The correct answer is: D. In chloroplast membranes.
Chlorophyll is a green pigment that is found in chloroplasts. Chloroplasts are organelles that are found in plant cells and some bacteria. They are responsible for photosynthesis, which is the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen.
The nucleoid is the region of a prokaryotic cell that contains the cell’s DNA. The infolded plasma membrane is a structure that is found in some bacteria. It is involved in the transport of molecules into and out of the cell. Ribosomes are organelles that are found in all cells. They are responsible for the synthesis of proteins.
In autotrophic bacteria, chlorophyll is located in the chloroplast membranes. The chloroplast membranes are arranged in stacks called thylakoid membranes. The thylakoid membranes contain chlorophyll and other pigments that absorb sunlight. The light energy that is absorbed by the pigments is used to split water molecules into hydrogen ions and oxygen gas. The hydrogen ions are then used to produce ATP, which is a molecule that stores energy. The oxygen gas is released into the environment.
The process of photosynthesis is essential for life on Earth. It is the process by which plants produce the oxygen that we breathe and the food that we eat.