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4 questions · 2005 · answers as per the UPSC key

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UPSC 2005 · Q18 · Science & Technology › Biology · Save

What is the order of magnitude of electric resistance of the human body (dry)?

(a) 10² ohm
(b) 10⁴ ohm
(c) 10⁶ ohm
(d) 10⁸ ohm
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Answer: (b) 10⁴ ohm
UPSC 2005 · Q71 · Science & Technology › Biology · Save

Consider the following statements :

  1. During the process of osmosis, the solvent travels from the concentrated solution to the dilute solution.
  2. In the reverse osmosis, external pressure is applied to the dilute solution.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
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Answer: (d) Neither 1 nor 2
UPSC 2005 · Q85 · Science & Technology › Biology · Save

Assertion (A): All the proteins in our food are digested in small intestine only.

Reason (R): The protein-digesting enzymes from pancreas are released into small intestine.

(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
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Answer: (d) A is false but R is true
UPSC 2005 · Q86 · Science & Technology › Biology · Save

Assertion (A): Amoeba reproduces by fission.

Reason (R): All unicellular organisms reproduce by asexual methods.

(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
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Answer: (c) A is true but R is false