Previous year MCQs

General science UPPSC 2023 GS-I
Question

Human heart is made up of how many chambers?

Answer & Solution

Answer: (Detailed Solution Below)

Option A: Only four

Detailed Solution:

The correct answer is “Only four”.
The human heart is made up of four chambers: two atria (upper chambers) and two ventricles (lower chambers). This structure is essential for effectively pumping blood throughout the body.
The right atrium receives deoxygenated blood from the body, and the left atrium receives oxygenated blood from the lungs. The right ventricle pumps deoxygenated blood to the lungs, and the left ventricle pumps oxygenated blood to the rest of the body.

Similar Questions:

Three communicable diseases prevalent in developing countries caused by unsafe drinking water and bad sanitation are:
  1. A) acute diarrhoea, cancer and gout
  2. B) malaria, acute diarrhoea and schistosomiasis
  3. C) onchocerciasis, leukaemia and arthritis
  4. D) rheumatism, malaria and AIDS
The formula of baking soda is:
  1. A) KHCO3
  2. B) Na2CO3
  3. C) K2CO3
  4. D) NaHCO3
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  4. D) Byte
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1. Scientific investigation depends on commitment to practical ideals.
2 Honesty is particularly important in science.

Select the correct answer from the codes given below:
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  2. B) Both statements 1 and 2 are incorrect
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List-I (molecules) - List-II (elements present)

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Code:
A B C D
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  3. C) 4 1 2 3
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Assertion (A): Space Based Solar Power (SBSP) is considered to be made a national goal.
Reason (R): Supply of SBSP is 99% uninterrupted throughout the year, besides the enormity of energy availability.

Select the correct answers from the codes given below:
Codes:
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  3. C) A is true, but R is false.
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