2) Choose the best answer. An organelle where amino acids are joined to make proteins is a .
A. cytoskeleton
B. lysosome
C. mitochondria
D. vacuole
E. ribosome

3) Choose the best answer.
The provides structure and support to the cell.
A. vacuole
B. cytoplasm
C. cytoskeleton
D. lysosome
E. mitochondria

4) Choose the best answer.
An organelle which is involved in photosynthesis is the .
A. chloroplast
B. vacuole
C. cytoskeleton
D. ribosome
E. lysosome