AP BIOLOGY

Detailed explanation-1: -Chloroplast traps solar energy during photosynthesis in plants. It has a green-colored pigment called chlorophyll which helps in the absorption of sunlight.

Detailed explanation-2: -Inside the chloroplasts are stacks of discs called thylakoids. They are compared to stacks of coins within the walls of the chloroplast, and they act to trap the energy from sunlight. The stacks of thylakoids are called grana. They are connected with an extensive sytem of tubules.

Detailed explanation-3: -Chlorophyll is what absorbs the sun’s energy and turns it into chemical energy.

Detailed explanation-4: -Photosynthesis is a two-step process. In chloroplasts, chlorophyll molecules absorb sunlight and pass the extra energy to molecular partners that use it to generate the energy-storing chemicals adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide phosphate (NADPH).