SSC MTS EXAM

SSC

BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which cells of a leaf undergo the MOST photosynthesis?
A
Guard cells
B
Palisade cells
C
Epidermal cells
D
Cells in the spongy layer
Explanation: 

Detailed explanation-1: -Palisade mesophyll cells are tall and have large number of closely packed chlorophyll molecules to absorb maximum light. Most photosynthesis takes place in the palisade cells.

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. The palisade cells are closely packed together to maximize light absorption.

Detailed explanation-3: -Palisade Layer of a Leaf Palisade cells are the site of photosynthesis due to the number of chloroplasts in each cell. Photosynthesis does occur in other parts of the leaf, but because of the number of chloroplasts in the palisade cells, the majority of photosynthesis occurs here.

Detailed explanation-4: -Photosynthesis takes place inside the chloroplasts that sit in the mesophyll of the leaves. The thylakoids sit inside the chloroplast and they contain chlorophyll which absorbs the different colours of the light spectrum to create energy (Source: Biology: LibreTexts).

There is 1 question to complete.