1. The components that are necessary for our body are called

a) Vitamins

b) Pulses

c) Nutrients

d) Minerals


2. The mode of nutrition which organisms make their own food

a) Autotrophic nutrition

b) Heterotrophic nutrition

c) Saprotrophic nutrition

d) All of the above


3 Animals are ____________________

a) Predators

b) Symbiotic

c) Autotrophs

d) Heterotrophs


4. The bacterium which provides nitrogen to the leguminous plants is

a) Rhizobium

b) Yeast

c) Fungi

d) Lichens


5. Pitcher is an example of

a) Leguminous plant

b) Insectivorous plant

c) Algae

d) Fungi


6. The process by which a plant prepares its food, ‘Photosynthesis’, takes place in the

presence of

a) Moon light

b) Sunlight

c) Candle light

d) Bulb


7. ______________ gas is released by the plants in the process of ‘Photosynthesis’. a) Oxygen

b) Carbon dioxide

c) Nitrogen

d) Hydrogen


8. Green colour of the plant is due to the presence of

a) Oxygen
b) Carbon dioxide

c) Nitrogen

d) Chlorophyll


9. Chlorophyll helps the leaves to capture the energy from________________. a) Vitamins

b) Glucose

c) Sunlight

d) Nutrients


10. Mushroom is

a) An autotroph

b) Heterotroph

c) Saprotroph

d) Fungus


11. When we observe the lower surface of a leaf through a magnifying len, we see numerous small

openings. Which of the following is the term given to such openings?

a) Stomata

b) Lamina

c) Midrib

d) Veins


12. Which of the following statements is/are correct?

i. All green plants prepare their own food

ii. Most animals are autotrophs

iii. Photosynthesis requires carbon dioxide

iv. Oxygen is liberated during photosynthesis

Choose the correct answer from the options below:

a) (i) and (iv)

b) (ii) only

c) (ii) and (iii)

d) (i) and (ii)


13. Which of the following raw material is available in the air for Photosynthesis?

a) Oxygen

b) Carbon dioxide

c) Nitrogen

d) Hydrogen


14. In the absence of which of the following will photosynthesis not occur in leaves?

a) Guard cells

b) Chlorophyll

c) Vacuole

d) Space between cells


15. Which plant structure performs most of the photosynthesis for a plant?

a) Root

b) Stem

c) Leave

d) Flower

16. Some organisms live together, share shelter and nutrients. This is called _____________

a) Symbiotic relationship

b) Abiotic relationship

c) Mutual dependence

d) Parasitic nature


17. Slimy, green patches in ponds or in other stagnant water bodies are. a) Fungi

b) Algae

c) Tissues

d) Cells


18. The one that takes ready made food from the plant on which it is climbing

a) Host

b) Parasite

c) Insectivorous

d) Heterotroph


19. In plant cells nucleus is surrounded by a jelly-like substance called ______________

a) Cytoplasm. b) Water

c) Chlorophyll

d) All of the above


20. When _____________ plants are grown in the farm, farmers need not add nitrogen fertiliser to the soil

a) Insectivores

b) Parasites

c) Leguminous

d) Host​