What are three differences between plant and animal cells?
Animal cells and plant cells are similar in several ways. For example, both are comprised of a nucleus and various organelles. Although there are similarities between these two types of cells, they also differ in many ways.
One of the main differences between these cells is their shape. Animal cells are less structured than plant cells. They are irregular and round in shape, whereas plant cells have a more rigid structure and are square-shaped or rectangular. Animal cells have a cell membrane, but no cell wall, which is why their shape is not as structured as that of plant cells, which do have cell walls made of cellulose in addition to cell membranes.
Animal and plant cells differ in their abilities to produce amino acids used in protein production. Twenty amino acids are needed to produce proteins. Animal cells are only able to naturally produce half of these amino acids; they rely on diet for the other half. Plants, however, are able to produce all twenty necessary amino acids naturally.
Plant cells contain organelles called plastids, which are not present in animal cells. Plant cells use plastids, such as chloroplasts, for photosynthesis, which is the production of food from sunlight.