NCERT Grade 7-Nutrition in Plants-Questions – MySchoolPage

NCERT Grade 7-Nutrition in Plants-Questions

NCERT Solutions for Class 7 Science

Find 100% accurate solutions for NCERT Class VII Science. All questions have been explained and solved step-by-step, to help you understand thoroughly. Free Download option available!

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Nutrition in Plants

1.    Why do organisms need to take food?

2.    Distinguish between a parasite and saprophyte.

3.    How would you test the presence of starch in leaves?

4.    Give the brief description of the process of synthesis of food in green plants.

5.    Show with the help of a sketch that the plants are ultimate source of food.

6.    Fill in the blanks:

(a) Green plants are called ——- since they synthesize their own food.

(b) The food synthesized by the plants is stored as———-.

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

(d) During photosynthesis plants take in———- and release

7.    Name the following:

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

(b) A plant that has both autotrophic and heterotrophic mode of nutrtion.

(c) The pores through which leaves exchange gases.

8.    Tick the correct answer:

(a)  Amarbel is an example of :

(i) Autotroph

(ii) Parasite

(iii) Saprophyte

(iv) Host

(b)  The plant which traps and feeds on insects is:

(i) Cuscuta

(ii) China rose

(iii) Pitcher plant

(iv) Rose

9.   Match the item in given column I with those in column II.

Column I                                 Column II

Chlorophyll                             Bacteria

Nitrogen                                  Heterotrophs

Amarbel                                   Pitcher plant

Animals                                    Leaf

Insects                                      Parasite

10.  Mark “T” if the statement is true and “F” if it is false:

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

(ii) Plant which synthesis their food themselves are called saprotrophs. (T/F)

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

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

11.  Choose the correct option from the following:

Which part of plant gets carbon dioxide from the air for photosynthesis?

(i) Root hair

(ii) Stomata

(iii) Leaf veins

(iv) Sepals

12.  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.

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