NEET BIOLOGY

Detailed explanation-1: -Parenchyma cells are often living cells and may remain meristematic, meaning that they are capable of cell division if stimulated. They have thin and flexible cellulose cell walls and are generally polyhedral when close-packed, but can be roughly spherical when isolated from their neighbors.

Detailed explanation-2: -They are made up of thin cell wall made up of cellulose, hemicellulose. Plasmodesmata join the cells of the parenchyma tissue. They have several small vacuoles. Their main functions include photosynthesis, storage, secretion, assimilation, respiration, excretion and radial transport of water and solute.

Detailed explanation-3: -The cell wall of parenchyma cells and sieve cells is mainly a primary cell wall, which contains mainly cellulose. In contrast, the cell wall of fiber cells, epidermal cells, and vessel cells is composed of the primary cell wall and the secondary cell wall; the secondary cell wall mainly contains lignin.

Detailed explanation-4: -Parenchyma cells are bricklike in shape and very small, with a length of 0.1–0.2 mm (about 0.004–0.008 inch) and a width of 0.01–0.05 mm (0.0004–0.002 inch). They are mainly concerned with the storage of food and its transport (horizontally in the case of radial parenchyma).…

Detailed explanation-5: -Parenchyma cells are living cells, and may still be able to divide when they are mature. Because of this, parenchyma cells are important for regeneration and wound healing. They have thin but flexible cell walls because the secondary cell wall is usually absent.