Cell structure and organisation

1. A complete description of a cell lists a cellulose wall, chloroplasts, a large permanent vacuole, a nucleus and mitochondria. Which type of cell is it?

1. Plant cell
2. Animal cell
3. Bacterial cell
4. Red blood cell

2. Which structure is present in plant, animal and bacterial cells and controls movement of substances into and out of the cell?

1. Cellulose cell wall
2. Nucleus
3. Cell membrane
4. Chloroplast

3. Which structure contains genetic material and controls the activities of a typical plant or animal cell?

1. Vacuole
2. Nucleus
3. Ribosome
4. Cell wall

4. Where does aerobic respiration occur in a plant or animal cell?

1. Nucleus
2. Ribosome
3. Vacuole
4. Mitochondrion

5. Which structure contains chlorophyll and is the site of photosynthesis?

1. Chloroplast
2. Mitochondrion
3. Nucleus
4. Ribosome

6. What is a correct function of the large permanent vacuole in a typical plant cell?

1. It makes proteins.
2. It controls cell division.
3. It contains cell sap and helps support the cell when filled with water.
4. It carries out aerobic respiration.

7. Which statement correctly distinguishes a plant cell wall from its cell membrane?

1. The wall controls all cell activities.
2. The wall supports the cell, while the membrane controls movement of substances.
3. The wall makes proteins, while the membrane carries DNA.
4. The wall carries out respiration, while the membrane carries out photosynthesis.

8. Which structure is absent from a typical animal cell?

1. Cell membrane
2. Cytoplasm
3. Mitochondria
4. Cellulose cell wall

9. A complete cell description includes circular DNA free in cytoplasm, plasmids, ribosomes, a membrane and a wall, but no nucleus. What is the cell?

1. Bacterial cell
2. Animal cell
3. Palisade mesophyll cell
4. Root hair cell

10. What are plasmids in a bacterial cell?

1. Sites of aerobic respiration
2. Stores of cell sap
3. Small circular DNA molecules
4. Structures that contain chlorophyll

11. Which feature separates a bacterial cell from both a typical plant cell and a typical animal cell?

1. It has ribosomes.
2. It has no nucleus.
3. It has a cell membrane.
4. It has cytoplasm.

12. A component joins amino acids to make proteins. Which component is it?

1. Cell wall
2. Vacuole
3. Mitochondrion
4. Ribosome

13. Which statement describes the source of new cells?

1. New cells are produced by division of existing cells.
2. New cells form spontaneously from nutrients.
3. Only animal cells can produce new cells.
4. New cells are produced by mitochondria.

14. A culture starts with 3 cells. In each of two rounds, every cell divides once into two surviving cells and no cell dies. How many cells are present after round 2?

1. 6
2. 9
3. 12
4. 18

15. Which specialised cell moves mucus in the trachea and bronchi?

1. Root hair cell
2. Ciliated cell
3. Red blood cell
4. Palisade mesophyll cell

16. Which specialised cell absorbs water and mineral ions from soil?

1. Neurone
2. Sperm cell
3. Ciliated cell
4. Root hair cell

17. Which specialised cell carries out photosynthesis in a leaf?

1. Palisade mesophyll cell
2. Red blood cell
3. Neurone
4. Ciliated cell

18. What is the main specialised function of a red blood cell?

1. Absorption from soil
2. Photosynthesis
3. Transport of oxygen
4. Movement of mucus

19. Which specialised cell conducts electrical impulses?

1. Egg cell
2. Neurone
3. Root hair cell
4. Red blood cell

20. What is the shared specialised function of sperm and egg cells?

1. Oxygen transport
2. Electrical impulse conduction
3. Photosynthesis
4. Reproduction

21. What is a tissue?

1. A group of similar cells working together for a shared function
2. A group of organ systems forming an organism
3. One structure made only from identical organs
4. A single cell with several organelles

22. Which description defines an organ?

1. Several organisms of one species
2. One cell performing every body function
3. Different tissues working together for particular functions
4. Several organs working together as a system

23. Which sequence gives biological organisation from smallest level to largest level?

1. Tissue → cell → organ → organism → organ system
2. Cell → tissue → organ → organ system → organism
3. Cell → organ → tissue → organism → organ system
4. Organism → organ system → organ → tissue → cell

24. A complete description lists a membrane, cytoplasm, ribosomes and circular DNA free in the cytoplasm. It states that no nucleus, mitochondria or chloroplasts are present. Which conclusion is best?

1. It must be an animal cell because it has a membrane.
2. It must be a plant cell because it has cytoplasm.
3. It cannot be a cell because it has no mitochondria.
4. It is a bacterial cell because it has free circular DNA and no nucleus.