Question
Which of the following statements are correct regarding the general difference between plant and animal cells?
1. Plant cells have cellulose cell walls whilst animal cells do not.
2. Plant cells do not have plasma membrane unlike animal cells which do
3. Mature plant cell has one large vacuole whilst 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
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Explanation:
1. This statement is correct. Plant cells have a rigid cell wall composed primarily of cellulose, which provides structural support and protection for the cell. Animal cells, on the other hand, lack cell walls and are surrounded only by a plasma membrane.
2. This statement is incorrect. Both plant and animal cells have a plasma membrane, which surrounds and protects the cell. Plant cells have an additional outer layer called the cell wall, but they still have a plasma membrane as well.
3. This statement is correct. Mature plant cells typically have one large central vacuole that occupies a significant portion of the cell's volume. This vacuole serves various functions such as storage of water, nutrients, and waste products, as well as maintaining cell turgidity. In contrast, animal cells can have multiple smaller vacuoles, but they do not possess a single large vacuole like plant cells.