Correct option is B
Ans. (b)
Sol. The
cell wall is
NOT a part of an animal cell. It is a rigid structure found in plant cells, fungi, and some bacteria, providing structural support and protection. Animal cells, in contrast, have only a
plasma membrane that encloses the cell and regulates the passage of substances.
Explanation of each option:
·
(a) Plasma membrane – Present in animal cells; it controls the entry and exit of substances.
·
(b) Cell wall –
Correct answer. Animal cells do not have a cell wall; instead, they have a flexible plasma membrane.
·
(c) Nucleus – Present in animal cells; it contains genetic material and controls cell functions.
·
(d) Cytoplasm – Present in animal cells; it is the fluid that fills the cell and houses organelles.
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