Grade 8 Science: Growth and Repair
This worksheet covers key concepts in cell division, growth, and repair for Grade 8 science students.
Includes
Standards
Topics
Growth and Repair
Name:
Date:
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Read each question carefully and answer to the best of your ability. Some questions may require you to refer to diagrams or previous knowledge.
1. Which process is primarily responsible for the growth of multicellular organisms?
Meiosis
Photosynthesis
Mitosis
Respiration
2. What is the main function of cell division in the repair of damaged tissues?
To produce gametes
To replace dead or damaged cells
To generate energy
To facilitate digestion
3. The process by which cells grow and divide to form new cells is called .
4. During growth, organisms increase in size due to an increase in the number and of their cells.
5. Explain how cell division contributes to the repair of a skin wound.
6. All cells in an organism divide at the same rate.
True
False
7. Growth in multicellular organisms primarily involves an increase in cell size, not cell number.
True
False
Use the words below to complete the sentences.
8. During , a parent cell divides into two identical .
9. Before a cell divides, its genetic material, organized into , undergoes .
10. Observe the image below. This image represents a type of cell. Imagine this cell undergoes division. What are two key benefits of this cell division process for a living organism? (Image is a general representation of an animal cell from the provided illustrations.)
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