Complete GATE XL 2020 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 61–63 of 125. Imported answers require review unless explicitly marked reviewed.

Paper practice 125 questionsPage 21 of 42

Question 16

Open question
XL-RMCQ2 marksNeeds review
Match the following alkaloids with their uses and source plants in CORRECT combination
Alkaloid | Use | Source plant P. Morphine | i. Anti-cancer | 1. Cinchona officinalis Q. Quinine | ii. Analgesic | 2. Catharanthus roseus R. Atropine | iii. Anti-cholinergic | 3. Papaver somniferum S. Vinblastine | iv. Anti-malarial | 4. Hyoscyamus niger
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Question 17

Open question
XL-RMCQ2 marksNeeds review
Match the following ecological terms with their appropriate definitions
Term | Definition P. Niche | i. Position of a species in food chain Q. Biota | ii. Place of a living organism in the biotic environment and its relates to food and enemies R. Trophic level | iii. Physical environment of an organism S. Habitat | iv. Totality of organisms (flora and fauna) in a given place or region
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Question 18

Open question
XL-RMCQ2 marksNeeds review
Arrange the following ‘water reservoirs of earth’ in decreasing order of water volume
P- Streams Q- Groundwater R- Glaciers S- Lakes and inland seas
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