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Nutrition in plants

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

04/11/2024

Science

7th

Nutrition in plants

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) Petals

04/11/2024

Science

7th

Nutrition in plants

Mark ‘T’ if the statement is true and ‘F’ if it is false:
(i) Carbon dioxide is released during photosynthesis. (T/F)
(ii) Plants which synthesise their food 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)

04/11/2024

Science

7th

Nutrition in plants

Match the items given in Column I with those in Column II:
Column I Column II
Chlorophyll. Rhizobium
Nitrogen Heterotrophs
Cuscuta. . Pitcher plant
Animals Leaf
Insects Parasite

04/11/2024

Science

7th

Nutrition in plants

Tick the correct answer:
(a) Cuscuta is an example of:
(i) autotroph (ii) parasite (iii) saprotroph (iv) host
(b) The plant which traps and feeds on insects is:
(i) Cuscuta (ii) china rose (iv) pitcher plant (iv) rose

04/11/2024

Science

7th

Nutrition in plants

Name the following:
(i) A parasitic plant with yellow, slender and branched stem.
(ii) A plant that is partially autotrophic.
(iii) The pores through which leaves exchange gases.

04/11/2024

Science

7th

Nutrition in plants

Fill in the blanks:
(a) Green plants are called _________________ since they synthesise
their own food.
(b) The food synthesised by plants is stored as _________________.
(c) In photosynthesis solar energy is absorbed by the pigment called
___________.
(d) During photosynthesis plants take in ______________________ and
release __________________ gas.

04/11/2024

Science

7th

Nutrition in plants

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

04/11/2024

Science

7th

Nutrition in plants

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

04/11/2024

Science

7th

Nutrition in plants

How would you test the presence of starch in leaves?

04/11/2024

Science

7th