Level: JHS, Basic 8 | Subject: Integrated Science | Strand: Diversity of Matter | Topic: Living Cells
Read the summary notes first, then try these questions. Go back to the summary notes for this topic.
Part A has 20 tick-box questions. Part B has 5 essay questions with a marking guide at the bottom.
Test Yourself: 20 Objective Questions
Tick one answer for each question, then press Review answer. If your answer is wrong, it will be marked first, then the correct answer will show in green.
1. The process by which a cell divides to form new cells is called
2. The two types of cell division are
3. Mitosis produces
4. Meiosis produces
5. Mitosis takes place in
6. Meiosis takes place in the
7. A child grows taller mainly because of
8. A cut on the hand heals because
9. Human body cells contain 46 chromosomes. A human sperm cell contains
10. A fertilised egg (zygote) has 46 chromosomes because
11. Which of these is a difference between mitosis and meiosis?
12. How many divisions occur in meiosis?
13. The structures in the nucleus that carry hereditary information are
14. Cell division is important in living things because it helps in
15. Which of these is the correct order of the stages of mitosis?
16. During anaphase of mitosis, the chromosomes
17. In which stage do the chromosomes line up at the middle of the cell?
18. Plants grow taller at their tips because of
19. Which of these is NOT a result of mitosis?
20. A scientist observes stages of cell division best by using a
Essay Questions
- (a) What is cell division? (b) Name the two types of cell division. (4 marks)
- State four differences between mitosis and meiosis. (4 marks)
- Name the four stages of mitosis in the correct order and describe what happens in each. (8 marks)
- Explain three ways in which cell division is useful to living things. (3 marks)
- A human body cell has 46 chromosomes. State the number of chromosomes in (a) a sperm cell, (b) a zygote, and explain your answers. (3 marks)
Essay Questions: Marking Guide for Teachers and Parents
- (a) The process by which a cell divides to form new cells (2). (b) Mitosis (1) and meiosis (1).
- Any four (1 mark each): mitosis gives two cells, meiosis gives four; mitosis gives identical cells, meiosis gives different cells; mitosis keeps the chromosome number, meiosis halves it; mitosis has one division, meiosis has two; mitosis occurs in body cells, meiosis in sex organs; mitosis is for growth and repair, meiosis is for making sex cells.
- Prophase: chromosomes become visible and the nuclear membrane breaks down (2). Metaphase: chromosomes line up at the middle of the cell (2). Anaphase: chromosome copies are pulled to opposite ends (2). Telophase: two new nuclei form and the cell splits into two (2).
- Any three (1 mark each): growth, repair of wounds, replacement of old cells, reproduction through sex cells.
- (a) 23 chromosomes (1). (b) 46 chromosomes (1). Sex cells have half the number, and the sperm and egg join to restore it (1).
Education Always (education.inspiringalways.com). Original practice questions, not official WAEC or BECE questions.