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Cell Biology Exam Questions
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Cell Biology Exam Questions
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25 Questions

1. What type of cell division causes the change in number of E. coli cells at P?

2. Describe the process of active transport in the root hair cells of plants.

3. Define the term saprotrophic nutrition.

4. Explain how water is transported from the soil to the leaves.

5. Plant roots obtain some of their mineral salts from the soil by active transport. What is involved in active transport?

6. Suggest why the number of cells levels out at Q.

7. How many pairs of chromosomes are there in a body cell of a human baby?

8. Describe how the movement of potassium ions into the guard cells causes the stoma to open.

9. Write a balanced chemical equation which represents the process of respiration in plants.

10. What is a pathogen?

11. Explain why using stem cells from the patients body is better than using stem cells from a different person.

12. A fertilised egg cell divides many times to form an embryo. Name this type of cell division.

13. How cell C is adapted for producing this enzyme.

14. Explain how Cell enlargement is part of the growth process of a baby.

15. What are stem cells?

16. What are prokaryotic cells?

17. A cook prepares a fresh fruit salad by cutting up a variety of fruits and placing them in a bowl with layers of sugar in between. After two hours the fruit is surrounded by syrup (concentrated sugar solution). Explain, as fully as you can, why syrup (concentrated sugar solution) was produced after two hours.

18. Suggest how the fibres lhelp in blood clot formation.

19. What is an invertebrate?

20. Suggest why it is ethically more acceptable to take stem cells from an umbilical cord instead of using stem cells from a 4-day-old embryo produced by In Vitro Fertilisation (IVF).

21. Give an example of a disease caused by bacteria.

22. Explain how the process of cell division by mitosis is part of the baby's growth process.

23. The cell cycle in an onion root tip cell takes 16 hours. Calculate the length of time Stage 2 lasts in a typical cell. Give your answer to 2 significant figures.

24. Is a virus a living organism?

25. Explain how root hair cells are adapted for efficient absorption of water.

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