EVERYDAY SCIENCE

Detailed explanation-1: -The green pigment chlorophyll is located within the thylakoid membrane, and the space between the thylakoid and the chloroplast membranes is called the stroma (Figure 3, Figure 4).

Detailed explanation-2: -The part of the cell that contains chlorophyll is the chloroplast. Chloroplasts are membrane bound organelles in plant cells that carry out photosynthesis. Chloroplasts are covered by two membranes and contain stacks of thylakoids, which are called granum. The space in between the grana is called the stroma.

Detailed explanation-3: -The chlorophyll molecule consists of a central magnesium atom surrounded by a nitrogen-containing structure called a porphyrin ring; attached to the ring is a long carbon–hydrogen side chain, known as a phytol chain.

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.

Detailed explanation-5: -The grana contain light trapping pigment chlorophyll and are thus the site of light reaction. The stroma contains enzymes, which are responsible for dark reaction part of photosynthesis.