EVERYDAY SCIENCE

Detailed explanation-1: -Chlorophyll is present inside chloroplast. This is a feature of plant cells. Animal cells do not contain chlorophyll containing chloroplasts. Hence, they cannot perform photosynthesis.

Detailed explanation-2: -Only cells with chloroplasts-plant cells and algal (protist) cells-can perform photosynthesis. Animal cells and fungal cells do not have chloroplasts and, therefore, cannot photosynthesize.

Detailed explanation-3: -Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis (Figure 1). Because they use light to manufacture their own food, they are called photoautotrophs (literally, “self-feeders using light”).

Detailed explanation-4: -Most life on Earth depends on photosynthesis. The process is carried out by plants, algae, and some types of bacteria, which capture energy from sunlight to produce oxygen (O2) and chemical energy stored in glucose (a sugar).