AP BIOLOGY

Detailed explanation-1: -Chloroplasts are organelles present in plant cells, which absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food. Animal cells do not contain chloroplasts. So, animals cannot make their own food.

Detailed explanation-2: -The process by which plants and certain organisms convert light energy(sunlight), water, and carbon dioxide into food(sugar). For photosynthesis to take place the organism must have chlorophyll. Since animal cells do not have chlorophyll photosynthesis does not take place in them.

Detailed explanation-3: -Because animals get sugar from the food they eat, they do not need chloroplasts: just mitochondria. Both plant and animal cells have vacuoles. A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles.

Detailed explanation-4: -The organelles are only found in plant cells and some protists such as algae. Animal cells do not have chloroplasts. Chloroplasts work to convert light energy of the Sun into sugars that can be used by cells. It is like a solar panel that changes sunlight energy into electric energy.

Detailed explanation-5: -Cyanobacteria are a diverse group of photosynthetic bacteria that were previously known as ‘blue green algae’. These prokaryotes perform photosynthesis even though they do not have chloroplast. This is because they possess chlorophylls in the cytoplasm.