1. Nutrition in Plants | Science | NCERT | Class 7

The blog presents the objective Question and answers from the chapter NUTRITION in Plants from Science, NCERT of class 7. The students can use the study material for REFERENCE in their school studies and also for other COMPETITIVE exams.

Q6. Fill in the blanks:

(a) Green plants are called autotrophs since they synthesise their own food.

(b) The food synthesised by the plants is stored as starch.

(c) In photosynthesis solar energy is captured by the pigment called chlorophyll.

(d) During photosynthesis plants take in carbondioxide and release oxygen.

Q7. Name the following:

(a) A parasitic plant with yellow, slender and tubular stem : Cuscuta

(b) A plant that has both autotrophic and heterotrophic mode of nutrition : Pitcher plant

(c) The pores through which leaves exchange gases : Stomata

Q8. Tick the correct answer:

(a) Amarbel is an example of:
(i) autotroph
(ii) parasite
(iii) saprotroph
(iv) host

Ans. parasite

(b) The plant which traps and feeds on insects is:
(i) Cuscuta
(ii) china rose
(iii) pitcher plant
(iv) rose

Ans. pitcher plant

Q9. Match the items given in Column I with those in Column
II:

Ans.

Q10. Mark ‘T’ if the statement is true and ‘F’ if it is false:

(a) Carbon dioxide is released during photosynthesis. (T/F)

Ans. F

(b) Plants which synthesise their food themselves are called saprotrophs. (T/F)

Ans. F

(c) The product of photosynthesis is not a protein. (T/F)

Ans. T

(d) Solar energy is converted into chemical energy during photosynthesis. (T/F)

Ans. T

Q11. Choose the correct option from the following:
Which part of the plant takes in carbon dioxide from the air for photosynthesis?
(i) Root hair (ii) Stomata (iii) Leaf veins (iv) Sepals

Ans. Stomata

Q12. Choose the correct option from the following:
Plants take carbon dioxide from the atmosphere mainly through their:
(i) roots (ii) stem (iii) flowers (iv) leaves

Ans. leaves

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