OBJECTIVE FORESTRY

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FORESTRY

PLANT AND WOOD ANATOMY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Plant cells that are photosynthetically active are formed in the ____ A ____ layer of leaves and are ____ B ____ Choose the correct combination of A and B from the below given options.
A
A-mesophyll, B-parenchymatous
B
A-mesophyll, B-collenchymatous
C
A-mesophyll, B-sclerenchymatous
D
A-mesophyll, B-meristematic
Explanation: 

Detailed explanation-1: -Plant cells that are photosynthetically active are found in the mesophyll layer of leaf and are parenchymatous cells.

Detailed explanation-2: -Mesophyll cells are provided with a large number of chloroplast. Photosynthesis occurs in the chloroplast. Hence mesophyll cells of leaves are the principal centre of photosynthesis.

Detailed explanation-3: -All of the green structures in plants, including stems and unripened fruit, contain chloroplasts, but the majority of photosynthesis activity in most plants occurs in the leaves.

Detailed explanation-4: -In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

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