Question

Brain cells and bacterial cells are different in many ways. However, which of the following is something that they have in common?

1) Both have a nucleus
2) Both have a cell membrane
3) Both have cell walls
4) Both have mitochondria

Answer 1

Both brain cells, which are eukaryotic, and bacterial cells, which are prokaryotic, share the presence of a cell membrane, among other common structures such as cytoplasm, DNA, and ribosomes.

Step-by-step explanation:

Both brain cells and bacterial cells, despite their differences, have a cell membrane. This structure functions as a barrier for the cell, separating it from its surroundings. While brain cells are eukaryotic and contain organelles such as a nucleus and mitochondria, bacterial cells are prokaryotic and lack these membrane-bound structures. A key fact to remember is that all cells, whether prokaryotic or eukaryotic, share certain common structures including the cell membrane, cytoplasm, DNA, and ribosomes, which synthesize proteins.