VSAQ for Chapter 10 Life Processes in Plant Class 7 Science NCERT
Important Questions1
Q1: Name some components of food.
Answer
Carbohydrates, proteins, fats, vitamins, and minerals.
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2
Q2: Define nutrients.
Answer
Carbohydrates, proteins, fats, vitamins, and minerals are essential components of food, these components are called nutrients.
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3
Q3: Give an example of autotrophs.
Answer
 All green plants.
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4
Q4: Give an example of heterotrophs.
Answer
Animals and human beings.
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5
Q5: Plants prepare their food by using raw materials present in their _________.
Answer
Surrounding.
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6
Q6: What do you mean by nutrition?
Answer
Nutrition is the mode of taking food by an organism and its utilization by the body.
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7
Q7: Name the food factories of plants.
Answer
Leaves.
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8
Q8: Name the tiny pores present on the surface of leaves.
Answer
Stomata.
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9
Q9: Name the green pigment present in leaves.
Answer
Chlorophyll.
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10
Q10: ____________ helps leaves to capture the energy of sunlight.
Answer
Chlorophyll.
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11
Q11: Why is photosynthesis named so?
Answer
Because the synthesis of food occurs in the presence of sunlight.
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12
Q12: Sun is the ultimate source of energy for all living organisms. True / False.
Answer
True.
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13
Q13: State the equation for the process of photosynthesis.
Answer
Carbon dioxide + water → carbohydrate + Oxygen (in the presence of sunlight).
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14
Q14: Why are algae present in stagnant water bodies green in color?
Answer
Because they contain the green pigment chlorophyll.
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15
Q15: During photosynthesis, plants take in ______ and release _______.
Answer
Carbon dioxide and oxygen.
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16
Q16: During photosynthesis solar energy is converted into chemical energy. True / False.
Answer
True.
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17
Q17: The product of photosynthesis is
a. Carbohydrate
b. Protein
c. Fats
d. All of these
a. Carbohydrate
b. Protein
c. Fats
d. All of these
Answer
a. Carbohydrate.
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18
Q18: Name a plant that has both autotrophic and heterotrophic modes of nutrition.
Answer
Insectivorous plants.
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19
Q19: Name the pores present in leaves through which exchange of gases takes place.
Answer
Stomata.
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20
Q20:What do plants need to grow?
Answer
Plants need sunlight, water, air, and nutrients to grow.
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21
Q21. How do plants make their own food?
Answer
Plants make food through photosynthesis.
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22
Q22. What is the role of sunlight in plant growth?
Answer
Sunlight provides energy for food production.
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23
Q23. What do roots absorb from the soil?
Answer
Roots absorb water and minerals.
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24
Q24. What gas do plants take from air during photosynthesis?
Answer
Plants take in carbon dioxide.
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25
Q25. Where does photosynthesis mainly take place?
Answer
Photosynthesis mainly takes place in leaves.
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