AP BIOLOGY

PLANTS

THE LEAF

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which cells contain many chloroplasts?
A
Palisade mesophyll cells
B
Epidermal cells
C
Spongy mesophyll cells
D
Guard cells
Explanation: 

Detailed explanation-1: -These cells contain most of the chloroplasts in a leaf.

Detailed explanation-2: -The palisade mesophyll layer is where most of the photosynthesis occurs in the leaf. The palisade cells contain a lot of chloroplasts to help them perform this photosynthesis.

Detailed explanation-3: -Palisade cells contain the largest number of chloroplasts per cell, which makes them the primary site of photosynthesis in the leaves of those plants that contain them, maximizing the production of energy, converting the energy in light to the chemical energy of carbohydrates.

Detailed explanation-4: -In plants, chloroplasts are concentrated particularly in the parenchyma cells of the leaf mesophyll (the internal cell layers of a leaf).

Detailed explanation-5: -"Whereas wild-type plants have 80 to 120 chloroplasts per mesophyll cell, the accumulation and regulation of chloroplast (arc) mutants used in this study have between one and about 30 chloroplasts per mesophyll cell (Table III)."

There is 1 question to complete.