Nutrition in Plants short Q&A https://www.cbseguess.com/cbse-guide/cbse-guide-class-7/science-cbse/nutrition-in-plants3.php

1 vitamins and minerals are essential components of food, these components are called nutrients

Humans and animals are dependent directly or indirectly on plants for food

Nutrition is the mode of taking food by an organism and its utilisation by the body

Green plants are called autotrophs as they prepare their own food from simple substances

Animals and most other organisms are called heterotrophs as they take in ready-made food prepared by the plants

The synthesis of food in plants occurs in leavesPhotosynthesis can be carried out in presence of chlorophyll, sunlight, carbon dioxide, and water

Complex chemical substances like carbohydrates are the products of photosynthesis

Pitcher plants and Venus flytraps are insectivorous plantsFungi derive nutrition from dead and decaying matters they are called saprotrophs

Q1: Name some components of food.

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Q2: Define nutrients.

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Q3: Give an example of autotrophs.

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Q4: Give an example of heterotrophs.

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Q5: Plants prepare their food by using raw materials present in __________________.

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Q6: What do you mean by nutrition?

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Q7: Name the food factories of plants.

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Q8: Name the tiny pores present on the surface of leaves.

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Q9: Name the green pigment present in leaves.

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Q10: ____________ helps leaves to capture the energy of sunlight

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Q11: Why photosynthesis is named so?

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Q12: Sun is the ultimate source of energy for all living organisms. True / False

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Q13: Where does the nucleus of cell lies?

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Q14: State the equation for the process of photosynthesis.

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Q15: The nucleus in a cell is surrounded by a jelly like substance called ___________.

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Q16: Why algae present in stagnant water bodies are green in colour?

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Q17: Name a component of food other than carbohydrate synthesise by plants.

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Q18: Name some insectivorous plants.

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Q19: In saprotrophic mode of nutrition organisms take in nutrients fromOxygen maskWater maskPollution maskNone of these

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Q20: During photosynthesis plants take in _______________ and releases _______________.

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Q21: Some organisms live together and share shelter and nutrients, this type of relationship is called

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Q22: Lichen is a symbiotic association between __________ and fungi.

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Q23: Name the edible fungi.

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Q24: Name the organism responsible for converting atmospheric nitrogen into soluble forms.

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Q25: Where we can see Rhizobium bacteria?Dead matterDecaying matterBoth a and bNone of these

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Q26: Give an example of parasites.

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Q27: Give an example of saprotrophs.

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Q28: Amarbel is an example ofParasiteHostAutotrophsSaprotrophs

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Q29: Carbon dioxide is released during photosynthesis. True/ False.

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Q30: During photosynthesis solar energy is converted into chemical energy. True/ False.

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Q31: The product of photosynthesis isCarbohydrateProteinFatsAll of these

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Q32: Name a plant that has both autotrophic and heterotrophic mode of nutrition.

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Q33: Name a parasitic plant with yellow, slender and tubular type of stem.

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Q34: Name the pores present in leaves through which exchange of gas takes place.

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Q35: Animals are autotrophs. True/ False.

 

Q1:Differentiate between nutrients and nutrition.

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Q2:Differentiate between autotrophs and heterotrophs.

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Q3: Explain the food factory of plants.

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Q4: How do plants obtain raw materials from the surrounding?

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Q5: Draw a labelled diagram of cell showing nucleus and cytoplasm.

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Q6: How water and minerals are transported to leaves from roots?

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Q7: Define chlorophyll.

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Q8: Explain the role of chlorophyll in the process of photosynthesis.

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Q9: Define photosynthesis along with the equation for the same.

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Q10: Draw a labelled diagram showing the process of photosynthesis.

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Q11: Draw diagram of a leaf showing chlorophyll, and stomata in it.

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Q12: What is the function of stomata in leaf of a plant?

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Q13: Draw a diagram of stomata showing guard cells in it.

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Q14: How would you test the presence of starch in leaves?

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Q15: How humans and animals are directly or indirectly dependent on plants?

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Q16: Why do we need food?

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Q17: Whether food is made in all parts of a plant or only in certain parts? Explain.

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Q18: What is cell?

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Q19: What is the cell membrane?

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Q20: What are the main requirements of photosynthesis?

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Q21: Why colours of algae are green?

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Q22: What are the main components presents in carbohydrates?

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Q23: From where do the plants obtain nitrogen?

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Q24: What do you mean by parasitic nutrition?

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Q25: Define insectivorous plants along with examples.

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Q26: What is saprotrophic mode of nutrition?

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Q27: Explain the mode of nutrition in fungi?

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Q28: What do you understand by symbiotic relationship present in some organism?

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Q29: How nutrients are replenished in soil?

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Q30: What do you mean by Symbiosis?

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Q31: What is the role of leguminous plants in replenishing soil fertility?

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Q32: Distinguish between a parasite and a saprotrophs.

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Q33: Explain how Pitcher plants get their nutrition?

Q1:Sun is called the ultimate source of energy for all living organisms. Comments.

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Q2:Explain the two mode of nutrition in plants.