Class 7 lesson 1 important question

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.

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