Question

4. Pitcher plant traps insects because it

(a) is a heterotroph.

(b) grows in soils which lack in nitrogen.

(c) does not have chlorophyll.

(d) has a digestive system like human beings.

5. The term that is used for the mode of nutrition in yeast, mushroom and breadmould is

(a) autotrophic

(b) insectivorous

(c) saprophytic

(d) parasitic

6. When we observe the lower surface of a leaf through a magnifying lens we see

numerous small openings. Which of the following is the term given to such

openings?

(a) Stomata

(b) Lamina

(c) Midrib

(d) Veins

7. Two organisms are good friends and live together. One provides shelter,

water, and nutrients while the other prepares and provides food. Such an

association of organisms is termed as

(a) saprophyte

(b) parasite

(c) autotroph

(d) symbiosis

8. Which of the following raw material is available in the air for photosynthesis?

(a) Oxygen

(b) Carbon dioxide

(c) Nitrogen

(d) Hydrogen

9. Given below from (i) to (iv) are some food items.

(i) Boiled and mashed potato

(ii) Glucose solution

(iii) A slice of bread

(iv) Mustard oil

Which of the above will give blue-black colour when tested with iodine?

(a) (i) and (ii)

(b) (i) and (iii)

(c) (ii) and (iii)

(d) (iii) and (iv)​

Answer 1

Answer:1.d

2.c

3.d

4.b

5.b

6.c

Explanation:

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Answer 2

Answer:

C

b

a

C

a

b

a.

d

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