NEET BIOLOGY

Detailed explanation-1: -A chloroplast is an organelle within the cells of plants and certain algae that is the site of photosynthesis, which is the process by which energy from the Sun is converted into chemical energy for growth.

Detailed explanation-2: -Grana, the plural of granum, are piles of designs called thylakoids, which are little plates of layer on which light-subordinate photosynthesis responses happen. Stroma is comprised of photosynthetic proteins, starch grains, DNA, and ribosomes.

Detailed explanation-3: -Grana is the plural form of granum, which is the single form. The stroma lamellae connect two grana. Chloroplasts are made up of grana and stroma lamellae. The photosynthetic light reaction takes place in grana.

Detailed explanation-4: -The grana in the chloroplast act together as a unit and are interconnected through small tunnels in the lower part of thylakoid stacks called stromal thylakoids. Grana help contribute to the chloroplast’s large surface area. They help add more surface area to the thylakoids because they are organized and stacked.

Detailed explanation-5: -Granum is a basic structural unit of the thylakoid membrane network of plant chloroplasts. It is composed of multiple flattened membranes forming a stacked arrangement of a cylindrical shape.