Cell Biology Quiz

What is the basic structural and functional unit of all living organisms?

• organ

• cell

• tissue

• molecule

Which organelle is known as the powerhouse of the cell?

• Mitochondria

• Ribosome

• Nucleus

• Endoplasmic reticulum

What is the process by which cells replicate their DNA and divide into two daughter cells?

• Mitosis

• Meiosis

• Binary fission

• Photosynthesis

What is the function of the cell membrane?

• The cell membrane is responsible for producing energy for the cell.

• The function of the cell membrane is to regulate the passage of substances into and out of the cell.

• The cell membrane functions as a storage unit for excess nutrients.

• The cell membrane serves as a protective barrier against external stimuli.

What is the difference between prokaryotic and eukaryotic cells?

• The main difference is the presence of a nucleus and membrane-bound organelles in eukaryotic cells, which prokaryotic cells lack.

• Prokaryotic cells have a nucleus while eukaryotic cells lack one.

• Eukaryotic cells have a cell wall, unlike prokaryotic cells.

• The main difference is the size, with prokaryotic cells being larger than eukaryotic cells.