Why animal cells do not contain chloroplasts?

Answer 1

Animal cells are not capable of photosynthesis hence these cells lack chloroplasts. We can also put it this way, that since animal cells lack chloroplasts, these are not capable of photosynthesis.

Answer 2

Chloroplasts are organelles specialized for photosynthesis. Animals do not photosynthesize; therefore, they do not need chloroplasts.

The real answer is far more complicated than this and goes back more than 3 billion years ago when the first eukaryotic cells evolved by acquiring symbiotic bacteria. We may never really have a reason why some of these cells acquired symbiotic cyanobacteria which evolved into chloroplasts and others did not, or whyall of these cells acquired symbiotic rickettsia bacteriawhich evolved into mitochondria.

The eukaryotes that acquired the symbiotic cyanobacteria were able to become plants, while the others became animals and fungi.

Please don't confuse cause and effect.

Answer 3

Animal cells don't need chloroplasts because they get their food from outside sources such as plants or other animals whereas the chloroplasts in a plant cell help make the food for the plant.

Answer 4

Chlorophyll is needed for photosynthesis (make food for the plant) animals dont make their own food and therefore do not need chlorophyll

Answer 5

Animals are not photosynthetic.They obtain carbon from other organisms.