Match the statement in column A with those in column B. Column A Column B 1. Tiny pores in leaves (a) Leaf 2. Needed by plants to make food (b) Stomata 3. A plant's food factory (c) Water and Sunlight 4. Lives on other organisms and derive food from them (d) Symbiosis 5. Two different organisms living together and both are mutually benefited (e) Amarbel 6. Plants feeding on insects (f) Parasite 7. Parasitic plant with a yellow slender long tubular stem (g) Pitcher plant

1. - (b) Stomata are small pores generally located on the lower surface of leaves. Stomata are responsible for the exchange of gases with the atmosphere. 2. - (c) Plants need four raw materials to make food. These are water, sunlight, carbon dioxide gas, and chlorophyll. 3. (a) The process of photosynthesis mostly occurs in the leaves of the plant. That is why leaves are called the plant's food factory. 4. - (f) Organisms that live and derive food from other organisms are called parasitic organisms. The other organisms from which food is derived is called the host. 5. - (d) In symbiotic relations, usually, two different organisms live together and both benefit from the relation. An example is lichens, where fungal and algal partners live together for mutual benefit. Algal Component is autotrophic and produces food, while the fungal component provides shelter and water. 6. - (g) Some plants like pitcher plant (called insectivorous plants) are autotrophic, but to meet certain nutrient deficiency, i.e., mostly nitrogen deficiency, they feed on other organisms, usually insects. They are found in places where the soil nutrient value is less. 7- (e) The living organism that lives in or on other organisms and derives nutrition from it is called a parasite. Parasites that are completely dependent on the host for nutrition are called total parasites. It is a type of heterotrophic nutrition. Amarbel ( Cuscuta ) are total parasitic organisms (plants) that have long, yellowish, tubular structure turning around stem and branches of trees. Column A Column B 1. Tiny Pores in leaves (b) Stomata 2. Needed by plants to make food (c) Water and Sunlight 3. A plant's food factory (a) Leaf 4. Lives on other organisms and derive food from them (f) Parasite 5. Two different organisms living together and both are mutually benefited (d) Symbiosis 6. Plants feeding on insects (g) Pitcher plant 7. Parasitic plant with a yellow slender long tubular stem (e) Amarbel

Define the following term: Heterotrophic nutrition Enable Ginger Cannot connect to Ginger Check your internet connection or reload the browser Disable in this text field Edit Edit in Ginger Edit in Ginger ×

The type of nutrition in which energy is derived from the intake and digestion of other organisms is known as heterotrophic nutrition and the organisms are called heterotrophs. Heterotrophic organisms do not contain a green pigment called chlorophyll, so they cannot prepare their food through the process of photosynthesis.

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Learning Elementary Science for Class 7>Chapter 1 - Nutrition in Plants>EXERCISES>Q III

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Gaseous exchange in plants takes place through stomata.

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Important Questions on Nutrition in Plants

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Learning Elementary Science for Class 7>Chapter 1 - Nutrition in Plants>EXERCISES>Q IV

The pigment which gives green colour to leaves.

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Learning Elementary Science for Class 7>Chapter 1 - Nutrition in Plants>EXERCISES>Q IV

Name the gas used in photosynthesis.

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Learning Elementary Science for Class 7>Chapter 1 - Nutrition in Plants>EXERCISES>Q IV

The pores present on the surface of leaves.

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Learning Elementary Science for Class 7>Chapter 1 - Nutrition in Plants>EXERCISES>Q IV

The organism deriving its food from dead and decaying plants and animals.

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Learning Elementary Science for Class 7>Chapter 1 - Nutrition in Plants>EXERCISES>Q V

Match the statement in column A with those in column B.

Column A	Column B
1. Tiny pores in leaves	(a) Leaf
2. Needed by plants to make food	(b) Stomata
3. A plant's food factory	(c) Water and Sunlight
4. Lives on other organisms and derive food from them	(d) Symbiosis
5. Two different organisms living together and both are mutually benefited	(e) Amarbel
6. Plants feeding on insects	(f) Parasite
7. Parasitic plant with a yellow slender long tubular stem	(g) Pitcher plant