Question

A. Choose the correct option for each of the following.
1. Chlorophyll-containing structures in a plant cell
(a) Stomata (b) Guard cells (c) Chloroplast (d) None of these
2. During photosynthesis, the stomata help in the intake of
(a) carbon dioxide (b) oxygen
(c) water
(d) nitrogen
3. Which of the following is an insectivorous plant?
(a) Cuscuta (b) Sundew
(c) Coralroot (d) Mistletoe
4. Rhizobium is
(a) a parasitic and nitrogen-fixing bacterium
(b) a non-symbiotic bacterium
(c) a symbiotic and nitrogen-fixing bacterium
(d) None of these
5. Chlorophyll helps the plants to
(a) exchange gases
(b) absorb water from the stem
(c) transport food from the leaves to the (d) absorb energy from the sunlight
other parts
B. Fill in the blanks using the correct words.
Plants that produce their own food are called
(autotrophs/heterotrophs)
2. Mistletoe is an example of a
(saprophyte/parasite)
3. Insectivorous plants are
(heterotrophs/autotrophs)
4. The food factories of the autotrophic plants are their
(leaves/
roots)
5. The food synthesized by the plants is stored as
(starch/
glucose)
c. State whether the following statements are true (T) or false (F).
1. A pitcher plant consumes insects as part of its nutrition.
2. Photosynthesis can take place without the presence of chlorophyll.
3. Saprotrophs obtain nutrients from dead and decaying matter.
4. Parasitic nutrition is not a mode of heterotrophic nutrition in plants.
5. The quantity of mineral nutrients in the soil remain the same even though
they are continuously used up by the plants.
1.​

Answer 1

Explanation:

A.

1. Stomata

2. Carbon dioxide

3. Cuscutta

4. A symbiotic and nitrogen-fixing bacterium

5. Absorbs energy from the sunlight

B.

1. Autotrophs

2. Parasite

3. Heterotrophs

4. Leaves

5. Starch

C.

1. True

2. False

3. True

4. False

5. True

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Answer 2

Answer:

1. c

2. a

3. a

4. d

5. glucose

fill in the blanks

1. autotrophs

2. saprophyte

3. heterotrophs

4. leaves

5. glucose

true false

1. True

2. false

3. true

4. false

5. false