NEET BIOLOGY

Detailed explanation-1: -The palisade mesophyll layer is made up of closely-packed, elongated cells located just below the upper epidermis. They contain chloroplasts and carry out most of the photosynthesis.

Detailed explanation-2: -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).

Detailed explanation-3: -In leaves, cells in the mesophyll (the tissue between the upper and lower epidermis) are uniquely suited to carry out photosynthesis on a large scale. This is due to their high concentration of chloroplasts, which are the sites of photosynthesis.

Detailed explanation-4: -At low light levels, green leaves are most efficient at photosynthesis. On a sunny day, however, there is essentially no difference between red and green leaves’ ability to trap the sun’s energy.

Detailed explanation-5: -The palisade is a layer of closely packed cells found under the upper epidermis and cuticle which is the outermost layer of a leaf. The definition of palisade is a layer of plant cells containing chloroplasts right below the cuticle and upper epidermis in plants. Palisade cells are columnar shaped.