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Transcript of Plants
Photosynthesis is the process in plants which involves using sunlight to synthesize water and carbon dioxide to create food with the by-product of oxygen. The formula for photosynthesis is Carbon Dioxide+ water reacts to make Glucose + Oxygen (Co2 + H2O <> C6H12O6+O2). Plants then use these products to resparate.
All plants are made of plant cells. The cell wall protects the cell and the cell membrane controls what enters the cell. The nucleus is the control centre and the vacuole is the storage area. The chloroplasts is where photosynthesis happens and the cytoplasm holds products for a plant life time
Respiration is the process in living organisims involving the production of energy with the intake of oxygen and glucose and the release of carbon dioxide from the oxidation of complex organic substances. The formula for respiration is Glucose + oxygen reacts to make carbon dioxide + water + energy. (C6H12O6+O2 <> Co2 + H2O + energy)
Respiration and photosynthesis allows plants and animals to work in harmony because both produce what the other needs in a synergistic effect.
In what way are plants specialised to carry out their life processes?
There are three types of tissue systems
prevents water loss
Plants have two organ systems
MRS C GREN
Mrs C Gren is an acronym for all the things an organism must do to be defined as living.
A plant moves its leaves towards the sun in order for it to gain maximum sunlight for photosynthesis.
A plant reproduces by dropping seeds into the ground, these seeds later grow into plants.
Some plants use sensitivity to help feed themselves. An example of this is a Venus fly trap, when they sense a fly etc. on their trap, they close it and dissolve the prey.
A plant grows from a seed and shoots out roots to form a foundation and sprouts slowly until over many years it grows into a tree.
Plants excrete the by-product oxygen
Every living thing needs nutrients, in plants they need water, sunlight and carbon dioxide gas.
A plants circulation system is different to a humans in that it has water instead of blood, this water carries necessary nutrients including glucose through xylem and phloem vessels.
Plants respire to turn their food into energy.
Plants obtain the gases they need through their leaves. The gases diffuse through pores on the leaves called stomata. From the stomata the gases diffuse into the cells that require them.
When the gas Carbon Dioxide is diffused into the cells it is used for photosynthesis. This creates Oxygen as a by product. When Oxygen is absorbed through the stomata it is used for respiration and creates Carbon Dioxide as a by product. This exchange of Oxygen and Carbon Dioxide gives the process its name.