sweatSmile/neet-biology-qa · Datasets at Hugging Face

question stringlengths 34 139	subject stringclasses 1 value	choices listlengths 4 4	answer stringclasses 4 values
Which of the following is the major photosynthetic tissue in leaves of higher plants?	biology	[ "Epidermis", "Palisade mesophyll", "Xylem", "Phloem" ]	B
In cockroaches, the respiratory system is composed of	biology	[ "Gills", "Lungs", "Spiracles and tracheae", "Book lungs" ]	C
In frogs, the structure responsible for equalizing the pressure on both sides of the tympanum is the	biology	[ "Glottis", "Eustachian tube", "Cloaca", "Vomerine teeth" ]	B
Which part of the human brain is primarily responsible for regulating body temperature?	biology	[ "Medulla oblongata", "Hypothalamus", "Cerebellum", "Cerebrum" ]	B
Which plant hormone is primarily responsible for initiating seed dormancy?	biology	[ "Auxin", "Gibberellin", "Abscisic acid", "Cytokinin" ]	C
The Malpighian tubules in insects are mainly involved in	biology	[ "Digestion of proteins", "Excretion of nitrogenous wastes", "Respiration", "Circulation of blood" ]	B
Which hormone is primarily responsible for stimulating the process of ecdysis in insects?	biology	[ "Ecdysone", "Auxin", "Gibberellin", "Thyroxine" ]	A
The main function of casparian strips found in the endodermal cells of roots is to	biology	[ "Allow free movement of water in all directions", "Prevent symplastic movement of ions", "Block the apoplastic pathway, forcing substances through the plasma membrane", "Facilitate passive absorption of minerals" ]	C
Which of the following animals is correctly matched with its excretory organs?	biology	[ "Earthworm – Malpighian tubules", "Cockroach – Nephridia", "Frog – Kidneys", "Amoeba – Flame cells" ]	C
In dicot stems, the vascular bundles are characterized by which of the following arrangements?	biology	[ "Scattered throughout the ground tissue", "Arranged in a ring", "Concentrated at the center", "Arranged in pairs" ]	B
Which of the following structures in earthworm is responsible for secreting the cocoon during reproduction?	biology	[ "Clitellum", "Setae", "Typhlosole", "Nephridia" ]	A
Which plant hormone is primarily responsible for promoting seed dormancy and inhibiting seed germination?	biology	[ "Gibberellin", "Ethylene", "Abscisic acid", "Cytokinin" ]	C
In angiosperms, double fertilization results in the formation of	biology	[ "Two embryos", "One embryo and one endosperm", "Two endosperms", "Two zygotes" ]	B
Which of the following animals is correctly matched with its mode of excretion?	biology	[ "Cockroach – Urea", "Frog – Ammonia", "Human – Uric acid", "Bird – Uric acid" ]	D
Which of the following is a distinguishing feature of dicot stem when compared to monocot stem in T.S.?	biology	[ "Vascular bundles arranged in a ring", "Scattered vascular bundles", "Absence of cambium", "Vascular bundles are closed" ]	A
The Casparian strip found in the roots is composed primarily of	biology	[ "Cellulose", "Suberin", "Lignin", "Cutin" ]	B
Which of the following is a characteristic feature of phylum Cnidaria?	biology	[ "Presence of nephridia", "Radial symmetry", "Segmented body", "Triploblastic body plan" ]	B
Which of the following plants is an example of a stem succulent adapted to arid environments?	biology	[ "Opuntia", "Pisum", "Zea", "Oryza" ]	A
In which group of animals is the respiratory pigment dissolved directly in plasma rather than being contained within cells?	biology	[ "Mammals", "Insects", "Annelids", "Reptiles" ]	C
Which one of the following plant hormones is primarily responsible for cell elongation in stems?	biology	[ "Gibberellin", "Cytokinin", "Abscisic acid", "Ethylene" ]	A
In which of the following animals is the respiratory pigment dissolved directly in plasma rather than contained within cells?	biology	[ "Cockroach", "Frog", "Human", "Pigeon" ]	A
In which group of plants is the sporophyte completely dependent on the gametophyte for its nutrition?	biology	[ "Bryophytes", "Pteridophytes", "Gymnosperms", "Angiosperms" ]	A
The nodal tissue responsible for initiating the heartbeat in humans is known as the	biology	[ "Atrioventricular node", "Purkinje fibers", "Sinoatrial node", "Bundle of His" ]	C
Which one of the following is an example of a symbiotic nitrogen-fixing cyanobacterium found in the coralloid roots of Cycas?	biology	[ "Anabaena", "Frankia", "Rhizobium", "Azotobacter" ]	A
In cockroaches, which structure is responsible for the excretion of nitrogenous wastes?	biology	[ "Malpighian tubules", "Nephridia", "Green glands", "Flame cells" ]	A
In which of the following plants is the endosperm completely consumed by the developing embryo before seed maturation?	biology	[ "Castor", "Wheat", "Pea", "Coconut" ]	C
The Malpighian tubules in insects are primarily responsible for	biology	[ "Respiration", "Excretion", "Digestion", "Circulation" ]	B
In honey bees, the queen substance is primarily responsible for	biology	[ "Attracting drones during mating flights", "Inhibiting the development of ovaries in worker bees", "Stimulating the production of royal jelly by workers", "Regulating the temperature inside the hive" ]	B
Which of the following is a distinguishing feature of dicot stems when viewed in transverse section?	biology	[ "Scattered vascular bundles", "Vascular bundles arranged in a ring", "Absence of cambium", "Closed vascular bundles" ]	B
The hormone responsible for the stimulation of milk ejection (let-down) in mammals is	biology	[ "Prolactin", "Oxytocin", "Vasopressin", "Luteinizing hormone" ]	B
The hormone responsible for the molting process in arthropods is	biology	[ "Oxytocin", "Thyroxine", "Ecdysone", "Insulin" ]	C
Which type of phyllotaxy is found in the leaves of Nerium?	biology	[ "Alternate", "Opposite", "Whorled", "Rosette" ]	C
Which of the following animals is a viviparous mammal?	biology	[ "Platypus", "Kangaroo", "Crocodile", "Turtle" ]	B
In which animal is the circulatory system of the open type?	biology	[ "Earthworm", "Frog", "Cockroach", "Human" ]	C
Which of the following is a non-motile, colonial, freshwater green alga?	biology	[ "Spirogyra", "Volvox", "Chlamydomonas", "Ulothrix" ]	B
In cockroach, the organ responsible for excretion of nitrogenous wastes is:	biology	[ "Malpighian tubules", "Green glands", "Nephridia", "Flame cells" ]	A
Which of the following plant tissues is responsible for the formation of primary xylem and primary phloem?	biology	[ "Cork cambium", "Interfascicular cambium", "Vascular cambium", "Procambium" ]	D
In mammals, which of the following structures is directly involved in the production of testosterone?	biology	[ "Seminiferous tubules", "Leydig cells", "Epididymis", "Sertoli cells" ]	B
Which of the following is a character exclusive to members of the phylum Echinodermata?	biology	[ "Presence of book lungs", "Water vascular system", "Segmented body", "Exoskeleton of chitin" ]	B
In the process of double fertilization in angiosperms, one male gamete fuses with the egg while the other fuses with:	biology	[ "Synergid", "Antipodal cell", "Central cell", "Nucellus" ]	C
Which of the following is the principal photosynthetic pigment in cyanobacteria?	biology	[ "Chlorophyll a", "Chlorophyll b", "Phycoerythrin", "Carotene" ]	A
In cockroaches, the respiratory system consists of which of the following structures?	biology	[ "Gills", "Book lungs", "Tracheae", "Lungs" ]	C
In which part of the nephron does maximum reabsorption of glomerular filtrate occur?	biology	[ "Distal convoluted tubule", "Loop of Henle", "Proximal convoluted tubule", "Collecting duct" ]	C
Which of the following is a characteristic feature of collenchyma cells in plants?	biology	[ "Thick lignified secondary walls", "Irregularly thickened cell corners", "Large central vacuole", "Presence of pits and perforations" ]	B
Which one of the following tissues is responsible for the secondary growth in dicot stems?	biology	[ "Cork cambium", "Apical meristem", "Intercalary meristem", "Epidermis" ]	A
The enzyme pepsin is secreted in an inactive form called:	biology	[ "Trypsinogen", "Chymotrypsinogen", "Procarboxypeptidase", "Pepsinogen" ]	D
Which plant tissue is responsible for the formation of annual rings in woody dicots?	biology	[ "Cork cambium", "Intercalary meristem", "Vascular cambium", "Apical meristem" ]	C
Which one of the following animals is a uricotelic organism?	biology	[ "Frog", "Human", "Cockroach", "Earthworm" ]	C
Which of the following is a characteristic feature of dicotyledonous stems in transverse section?	biology	[ "Vascular bundles are scattered", "Vascular bundles are arranged in a ring", "Cambium is absent", "Bundle sheath is well-developed" ]	B
Which of the following is the major photosynthetic pigment in higher plants?	biology	[ "Chlorophyll a", "Chlorophyll b", "Carotene", "Xanthophyll" ]	A
In which of the following animals is a four-chambered heart present?	biology	[ "Frog", "Lizard", "Crocodile", "Turtle" ]	C
In cockroaches, the excretory organs are:	biology	[ "Malpighian tubules", "Nephridia", "Flame cells", "Green glands" ]	A
Which of the following diseases is caused by a protozoan parasite in humans?	biology	[ "Amoebiasis", "Tuberculosis", "Ringworm", "Ascariasis" ]	A
In dicot stems, the vascular bundles are best described as:	biology	[ "Scattered and closed", "Arranged in a ring and open", "Scattered and open", "Arranged in a ring and closed" ]	B
Which one of the following is the main photosynthetic tissue in the leaves of higher plants?	biology	[ "Phloem", "Xylem", "Palisade parenchyma", "Collenchyma" ]	C
The exoskeleton of arthropods is primarily composed of which substance?	biology	[ "Cellulose", "Chitin", "Pectin", "Keratin" ]	B
Which of the following plants exhibits a pinnately compound leaf?	biology	[ "Neem", "Lotus", "China rose", "Mustard" ]	A
The hormone responsible for molting in insects is:	biology	[ "Ecdysone", "Thyroxine", "Adrenaline", "Insulin" ]	A
In which animal does internal fertilization occur?	biology	[ "Frog", "Earthworm", "Pigeon", "Fish" ]	C
Which of the following plant tissues is responsible for the movement of water and minerals from roots to leaves?	biology	[ "Phloem", "Sclerenchyma", "Xylem", "Collenchyma" ]	C
Which type of inflorescence is characterized by the youngest flowers located at the base and older flowers towards the apex?	biology	[ "Cymose", "Racemose", "Umbel", "Capitulum" ]	B
Which of the following is a characteristic feature of mammals but not of other vertebrates?	biology	[ "Triploblastic organization", "Presence of gills at any life stage", "Mammary glands", "Internal fertilization" ]	C
Which of the following is a major photosynthetic pigment found in red algae?	biology	[ "Chlorophyll b", "Phycoerythrin", "Carotene", "Xanthophyll" ]	B
In cockroaches, which structure is primarily responsible for excretion?	biology	[ "Green glands", "Malpighian tubules", "Nephridia", "Flame cells" ]	B
In cockroach, the respiratory openings present on the lateral sides of the body are known as:	biology	[ "Malpighian tubules", "Spiracles", "Tracheoles", "Nephridia" ]	B
The cork cells in plants are impervious to water and gases due to the presence of which substance in their cell walls?	biology	[ "Lignin", "Suberin", "Cutin", "Pectin" ]	B
Which one of the following animals possesses a true coelom lined by mesodermal epithelium?	biology	[ "Ascaris", "Earthworm", "Planaria", "Hydra" ]	B
The Casparian strip in plant roots is primarily found in which cell layer?	biology	[ "Cortex", "Endodermis", "Pericycle", "Epidermis" ]	B
Which of the following is a characteristic feature of aves (birds)?	biology	[ "Presence of mammary glands", "Three-chambered heart", "Feathers and pneumatic bones", "External fertilization" ]	C
Which one of the following animals exhibits metamorphosis during its development?	biology	[ "Earthworm", "Cockroach", "Pigeon", "Rabbit" ]	B
Which plant hormone is primarily responsible for promoting lateral bud growth and overcoming apical dominance?	biology	[ "Auxin", "Cytokinin", "Gibberellin", "Abscisic acid" ]	B
In cockroach, the respiratory openings present on the lateral sides of the body are called	biology	[ "Tracheae", "Spiracles", "Malpighian tubules", "Book lungs" ]	B
In dicot stems, the vascular bundles are arranged in which of the following patterns?	biology	[ "Scattered throughout the ground tissue", "In a ring surrounding the pith", "Radially along the epidermis", "Concentrated at the center of the stem" ]	B
Which of the following is the excretory organ in earthworms?	biology	[ "Malpighian tubules", "Nephridia", "Flame cells", "Green glands" ]	B
Which of the following plant hormones is primarily responsible for promoting fruit ripening in climacteric fruits?	biology	[ "Gibberellin", "Ethylene", "Cytokinin", "Auxin" ]	B
Which type of inflorescence is characterized by older flowers at the base and younger flowers towards the apex?	biology	[ "Cymose", "Racemose", "Capitulum", "Umbel" ]	B
Which type of inflorescence is characterized by the main axis ending in a flower and further growth continuing through lateral branches?	biology	[ "Racemose", "Cymose", "Capitulum", "Spikelet" ]	B
In which phase of meiosis do homologous chromosomes undergo crossing over?	biology	[ "Metaphase I", "Prophase I", "Anaphase II", "Telophase I" ]	B
The Casparian strip is a characteristic feature of which plant tissue?	biology	[ "Cortex", "Phloem", "Endodermis", "Epidermis" ]	C
In cockroach, which structure is responsible for the storage of sperm received from the male during copulation?	biology	[ "Seminal vesicle", "Mushroom gland", "Spermatheca", "Colleterial gland" ]	C
Which of the following plant hormones is primarily responsible for promoting cell elongation in stems?	biology	[ "Abscisic acid", "Gibberellin", "Ethylene", "Cytokinin" ]	B
In which animal does the heart pump only deoxygenated blood?	biology	[ "Frog", "Lizard", "Fish", "Pigeon" ]	C
Which phylum is characterized by the presence of a water vascular system used for locomotion?	biology	[ "Mollusca", "Annelida", "Echinodermata", "Arthropoda" ]	C
The Casparian strip is a characteristic feature found in the	biology	[ "Cortex of root", "Endodermis of root", "Pericycle of stem", "Epidermis of leaf" ]	B
In cockroach, the organ responsible for excretion of nitrogenous wastes is	biology	[ "Green glands", "Malpighian tubules", "Nephridia", "Flame cells" ]	B
The casparian strip is a characteristic feature of which plant tissue?	biology	[ "Cortex", "Epidermis", "Endodermis", "Pericycle" ]	C
Which hormone is primarily responsible for stimulating the molting process in arthropods?	biology	[ "Ecdysone", "Insulin", "Vasopressin", "Oxytocin" ]	A
Which of the following plant hormones is primarily responsible for apical dominance?	biology	[ "Auxin", "Cytokinin", "Gibberellin", "Ethylene" ]	A
In which plant tissue are companion cells associated with sieve tube elements?	biology	[ "Xylem", "Phloem", "Collenchyma", "Epidermis" ]	B
Which hormone is primarily responsible for metamorphosis in frogs?	biology	[ "Insulin", "Thyroxine", "Adrenaline", "Glucagon" ]	B
Which of the following statements regarding C4 plants is correct?	biology	[ "They have Kranz anatomy in their leaves", "They utilize only the Calvin cycle for carbon fixation", "They are less efficient than C3 plants under high light intensity", "They exhibit high rates of photorespiration" ]	A
In mammals, which structure is primarily responsible for the production of cerebrospinal fluid?	biology	[ "Pineal gland", "Choroid plexus", "Thalamus", "Corpus callosum" ]	B
In which part of the nephron does selective reabsorption of glucose primarily occur?	biology	[ "Proximal convoluted tubule", "Distal convoluted tubule", "Collecting duct", "Loop of Henle" ]	A
Which plant hormone is mainly responsible for the initiation of seed dormancy?	biology	[ "Abscisic acid", "Gibberellin", "Auxin", "Cytokinin" ]	A
Which of the following structures is responsible for the absorption of water and minerals in the root of a plant?	biology	[ "Root cap", "Root hair", "Pericycle", "Endodermis" ]	B
In mammals, which part of the brain is primarily responsible for thermoregulation?	biology	[ "Medulla oblongata", "Hypothalamus", "Cerebellum", "Pineal gland" ]	B
Which of the following animals is oviparous?	biology	[ "Cow", "Kangaroo", "Platypus", "Bat" ]	C
Which of the following is a distinguishing feature of dicot stem when observed in a transverse section?	biology	[ "Vascular bundles arranged in a ring", "Scattered vascular bundles", "Absence of cambium", "Closed vascular bundles" ]	A
Which structure in a dicot seed is primarily responsible for storing food reserves for the developing embryo?	biology	[ "Endosperm", "Cotyledons", "Radicle", "Testa" ]	B
In which of the following animal groups does external fertilization commonly occur?	biology	[ "Reptiles", "Amphibians", "Mammals", "Birds" ]	B

Which of the following is the major photosynthetic tissue in leaves of higher plants?

biology

[ "Epidermis", "Palisade mesophyll", "Xylem", "Phloem" ]

B

In cockroaches, the respiratory system is composed of

biology

[ "Gills", "Lungs", "Spiracles and tracheae", "Book lungs" ]

C

In frogs, the structure responsible for equalizing the pressure on both sides of the tympanum is the

biology

[ "Glottis", "Eustachian tube", "Cloaca", "Vomerine teeth" ]

B

Which part of the human brain is primarily responsible for regulating body temperature?

biology

[ "Medulla oblongata", "Hypothalamus", "Cerebellum", "Cerebrum" ]

B

Which plant hormone is primarily responsible for initiating seed dormancy?

biology

[ "Auxin", "Gibberellin", "Abscisic acid", "Cytokinin" ]

C

The Malpighian tubules in insects are mainly involved in

biology

[ "Digestion of proteins", "Excretion of nitrogenous wastes", "Respiration", "Circulation of blood" ]

B

Which hormone is primarily responsible for stimulating the process of ecdysis in insects?

biology

[ "Ecdysone", "Auxin", "Gibberellin", "Thyroxine" ]

A

The main function of casparian strips found in the endodermal cells of roots is to

biology

[ "Allow free movement of water in all directions", "Prevent symplastic movement of ions", "Block the apoplastic pathway, forcing substances through the plasma membrane", "Facilitate passive absorption of minerals" ]

C

Which of the following animals is correctly matched with its excretory organs?

biology

[ "Earthworm – Malpighian tubules", "Cockroach – Nephridia", "Frog – Kidneys", "Amoeba – Flame cells" ]

C

In dicot stems, the vascular bundles are characterized by which of the following arrangements?

biology

[ "Scattered throughout the ground tissue", "Arranged in a ring", "Concentrated at the center", "Arranged in pairs" ]

B

Which of the following structures in earthworm is responsible for secreting the cocoon during reproduction?

biology

[ "Clitellum", "Setae", "Typhlosole", "Nephridia" ]

A

Which plant hormone is primarily responsible for promoting seed dormancy and inhibiting seed germination?

biology

[ "Gibberellin", "Ethylene", "Abscisic acid", "Cytokinin" ]

C

In angiosperms, double fertilization results in the formation of

biology

[ "Two embryos", "One embryo and one endosperm", "Two endosperms", "Two zygotes" ]

B

Which of the following animals is correctly matched with its mode of excretion?

biology

[ "Cockroach – Urea", "Frog – Ammonia", "Human – Uric acid", "Bird – Uric acid" ]

D

Which of the following is a distinguishing feature of dicot stem when compared to monocot stem in T.S.?

biology

[ "Vascular bundles arranged in a ring", "Scattered vascular bundles", "Absence of cambium", "Vascular bundles are closed" ]

A

The Casparian strip found in the roots is composed primarily of

biology

[ "Cellulose", "Suberin", "Lignin", "Cutin" ]

B

Which of the following is a characteristic feature of phylum Cnidaria?

biology

[ "Presence of nephridia", "Radial symmetry", "Segmented body", "Triploblastic body plan" ]

B

Which of the following plants is an example of a stem succulent adapted to arid environments?

biology

[ "Opuntia", "Pisum", "Zea", "Oryza" ]

A

In which group of animals is the respiratory pigment dissolved directly in plasma rather than being contained within cells?

biology

[ "Mammals", "Insects", "Annelids", "Reptiles" ]

C

Which one of the following plant hormones is primarily responsible for cell elongation in stems?

biology

[ "Gibberellin", "Cytokinin", "Abscisic acid", "Ethylene" ]

A

In which of the following animals is the respiratory pigment dissolved directly in plasma rather than contained within cells?

biology

[ "Cockroach", "Frog", "Human", "Pigeon" ]

A

In which group of plants is the sporophyte completely dependent on the gametophyte for its nutrition?

biology

[ "Bryophytes", "Pteridophytes", "Gymnosperms", "Angiosperms" ]

A

The nodal tissue responsible for initiating the heartbeat in humans is known as the

biology

[ "Atrioventricular node", "Purkinje fibers", "Sinoatrial node", "Bundle of His" ]

C

Which one of the following is an example of a symbiotic nitrogen-fixing cyanobacterium found in the coralloid roots of Cycas?

biology

[ "Anabaena", "Frankia", "Rhizobium", "Azotobacter" ]

A

In cockroaches, which structure is responsible for the excretion of nitrogenous wastes?

biology

[ "Malpighian tubules", "Nephridia", "Green glands", "Flame cells" ]

A

In which of the following plants is the endosperm completely consumed by the developing embryo before seed maturation?

biology

[ "Castor", "Wheat", "Pea", "Coconut" ]

C

The Malpighian tubules in insects are primarily responsible for

biology

[ "Respiration", "Excretion", "Digestion", "Circulation" ]

B

In honey bees, the queen substance is primarily responsible for

biology

[ "Attracting drones during mating flights", "Inhibiting the development of ovaries in worker bees", "Stimulating the production of royal jelly by workers", "Regulating the temperature inside the hive" ]

B

Which of the following is a distinguishing feature of dicot stems when viewed in transverse section?

biology

[ "Scattered vascular bundles", "Vascular bundles arranged in a ring", "Absence of cambium", "Closed vascular bundles" ]

B

The hormone responsible for the stimulation of milk ejection (let-down) in mammals is

biology

[ "Prolactin", "Oxytocin", "Vasopressin", "Luteinizing hormone" ]

B

The hormone responsible for the molting process in arthropods is

biology

[ "Oxytocin", "Thyroxine", "Ecdysone", "Insulin" ]

C

Which type of phyllotaxy is found in the leaves of Nerium?

biology

[ "Alternate", "Opposite", "Whorled", "Rosette" ]

C

Which of the following animals is a viviparous mammal?

biology

[ "Platypus", "Kangaroo", "Crocodile", "Turtle" ]

B

In which animal is the circulatory system of the open type?

biology

[ "Earthworm", "Frog", "Cockroach", "Human" ]

C

Which of the following is a non-motile, colonial, freshwater green alga?

biology

[ "Spirogyra", "Volvox", "Chlamydomonas", "Ulothrix" ]

B

In cockroach, the organ responsible for excretion of nitrogenous wastes is:

biology

[ "Malpighian tubules", "Green glands", "Nephridia", "Flame cells" ]

A

Which of the following plant tissues is responsible for the formation of primary xylem and primary phloem?

biology

[ "Cork cambium", "Interfascicular cambium", "Vascular cambium", "Procambium" ]

D

In mammals, which of the following structures is directly involved in the production of testosterone?

biology

[ "Seminiferous tubules", "Leydig cells", "Epididymis", "Sertoli cells" ]

B

Which of the following is a character exclusive to members of the phylum Echinodermata?

biology

[ "Presence of book lungs", "Water vascular system", "Segmented body", "Exoskeleton of chitin" ]

B

In the process of double fertilization in angiosperms, one male gamete fuses with the egg while the other fuses with:

biology

[ "Synergid", "Antipodal cell", "Central cell", "Nucellus" ]

C

Which of the following is the principal photosynthetic pigment in cyanobacteria?

biology

[ "Chlorophyll a", "Chlorophyll b", "Phycoerythrin", "Carotene" ]

A

In cockroaches, the respiratory system consists of which of the following structures?

biology

[ "Gills", "Book lungs", "Tracheae", "Lungs" ]

C

In which part of the nephron does maximum reabsorption of glomerular filtrate occur?

biology

[ "Distal convoluted tubule", "Loop of Henle", "Proximal convoluted tubule", "Collecting duct" ]

C

Which of the following is a characteristic feature of collenchyma cells in plants?

biology

[ "Thick lignified secondary walls", "Irregularly thickened cell corners", "Large central vacuole", "Presence of pits and perforations" ]

B

Which one of the following tissues is responsible for the secondary growth in dicot stems?

biology

[ "Cork cambium", "Apical meristem", "Intercalary meristem", "Epidermis" ]

A

The enzyme pepsin is secreted in an inactive form called:

biology

[ "Trypsinogen", "Chymotrypsinogen", "Procarboxypeptidase", "Pepsinogen" ]

D

Which plant tissue is responsible for the formation of annual rings in woody dicots?

biology

[ "Cork cambium", "Intercalary meristem", "Vascular cambium", "Apical meristem" ]

C

Which one of the following animals is a uricotelic organism?

biology

[ "Frog", "Human", "Cockroach", "Earthworm" ]

C

Which of the following is a characteristic feature of dicotyledonous stems in transverse section?

biology

[ "Vascular bundles are scattered", "Vascular bundles are arranged in a ring", "Cambium is absent", "Bundle sheath is well-developed" ]

B

Which of the following is the major photosynthetic pigment in higher plants?

biology

[ "Chlorophyll a", "Chlorophyll b", "Carotene", "Xanthophyll" ]

A

In which of the following animals is a four-chambered heart present?

biology

[ "Frog", "Lizard", "Crocodile", "Turtle" ]

C

In cockroaches, the excretory organs are:

biology

[ "Malpighian tubules", "Nephridia", "Flame cells", "Green glands" ]

A

Which of the following diseases is caused by a protozoan parasite in humans?

biology

[ "Amoebiasis", "Tuberculosis", "Ringworm", "Ascariasis" ]

A

In dicot stems, the vascular bundles are best described as:

biology

[ "Scattered and closed", "Arranged in a ring and open", "Scattered and open", "Arranged in a ring and closed" ]

B

Which one of the following is the main photosynthetic tissue in the leaves of higher plants?

biology

[ "Phloem", "Xylem", "Palisade parenchyma", "Collenchyma" ]

C

The exoskeleton of arthropods is primarily composed of which substance?

biology

[ "Cellulose", "Chitin", "Pectin", "Keratin" ]

B

Which of the following plants exhibits a pinnately compound leaf?

biology

[ "Neem", "Lotus", "China rose", "Mustard" ]

A

The hormone responsible for molting in insects is:

biology

[ "Ecdysone", "Thyroxine", "Adrenaline", "Insulin" ]

A

In which animal does internal fertilization occur?

biology

[ "Frog", "Earthworm", "Pigeon", "Fish" ]

C

Which of the following plant tissues is responsible for the movement of water and minerals from roots to leaves?

biology

[ "Phloem", "Sclerenchyma", "Xylem", "Collenchyma" ]

C

Which type of inflorescence is characterized by the youngest flowers located at the base and older flowers towards the apex?

biology

[ "Cymose", "Racemose", "Umbel", "Capitulum" ]

B

Which of the following is a characteristic feature of mammals but not of other vertebrates?

biology

[ "Triploblastic organization", "Presence of gills at any life stage", "Mammary glands", "Internal fertilization" ]

C

Which of the following is a major photosynthetic pigment found in red algae?

biology

[ "Chlorophyll b", "Phycoerythrin", "Carotene", "Xanthophyll" ]

B

In cockroaches, which structure is primarily responsible for excretion?

biology

[ "Green glands", "Malpighian tubules", "Nephridia", "Flame cells" ]

B

In cockroach, the respiratory openings present on the lateral sides of the body are known as:

biology

[ "Malpighian tubules", "Spiracles", "Tracheoles", "Nephridia" ]

B

The cork cells in plants are impervious to water and gases due to the presence of which substance in their cell walls?

biology

[ "Lignin", "Suberin", "Cutin", "Pectin" ]

B

Which one of the following animals possesses a true coelom lined by mesodermal epithelium?

biology

[ "Ascaris", "Earthworm", "Planaria", "Hydra" ]

B

The Casparian strip in plant roots is primarily found in which cell layer?

biology

[ "Cortex", "Endodermis", "Pericycle", "Epidermis" ]

B

Which of the following is a characteristic feature of aves (birds)?

biology

[ "Presence of mammary glands", "Three-chambered heart", "Feathers and pneumatic bones", "External fertilization" ]

C

Which one of the following animals exhibits metamorphosis during its development?

biology

[ "Earthworm", "Cockroach", "Pigeon", "Rabbit" ]

B

Which plant hormone is primarily responsible for promoting lateral bud growth and overcoming apical dominance?

biology

[ "Auxin", "Cytokinin", "Gibberellin", "Abscisic acid" ]

B

In cockroach, the respiratory openings present on the lateral sides of the body are called

biology

[ "Tracheae", "Spiracles", "Malpighian tubules", "Book lungs" ]

B

In dicot stems, the vascular bundles are arranged in which of the following patterns?

biology

[ "Scattered throughout the ground tissue", "In a ring surrounding the pith", "Radially along the epidermis", "Concentrated at the center of the stem" ]

B

Which of the following is the excretory organ in earthworms?

biology

[ "Malpighian tubules", "Nephridia", "Flame cells", "Green glands" ]

B

Which of the following plant hormones is primarily responsible for promoting fruit ripening in climacteric fruits?

biology

[ "Gibberellin", "Ethylene", "Cytokinin", "Auxin" ]

B

Which type of inflorescence is characterized by older flowers at the base and younger flowers towards the apex?

biology

[ "Cymose", "Racemose", "Capitulum", "Umbel" ]

B

Which type of inflorescence is characterized by the main axis ending in a flower and further growth continuing through lateral branches?

biology

[ "Racemose", "Cymose", "Capitulum", "Spikelet" ]

B

In which phase of meiosis do homologous chromosomes undergo crossing over?

biology

[ "Metaphase I", "Prophase I", "Anaphase II", "Telophase I" ]

B

The Casparian strip is a characteristic feature of which plant tissue?

biology

[ "Cortex", "Phloem", "Endodermis", "Epidermis" ]

C

In cockroach, which structure is responsible for the storage of sperm received from the male during copulation?

biology

[ "Seminal vesicle", "Mushroom gland", "Spermatheca", "Colleterial gland" ]

C

Which of the following plant hormones is primarily responsible for promoting cell elongation in stems?

biology

[ "Abscisic acid", "Gibberellin", "Ethylene", "Cytokinin" ]

B

In which animal does the heart pump only deoxygenated blood?

biology

[ "Frog", "Lizard", "Fish", "Pigeon" ]

C

Which phylum is characterized by the presence of a water vascular system used for locomotion?

biology

[ "Mollusca", "Annelida", "Echinodermata", "Arthropoda" ]

C

The Casparian strip is a characteristic feature found in the

biology

[ "Cortex of root", "Endodermis of root", "Pericycle of stem", "Epidermis of leaf" ]

B

In cockroach, the organ responsible for excretion of nitrogenous wastes is

biology

[ "Green glands", "Malpighian tubules", "Nephridia", "Flame cells" ]

B

The casparian strip is a characteristic feature of which plant tissue?

biology

[ "Cortex", "Epidermis", "Endodermis", "Pericycle" ]

C

Which hormone is primarily responsible for stimulating the molting process in arthropods?

biology

[ "Ecdysone", "Insulin", "Vasopressin", "Oxytocin" ]

A

Which of the following plant hormones is primarily responsible for apical dominance?

biology

[ "Auxin", "Cytokinin", "Gibberellin", "Ethylene" ]

A

In which plant tissue are companion cells associated with sieve tube elements?

biology

[ "Xylem", "Phloem", "Collenchyma", "Epidermis" ]

B

Which hormone is primarily responsible for metamorphosis in frogs?

biology

[ "Insulin", "Thyroxine", "Adrenaline", "Glucagon" ]

B

Which of the following statements regarding C4 plants is correct?

biology

[ "They have Kranz anatomy in their leaves", "They utilize only the Calvin cycle for carbon fixation", "They are less efficient than C3 plants under high light intensity", "They exhibit high rates of photorespiration" ]

A

In mammals, which structure is primarily responsible for the production of cerebrospinal fluid?

biology

[ "Pineal gland", "Choroid plexus", "Thalamus", "Corpus callosum" ]

B

In which part of the nephron does selective reabsorption of glucose primarily occur?

biology

[ "Proximal convoluted tubule", "Distal convoluted tubule", "Collecting duct", "Loop of Henle" ]

A

Which plant hormone is mainly responsible for the initiation of seed dormancy?

biology

[ "Abscisic acid", "Gibberellin", "Auxin", "Cytokinin" ]

A

Which of the following structures is responsible for the absorption of water and minerals in the root of a plant?

biology

[ "Root cap", "Root hair", "Pericycle", "Endodermis" ]

B

In mammals, which part of the brain is primarily responsible for thermoregulation?

biology

[ "Medulla oblongata", "Hypothalamus", "Cerebellum", "Pineal gland" ]

B

Which of the following animals is oviparous?

biology

[ "Cow", "Kangaroo", "Platypus", "Bat" ]

C

Which of the following is a distinguishing feature of dicot stem when observed in a transverse section?

biology

[ "Vascular bundles arranged in a ring", "Scattered vascular bundles", "Absence of cambium", "Closed vascular bundles" ]

A

Which structure in a dicot seed is primarily responsible for storing food reserves for the developing embryo?

biology

[ "Endosperm", "Cotyledons", "Radicle", "Testa" ]

B

In which of the following animal groups does external fertilization commonly occur?

biology

[ "Reptiles", "Amphibians", "Mammals", "Birds" ]

B