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Browse complete papersFollowing are some of the organisms in an ecosystem. Arrange them as a food chain.
I) Frog II) Grass III) Snake IV) Eagle V) Locust
II → I → III → IV → V
II → V → I → III → IV
IV → III → I → V → II
V → II → IV → III → I
Correct answer
II → I → III → IV → V
Snow-blindness is due to
Infrared rays
UV - A rays
UV - B rays
X - rays
Correct answer
Infrared rays
Pick up the mismatched pair
Coxal glands - Scorpions
Malpighian tubules - Insects
Nephridia - Prawns
Flame cells - Flatworms
Correct answer
Coxal glands - Scorpions
Match the following.
| List I (Chordate group) | List II (Example) | ||
|---|---|---|---|
| (a) | Fishes | (i) | Bungarus |
| (b) | Amphibia | (ii) | Camelus |
| (c) | Reptilia | (iii) | Labeo |
| (d) | Mammalia | (iv) | Passer |
| (v) | Bufo |
The correct answer is :
a-iii, b-v, c-i, d-ii
a-iv, b-v, c-i, d-ii
a-ii, b-i, c-v, d-iii
a-iii, b-iv, c-ii, d-i
Correct answer
a-iii, b-v, c-i, d-ii
Catalytic converters are used to
Control SO2 pollution
Control poisonous gases in automobile exhausts
Control particulates of exhausts of thermal power plants
Dispose hospital wastes
Correct answer
Control SO2 pollution
Polyembryony is common in
Banana
Tomato
Potato
Citrus
Correct answer
Banana
Match the following.
| List I (Alkaloid) | List II (Use) | ||
|---|---|---|---|
| (a) | Caffeine | (i) | Antiseptic |
| (b) | Nimbin | (ii) | Sedative |
| (c) | Scopolamine | (iii) | Excitation of nervous system |
| (d) | Pyrethroid | (iv) | Treatment of Malaria |
| (v) | Insecticide |
The correct answer is :
a-iii, b-i, c-ii, d-iv
a-v, b-ii, c-i, d-iii
a-iii, b-i, c-ii, d-v
a-i, b-iii, c-iv, d-ii
Correct answer
a-iii, b-i, c-ii, d-iv
Statement I : The NADH synthesised in glycolysis is transferred into the mitochondria and undergoes oxidative phosphorylation. '
Statement II : NADH is oxidised to NAD+ fastly in fermentation and slowly in aerobic respiration
Both statements I and II are true.
Both statements I and II are false.
Statement I is true, but statement II is false.
More than one of the above
None of the above
Correct answer
Both statements I and II are true.
Study the following statements and pick up the correct ones.
I) No energy expenditure takes place in diffusion.
II) In facilitated diffusion special proteins help to move substances across the membrane by utilising ATP.
III) In plants transport of materials over longer distances proceeds through the xylem and phloem and is called translocation.
IV) Facilitated diffusion is non specific for molecules to be transported.
I, II
II, IV
I, III
III, IV
Correct answer
I, II
Study the following and pick up the correct statements
I) A mycorrhiza is a symbiotic association of a fungus with a root system.
II) The water loss through the leaves of plants in its liquid phase is called guttation.
III) Transpiration occurs mainly through the stomata in the leaves.
IV) No energy is required for diffusion.
I only
I and II only
I, II and III only
I, II, III and IV
Correct answer
I only