Study the diagram of a cell. Which structure is found only in plant cells and functions
in the process of photosynthesis?
W
X
Y
Z

in my knowledge

Option B: X

Explanation:

Plant cells have certain features, including chloroplasts, cell walls, and intracellular vacuoles. 

Photosynthesis takes place in chloroplasts; 

hence, X is your answer

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation:

looks like the answer is     c     to me!