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Isotonic, Hypotonic Solutions, Hypertonic Solutions

Which of the ...

Question

Which of the following statements is incorrect about cell wall?

A

It is found in human cells.

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B

It is made up of cellulose.

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C

It is freely permeable.

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D

It provides rigidity and shape to cells.

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Solution

The correct option is A It is found in human cells.
Cell wall is the outermost layer which is found only in plants and bacterial cells. It is made up of cellulose. It allows free passage of substances across it. It provides shape, strength and rigidity to the cells.

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Similar questions

Statement 1: The cell wall is made up of cellulose.

Statement 2: It gives shape and rigidity to the cell.

Q. Mark the following statements 'true' or false. Rewrite the wrong ones correctly.
(a) All cells have nuclei.
(b) Chloroplasts are present in all plant cells.
(c) Animal cells usually do not have vacuoles.
(d) Animal and plant cells have cell membranes.
(e) Ribosomes are called 'suicide bags'.
(f) The cell wall is made of cellulose which is a living substance.
(g) The cell membrane is freely permeable to all substances.
(h) All living organisms are made up of cells.
(i) Structures present in the cell are called organs.
(j) Cell respiration takes place in mitochondria.

Q. Assertion :A cell wall is differentially permeable Reason: In plants, primary cell wall is made up of cellulose (

β

-D-glucose units), hemicellulose and pectin

The cell wall in plant cells provide rigidity. What is the cell wall made up of?

Q. Choose the correct statements.
(i) Cell wall is present in both plant and animal cells.
(ii) Cell membrane is present only in plant cells.
(iii) Cell membrane is semi permeable.
(iv) Cell wall is mainly composed of cellulose.

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