Class 7 Exam > Class 7 Notes > Science Class 7 > Worksheet: Nutrition in Plants
Nutrition in Plants Class 7 Worksheet Science Chapter 1
Q.1. True/False
(i) The food synthesized by the plants is stored as starch.
(ii) Plants take carbon dioxide from the atmosphere mainly through their leaves.
(iii) Solar energy is converted into electrical energy during photosynthesis.
(iv) Carbon dioxide is released during photosynthesis.
(v) The starch is also a carbohydrate.
Q.2. Fill in the blanks.
(i) In photosynthesis solar energy is captured by the pigment called ____.
(ii) During photosynthesis plants take in ____ and release ____ .
(iii) ____ in plant take in carbon dioxide from the air for photosynthesis.
(iv) ____ are the products of photosynthesis.
(v) Solar energy is converted into ____ energy during photosynthesis.
Q.3. What are legume plants examples?
Q.4. From where do plants get raw materials to prepare their food?
Q.5. What is the ultimate source of energy for all living organisms?
Q.6. What are the components of food?
Q.7. What do you mean by nutrition?
Q.8. What are the different modes of nutrition found in plants?
Q.9. Why photosynthesis is named so?
Q.10. What are the other parts of plant where photosynthesis occurs except leaves?
Q.11. What are stomata?
Q.12. What is heterotrophic nutrition?
Q.13. What is chlorophyll?
Q.14. How do fungi grow and develop?
Q.15. What are the tiny openings on the surface of a leaf called?
Q.16. What are called parasites?
Q.17. Why can't humans or animals prepare their own food using CO2 water and minerals as the green plants do?
Q.18. What are algae?
Q.19. How fungus can be harmful and useful?
Q.20. Why do we boil the leaf in alcohol when we are testing it for starch?
You can find Worksheets Solutions here: Worksheet Solutions: Nutrition in Plants
The document Nutrition in Plants Class 7 Worksheet Science Chapter 1 is a part of the Class 7 Course Science Class 7.
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FAQs on Nutrition in Plants Class 7 Worksheet Science Chapter 1
| 1. What is nutrition in plants? |  |
Ans. Nutrition in plants refers to the process by which plants obtain and utilize essential nutrients for their growth and development. It involves the absorption of water, minerals, and gases, as well as the synthesis of organic compounds through photosynthesis.
| 2. How do plants obtain nutrients? | |
Ans. Plants obtain nutrients through their roots. The root hairs present on the surface of the roots absorb water and minerals from the soil. Additionally, plants also absorb carbon dioxide from the air and sunlight through their leaves, which is used for photosynthesis.
| 3. What are the essential nutrients required by plants? | |
Ans. Plants require several essential nutrients for their proper growth and development. These include macronutrients such as nitrogen, phosphorus, and potassium, as well as micronutrients like iron, manganese, and zinc. These nutrients are required in varying quantities and play crucial roles in various physiological processes of plants.
| 4. How does photosynthesis contribute to plant nutrition? | |
Ans. Photosynthesis is the process by which plants convert sunlight, water, and carbon dioxide into glucose and oxygen. Glucose serves as the primary source of energy for plants, while oxygen is released into the atmosphere. This process enables plants to synthesize organic compounds and produce their own food, thereby fulfilling their nutritional requirements.
| 5. What are the different types of nutrition in plants? | |
Ans. There are two main types of nutrition in plants: autotrophic nutrition and heterotrophic nutrition. Autotrophic nutrition is exhibited by green plants, algae, and some bacteria, where they can synthesize their own organic compounds through photosynthesis. Heterotrophic nutrition, on the other hand, is observed in non-green plants, fungi, and animals, where they obtain organic compounds by consuming other organisms.
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