Previous year MCQs

General science UPPSC 1994 GS-I
Question

The substance which makes up about 80% of the living material in most organisms is:

Answer & Solution

Answer: (Detailed Solution Below)

Option A: Protein

Detailed Solution:

The correct answer is “Protein”.
Protein makes up a significant portion of the living material in most organisms, though water is actually the substance that constitutes about 70-80% of most living cells. If the question refers to a type of macromolecule, protein would be the most abundant.

However, if the question intended to refer to the most abundant substance overall, the answer would be water, not listed among the options.

Similar Questions:

Which of the following statements is correct regarding the Rajya Sabha?
  1. A) One-third of its members retire every two years
  2. B) One-half of its members retire every two years
  3. C) One-half of its members retire every three years
  4. D) One-third of its members retire every three years
Why does water boil at temperature below 100°C at higher altitudes?
  1. A) The atmospheric pressure decreases and hence boiling point is lowered
  2. B) The gravitational attraction is less
  3. C) Because of heavy winds in mountains
  4. D) None of the above is correct
Which of the following is a stem?
  1. A) Turnip
  2. B) Ginger
  3. C) Carrot
  4. D) Sweet potato
A cut diamond shines brilliantly due to:
  1. A) some inherent property
  2. B) total internal reflection
  3. C) its molecular structure
  4. D) absorption of light
The strategy adopted under I.R.D.P. in the Seventh Plan was:
  1. A) Adoption of total household approach
  2. B) Adoption of village approach
  3. C) Adoption of block approach
  4. D) Adoption of district approach
Which one of the following concerns soil?
  1. A) Edaphic
  2. B) Climatic
  3. C) Biotic
  4. D) Topography
The movement of nutrient elements through the various components of an ecosystem is called.
  1. A) Bio-geo-chemical cycle
  2. B) Bio-geological cycle
  3. C) Ecological succession
  4. D) Biological cycle
Liquid crystals are used in:
  1. A) Wrist watches
  2. B) Display devices
  3. C) Pocket calculators
  4. D) All the above
When was the agreement to dismantle "Medium Range Missiles" signed between President Reagan of U.S.A. and Soviet leader Mikhail Gorbachov?
  1. A) December, 1987
  2. B) January, 1988
  3. C) September, 1986
  4. D) October, 1987
The citizenship provided by the Constitution of India is:
  1. A) Dual citizenship
  2. B) Single citizenship
  3. C) Both of the above
  4. D) None of the above
The famous "Bubble Baby Disease" is so called because:
  1. A) It is caused by water dubbles
  2. B) The suffering baby makes bubbles of saliva
  3. C) The suffering baby is treated in a germ-free plastic bubble
  4. D) It is cured only water bubble
Consider the following statements associated with Chernobyl tragedy:

I. It is located in Siberia.
II. The tragedy killed 31 citizens and led to evacuations of lakhs of people.
III. It caused radiation sickness in several countries.
IV. It has forced some countries to decide for abandoning the nuclear power altogether.

Select the correct answer from the code given below:
  1. A) I only
  2. B) I, II and III
  3. C) II, III and IV
  4. D) I, II, III and IV