SSC MTS EXAM

Detailed explanation-1: -"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)."

Detailed explanation-2: -The function of the palisade layer, which is also called the palisade mesophyll, is photosynthesis because it contains most of the chloroplasts in the leaf which maximize energy production during photosynthesis.

Detailed explanation-3: -Light is an important environmental information source that plants use to modify their growth and development. Palisade parenchyma cells in leaves develop cylindrical shapes in response to blue light; however, the photosensory mechanism for this response has not been elucidated.