Cell Structure Quiz
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5 questions, one answer each
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1. Which structure is found in plant cells but not in animal cells?
- A. Mitochondria
- B. Ribosomes
- C. Chloroplasts
- D. Cell membrane
2. What is the function of the flagellum in a bacterial cell?
- A. Storing genetic material
- B. Controlling substance movement in and out of the cell
- C. Enabling movement by rotating
- D. Producing proteins
3. A cell image is 60 mm wide on a page and shown at ×3000 magnification. What is its actual size?
- A. 20 μm
- B. 20 mm
- C. 0.02 μm
- D. 200 μm
4. Why do electron microscopes allow scientists to see more sub-cellular detail than light microscopes?
- A. They use light more efficiently
- B. They have higher magnification and resolution
- C. They require staining
- D. They are cheaper to use
5. A student wants to compare the number of chloroplasts across many plant cells in a field of view, but there are too many to count individually in the time available. What is the most appropriate approach, and why?
- A. Guess a number without any method, since precision isn't needed
- B. Count chloroplasts in a small sample area and estimate the total based on that sample
- C. Only count cells that are perfectly in focus and ignore the rest
- D. Avoid giving any figure since an exact count isn't possible