You are presented with the question "What structures are in the cytoplasm where proteins are made?" and the following answer choices: 
- layers of fat
 - important habitats
 - Veins and arteries.
 - bioaerosols
 - bound and free
 - sensory neurons
 - a cuticle
 - a delta

Now knowing that ribosomes are structures in the cytoplasm where proteins are made and bound and free ribosomes are structurally identical and interchangeable, choose the best answer.


 

     bound and free    