Biology Class 9 Chapter 8 Nutrition-2

Biology Class 9 Chapter 8 Nutrition-2

1. Which one of the following is the function of phosphorus in plants?

a) All of these
b) Component of ATP
c) Necessary for photosynthesis
d) Component of coenzymes

2. Sulphur is Not the component of?

a) ATP
b) Proteins
c) Vitamins
d) Enzymes

3. Which one of the following regulates the opening and closing of stomata in plants?

a) Potassium
b) Molybdenum
c) Boron
d) Copper

4. Plants that trap and digest small animals are called as?

a) Carnivorous
b) Herbivorous
c) Detritivorous
d) Omnivorous

5. Which one of the following is the component of enzyme that reduces nitrates to ammonia?

a) Molybdenum
b) Boron
c) Potassium
d) Carbon

6. Plants get nitrogen in the form of?

a) Nitrates
b) Molecular nitrogen
c) Nitrites
d) All of these

7. Nitrogen is a major component of?

a) All of these
b) Proteins
c) Hormones
d) Vitamins

8. Which one of the following is Not associated with the deficiency of nitrogen?

a) Delay fruiting
b) Yellowing of leaves
c) Stunted growth
d) Reduced yield

9. Magnesium is the structural component of?

a) Chlorophyll
b) ATP
c) ADP
d) AMP

10. Magnesium is used for?

a) All of these
b) Fruit formation
c) Nut formation
d) Seed germination

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