CBSE Class 7 Science Chapter 9 Nutrition in Animals Worksheet - Free Download

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Worksheet: Nutrition in Plants
Class 7 - Science
Name: Date:
Section A: Multiple Choice Questions (1 mark each)
1. Which pigment in leaves is responsible for trapping sunlight?
a) Hemoglobin
b) Chlorophyll
c) Xanthophyll
d) Cytoplasm
2. Which of the following is not autotrophic?
a) Mango tree
b) Cuscuta
c) Algae
d) Grass
3. Which bacterium helps in nitrogen fixation?
a) Lactobacillus
b) Rhizobium
c) Salmonella
d) E. coli
4. Plants that trap insects are called:
a) Parasites
b) Saprotrophs
c) Insectivorous
d) Decomposers
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Worksheet: Nutrition in Plants
Class 7 - Science
Name: Date:
Section A: Multiple Choice Questions (1 mark each)
1. Which pigment in leaves is responsible for trapping sunlight?
a) Hemoglobin
b) Chlorophyll
c) Xanthophyll
d) Cytoplasm
2. Which of the following is not autotrophic?
a) Mango tree
b) Cuscuta
c) Algae
d) Grass
3. Which bacterium helps in nitrogen fixation?
a) Lactobacillus
b) Rhizobium
c) Salmonella
d) E. coli
4. Plants that trap insects are called:
a) Parasites
b) Saprotrophs
c) Insectivorous
d) Decomposers
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Section B: Fill in the Blanks (1 mark each)
1. The process by which green plants make their own food is called .
2. Plants like are parasites and depend on other plants for food.
3. The green pigment present in leaves is called .
4. Fungiobtaintheirnutritionfromdeadanddecayingmatterandarecalled .
Section C: True or False (1 mark each)
1. Cuscuta is an example of an autotroph. (True / False)
2. Photosynthesis occurs only in roots. (True / False)
3. Rhizobium helps plants absorb nitrogen. (True / False)
4. Insectivorous plants get all their food from insects. (True / False)
Section D: Short Answer Questions (2 marks each)
1. What is the role of chlorophyll in photosynthesis?
2. Define parasitic nutrition with one example.
3. Why do farmers add nitrogenous fertilizers to the soil?
4. What is the role of Rhizobium bacteria in leguminous plants?
Section E: Long Answer Questions (3 marks each)
1. Describe the process of photosynthesis and list the raw materials required.
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Worksheet: Nutrition in Plants
Class 7 - Science
Name: Date:
Section A: Multiple Choice Questions (1 mark each)
1. Which pigment in leaves is responsible for trapping sunlight?
a) Hemoglobin
b) Chlorophyll
c) Xanthophyll
d) Cytoplasm
2. Which of the following is not autotrophic?
a) Mango tree
b) Cuscuta
c) Algae
d) Grass
3. Which bacterium helps in nitrogen fixation?
a) Lactobacillus
b) Rhizobium
c) Salmonella
d) E. coli
4. Plants that trap insects are called:
a) Parasites
b) Saprotrophs
c) Insectivorous
d) Decomposers
1
Section B: Fill in the Blanks (1 mark each)
1. The process by which green plants make their own food is called .
2. Plants like are parasites and depend on other plants for food.
3. The green pigment present in leaves is called .
4. Fungiobtaintheirnutritionfromdeadanddecayingmatterandarecalled .
Section C: True or False (1 mark each)
1. Cuscuta is an example of an autotroph. (True / False)
2. Photosynthesis occurs only in roots. (True / False)
3. Rhizobium helps plants absorb nitrogen. (True / False)
4. Insectivorous plants get all their food from insects. (True / False)
Section D: Short Answer Questions (2 marks each)
1. What is the role of chlorophyll in photosynthesis?
2. Define parasitic nutrition with one example.
3. Why do farmers add nitrogenous fertilizers to the soil?
4. What is the role of Rhizobium bacteria in leguminous plants?
Section E: Long Answer Questions (3 marks each)
1. Describe the process of photosynthesis and list the raw materials required.
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2. Explain the various modes of nutrition in plants with examples.
3. How do fungi obtain nutrients and how can we prevent fungal spoilage?
4. What is symbiosis? Explain with the example of lichens.
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