An organism A which cannot move from one place to another, makes a simple food B from the substances C and D available in the environment. This food is made in the presence of a green coloured substance E present in organ F in the presence of light energy in a process called G. Some of the simple food B also gets converted into a complex food H for storage purposes. The food H gives a blue-black colour with dilute iodine solution.

(c) Name (i) green coloured substance E, and (ii) organ F.

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Solution

(i) The green-coloured substance E is chlorophyll.
(ii) Organ F is leaf.

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Q. An organism A which cannot move from one place to another, makes a simple food B from the substances C and D available in the environment. This food is made in the presence of a green coloured substance E present in organs F in the presence of light energy in a process called G. Some of the simple food B also gets converted into a complex food H for storage purposes. The food H gives a blue-black colour with dilute iodine solution.
(a) What is (i) organism A (ii) food B, and (iii) food H?
(b) What are C and D?
(c) Name (i) green coloured substance E, and (ii) organ F.
(d) What is the process G?

The organisms A, B and C can obtain their food in three different ways. Organism A derives its food from the body of another living organism which is called its D, without killing it. The organism B takes in the solid food by the process of ingestion, digests a part of this food and throws out undigested food in the process called E. The organism C obtains its food from dead and decaying plants.

(a) What is the mode of nutrition of (i) organism A (ii) organism B, and (iii) organism C?
(b) What is the organism like D called?
(c) Name the process E.
(d) Give one example each of organisms like (i) A (ii) B, and (ii) C.
(e) What is the general name of three modes of nutrition exhibited by organisms A, B and C?

Q. There are four organisms A, B, C and D. The organism A eats only the flesh of other animals as food. The organism B can eat grains, fruits and vegetables as well as meat and fish. The organism C can make the food itself from simple inorganic substances present in the environment by utilising sunlight energy. On the other hand, organism D eats only plants and their products as food.

(a) Which organism is (i) omnivore (ii) herbivore, and (ii) carnivore ?

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(i) The green-coloured substance E is chlorophyll. (ii) Organ F is leaf.

(i) The green-coloured substance E is chlorophyll.
(ii) Organ F is leaf.