Cells MCQ Questions and Answers for Practice

1. When a cell structure is worn out or defective, which organelle is responsible for breaking down the material?

1. lysosome
2. cytoplasm
3. ribosome
4. nucleus

2. All living things are composed of

1. cell theory
2. ribosomes
3. organelles
4. cells

3. The most basic units of structure and function in all organisms are

1. cells
2. cell theory
3. organelles
4. ribosomes

4. What is the organelle that is a small grain like structure where proteins are made?

1. cytoplasm
2. nucleus
3. ribosomes
4. Lysosomes

5. Which two plant cell structures are responsible for storing energy from sunlight and later releasing it for cells to use?

1. chloroplast and nucleus
2. mitochondria and cell wall
3. chloroplast and mitochondria
4. nucleus and cell wall

6. Which two plant cell structures work together, like security guards, for the cell?

1. Cytoplasm and Nucleus
2. Cell Membrane and Cell Wall
3. Nucleus and Oxygen
4. Oxygen and Cell Membrane

7. What features do plant cells have that animal cells lack?

1. Nucleus and cell membrane
2. cell wall and chloroplasts
3. cytoplasm and cell wall
4. cell membrane and chloroplasts

8. What two organelles function as storage units; one for chemicals and the other for such things as food, water, and waste?

1. cytoplasm and vacuoles
2. vacuoles and cytoplasm
3. ribosomes and lysosomes
4. lysosomes and vacuoles

9. The fluid substance that holds the organelles of the cell is called the

1. cytoplasm
2. cell wall
3. nucleus
4. ribosome

10. Which ONE of the following correctly matches the organelle with its function?

1. cell wall: produces energy for the cell
2. nucleus: control center of the cell
3. cell membrane: gives rigid structure to the plant cell
4. chloroplasts: colorless, jelly-like substance that supports the other organelles

11. Which organelle functions as the “powerhouse” of the cell by producing the energy necessary for all cell functions to occur?

1. cytoplasm
2. ribosomes
3. nucleus
4. mitochondria

12. Select the statement that best describes the function of the cell wall.

1. It gives shape to plant cells
2. It produces food from sunlight
3. Its jelly like fluid surrounds the nucleus and most of the cells internal parts
4. It contains the cells nuclear material

13. What is a function of the nucleus of an animal cell?

1. It is the place where energy is produced.
2. It stores the genetic information, the DNA (chromosomes).
3. It defends the cell from infections.
4. It captures sunlight to produce food.

14. Select a statement that best completes the phrase below. In a plant cell

1. there is one large vacuole that stores water and helps hold up the plant.
2. the vacuoles enter and leave through the cell membrane.
3. there are lots of small vacuoles.
4. there are no vacuoles.

15. Which of the following does a plant cell have? I. cell membrane, II. cell wall, III.cytoplasm

1. II only
2. III only
3. II and III only
4. I, II, and III