What does a plant and animal cell have in common?

Plant and animal cells both have nuclei, cytoplasm, and other organelles, such as the cell membrane. These parts are important for many different reasons.

Cells need a nucleus to be able to know what they should do, i.e. the nucleus acts as a "brain" for the cells. It controls many cell processes and synthesizes DNA as well. However, a domain called prokaryotes don't have a nucleus at all, but they still contain DNA and RNA genetic material.

Cells need a cytoplasm so that organelles can float in without falling apart. It is also where most chemical reactions happen, and also where other organelles such as the Golgi apparatus and the endoplasmic reticulum float around.

Cells need a cell membrane to control on what goes in and out of the cell. This stops unnecessary molecules or harmful ions from going in to the cell and damaging them.

Here is a diagram between plant and animal cells:

Hope this helps!