1. The smallest unit of life is:
a) Molecule
b) Cell
c) Tissue
d) Organism
2. The primary structure responsible for regulating what
enters and exits a cell is the: a) Nucleus
b) Mitochondria
c) Plasma membrane
d) Endoplasmic reticulum
3. Which organelle is known as the "powerhouse of the cell"?
a) Chloroplast
b) Mitochondrion
c) Ribosome
d) Golgi apparatus
4. The site of protein synthesis in a cell is:
a) Nucleus
b) Ribosome
c) Golgi apparatus
d) Lysosome
5. Which organelle is responsible for packaging and modifying
proteins?
a) Ribosome
b) Golgi apparatus
c) Endoplasmic reticulum
d) Lysosome
6. The cytoskeleton is primarily made up of:
a) Lipids
b) Carbohydrates
c) Proteins
d) Nucleic acids
7. Which type of cell lacks a nucleus?
a) Eukaryotic cell
b) Prokaryotic cell
c) Animal cell
d) Plant cell
8. What is the function of lysosomes in a cell?
a) Photosynthesis
b) Protein synthesis
c) Breakdown of waste materials
d) DNA replication
9. Which organelle is found in plant cells but not in animal
cells?
a) Mitochondrion
b) Nucleus
c) Chloroplast
d) Ribosome
10. The semi-fluid substance found inside the cell is known as:
a) Cytoplasm
b) Plasma membrane
c) Nucleoplasm
d) Endoplasmic reticulum
11. The rough endoplasmic reticulum is associated with:
a) Lipid synthesis
b) Protein synthesis
c) DNA replication
d) Carbohydrate metabolism
12. Which organelle is involved in energy production through
cellular respiration?
a) Golgi apparatus
b) Lysosome
c) Mitochondrion
d) Vacuole
