LIFE SCIENCE

Detailed explanation-1: -Palisade cells contain the largest number of chloroplasts per cell, which makes them the primary site of photosynthesis in the leaves of those plants that contain them, maximizing energy transfer, converting the energy in light to the chemical energy of carbohydrates.

Detailed explanation-2: -Most photosynthesis takes place in the palisade cells.

Detailed explanation-3: -The palisade parenchyma tissue usually is located on the upper side of the leaf, and the spongy parenchyma on the lower side. There may be only a single layer of palisade cells perpendicularly arranged below the upper epidermis, or there may be as many as three layers.