Q47. Which of the following statements are correct regarding the general difference between plant and animal cells?
- Plant cells have cellulose cell walls whilst animal cells do not.
- Plant cells do not have plasma membranes, unlike animal cells which do.
- A mature plant cell has one large vacuole whilst an animal cell has many small vacuoles.
Select the correct answer using the code given below:
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Answer: C
- Statement 1 is correct: The plant cell wall is mainly composed of cellulose. Cellulose is a complex substance and provides structural strength to plants. Animal cells do not have cellulose.
- Statement 2 is not correct: Animal cells have centrioles which are absent in almost all plant cells. Both plant and animal cells have plasma membranes.
- Statement 3 is correct: Plant and animal cells are different as the former possess cell walls, chloroplasts, plastids and a large central vacuole which are absent in animal cells. It occupies more than 30%of the cell’s volume, and that can occupy as much as 80% of the volume for certain cell types and conditions. An animal cell has many small vacuoles.
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