AP BIOLOGY

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, converting the energy in light to the chemical energy of carbohydrates.

Detailed explanation-2: -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-3: -The function of the palisade layer, which is also known as the palisade mesophyll, is photosynthesis. The palisade mesophyll cells are packed tightly together and contain chloroplasts to maximize energy production during photosynthesis.

Detailed explanation-4: -The palisade layer contains the most chloroplasts as it is near the top of the leaf. The chloroplasts contain the pigment chlorophyll. The palisade cells are arranged upright. This means the light has to pass through the cell lengthways and so increases the chance of light hitting a chloroplast and being absorbed.

Detailed explanation-5: -Mesophyll. The mesophyll generally is differentiated into columnar palisade parenchyma cells and irregularly shaped spongy parenchyma cells (Fig. 2.5). The palisade parenchyma tissue usually is located on the upper side of the leaf, and the spongy parenchyma on the lower side.