UPSC Prelims 1996 · General Studies
Question 130: Science and Technology
Match List I (Physiological processes) with List II (Cell organelles) and select the correct answer by using the codes given below the lists: List I I. Photosynthesis II. Mineral uptake III. Respiration IV. Protein Synthesis List II A) Plasma membrane B) Chloroplast C) Mitochondria D) Ribosomes Codes:
AnswerThe answer is (c).
Photosynthesis takes place in chloroplasts; mineral uptake goes through the plasma membrane, which controls what enters the cell; respiration releases energy in mitochondria; and proteins are made on ribosomes. So I-B, II-A, III-C, IV-D. Remember: chloroplast - photosynthesis, mitochondria - respiration, ribosomes - protein synthesis.
- I. Photosynthesis - Chloroplast (B).
- II. Mineral uptake - Plasma membrane (A).
- III. Respiration - Mitochondria (C).
- IV. Protein synthesis - Ribosomes (D).
Why each option is right or wrong
- (a) Gives photosynthesis to the plasma membrane and mineral uptake to the chloroplast; both are swapped.
- (b) Swaps photosynthesis and mineral uptake, and respiration and protein synthesis.
- (c) Right: chloroplast, plasma membrane, mitochondria, ribosomes.
- (d) Gives respiration to ribosomes and protein synthesis to mitochondria; both are swapped.
Explanation: written by UPSC Grade, not by UPSC.
Source: UPSC, Civil Services (Preliminary) Examination 1996, General Studies. UPSC's own paper isn't online; the words are from a published compilation. The paper on upsc.gov.in.