Nutrition in Plants Class 7 MCQ Science Chapter 1

Class 7 Science Chapter 1 MCQ Nutrition in Plants

MCQ on Nutrition in Plants Class 7

Select and write the most appropriate option out of the four options given

I. Multiple Choice Questions

Question 1.
Which of the following is an autotrophic ?
A) Mushroom
B) Yeast
C) Pencillin
D) Blue-green algae
Answer:
D) Blue-green algae

Question 2.
Identify the saprophyte.
A) Cuscuta
B) Mango tree
C) Pitcher plant
D) Mushroom
Answer:
D) Mushroom

Question 3.
The mode of nutrition in which organisms make food themselves …………
A) Heterotrophic
B) Autotrophic
C) Parasitic
D) Saprotrophic
Answer:
B) Autotrophic

Question 4.
Chlorophyll is essential for …………
A) Release of CO₂
B) Absorbing CO₂
C) Absorbing water from roots
D) Trapping solar energy
Answer:
D) Trapping solar energy

Question 5.
Which of the following is a heterotroph ?
A) Dog
B) Cuscuta
C) Yeast
D) All the above
Answer:
D) All the above

Question 6.
Food factories of plants …………
A) Stem
B) Roots
C) Leaves
D) Bark
Answer:
C) Leaves

Question 7.
“Universal food providers” are ………… .
A) Green plants
B) Parasites
C) Saprotrophs
D) Heterotrophs
Answer:
A) Green plants

Question 8.
The colour of iodine in starch solution is …………
A) Brown
B) Greenish blue
C) Blue black
D) No change
Answer:
C) Blue black

Question 9.
Gaseous exchange in plants take place through …………
A) Stem
B) Stomata
C) Chloroplast
D) Roots
Answer:
B) Stomata

Question 10.
The opening and closing of stomata are controlled by …………
A) Lenticels
B) Synergids
C) guard cells
D) haustoria
Answer:
C) guard cells

Question 11.
The shape of the guard cells in stomata …………
A) bean shaped
B) horse – shoe shaped
C) semi-circular
D) round shaped
Answer:
A) bean shaped

Question 12.
The gases that are exchanged through stomata are …………
A) Oxygen
B) Carbondioxide
C) Nitrogen
D) A and B
Answer:
D) A and B

Question 13.
Which of the following present in the food of a plant …………
A) Starch
B) Fat
C) Protect
D) All the above
Answer:
D) All the above

Question 14.
Plants get minerals from …………
A) Soil
B) Air
C) Sunlight
D) All the above
Answer:
A) Soil

Question 15.
Which of the following is necessary for photosynthesis …………
A) CO₂
B) H₂O
C) Sunlight
D) All the above
Answer:
D) All the above

Question 16.
Cuscuta absorbs nutrients from …………
A) Soil
B) Air
C) Water
D) Host plant
Answer:
D) Host plant

Question 17.
Insectivorous plants grown on …………
A) Moist soils
B) Clay soils
C) Sandy soils
D) Nitrogen deficient soils
Answer:
D) Nitrogen deficient soils

Question 18.
Pitcher like structure in a pitcher plant is a modified …………
A) Stem
B) Leaf
C) Root
D) Bark
Answer:
B) Leaf

Question 19.
Photosynthetic stems are present in …………
A) Mango
B) Apple
C) Grapes
D) Cactus
Answer:
D) Cactus

Question 20.
“Symbiosis” is seen in …………
A) Lichens
B) Algae
C) Fungi
D) None
Answer:
A) Lichens

Question 21.
“Rhizobium” is present in root nodules of ………… .
A) Legume plants
B) Oil seed plants
C) Fibre yielding plants
D) None
Answer:
A) Legume plants

Question 22.
Rhizobium fixes atmospheric …………
A) Oxygen
B) Carbondioxide
C) Nitrogen
D) Xenon
Answer:
C) Nitrogen

Question 23.
Rhizobium gets food and shelter from ………… .
A) Legume plants
B) Soil
C) Air
D) Water
Answer:
A) Legume plants

Question 24.
Which of the following is a legume plant?
A) Beans
B) Peas
C) Black gram
D) All the above
Answer:
D) All the above

Question 25.
Which of the following is a useful fungus ………… ?
A) Yeast
B) Pencillin
C) Rhizopus
D) A and B
Answer:
D) A and B

Question 26.
Rhizopus is also known as …………
A) Bread mould
B) Fruit mould
C) Stem mould
D) None
Answer:
A) Bread mould

Question 27.

Identify the above shown plant …………
A) Sunflower plant
B) Pitcher plant
C) Cuscuta
D) Cactus
Answer:
B) Pitcher plant

Question 28.

This is an example for …………
A) Parasite
B) Saprotroph
C) Autotroph
D) None
Answer:
A) Parasite

Question 29.
In Lichens, algae provides …………
A) Water
B) Shelter
C) Food
D) Nutrients
Answer:
C) Food

Question 30.
Heterotrophs depends on ………… .
A) Plants
B) Animals
C) Both A and B
D) None
Answer:
C) Both A and B

Question 31.
In Photosynthesis, photo means ………… .
A) Sun light
B) Photograph
C) Water
D) Oxygen
Answer:
A) Sun light

Question 32.
In photosynthesis, which gas is evolved …………
A) Oxygen
B) Carbondioxide
C) Nitrogen
D) Xenon
Answer:
A) Oxygen

Question 33.
Which gas is utilised in photosynthesis ………… ?
A) Carbondioxide
B) Oxygen
C) Water vapour
D) Nitrogen
Answer:
A) Carbondioxide

Question 34.
Pitcher plant traps …………
A) Insects
B) Snakes
C) Birds
D) Frogs
Answer:
A) Insects

II. Fill in The Blanks

1. Plants get water from the ………… through their roots.
Answer: water

2. Respiratory organs in plants …………
Answer: stomata

3. All green plants are …………
Answer: Autotrophs

4. ………… pigment is present in green leaves.
Answer: Chlorophyll

5. Pitcher plant is an ………… plants.
Answer: insectivorous

6. All the organisms except plants are examples for …………
Answer: heterotrophs

7. If stomata of a leaf are closed with wax, what would happen …………
Answer: Exchange of gases wouldn’t take place

8. Spiny leaves are seen in ………… plants.
Answer: Desert

9. In desert plants, the surface area of the leaves are reduced to prevent ………… loss.
Answer: water

10. Mushroom grows on ………… and ………… matter.
Answer: Dead, decaying

11. Parasitic plant is …………
Answer: cuscuta

12. Symbiotic nitrogen fixing bacteria …………
Answer: Rhizobium

13. The organisms live together and share both shelter and nutrients, this relationship is known as …………
Answer: symbiosis

14. In lichens, fungus provides ………… to algae.
Answer: shelter, water and minerals

15. Can you identify this fungus …………

Answer: mushroom

16. Bread Mould is a …………
Answer: Fungus

17. The mode of nutrition in which organisms take in nutrients from dead and decaying matter is called …………
Answer: Saprophytic Nutrition

18. Slimy, green patches in ponds or stagnant water bodies are nothing but …………
Answer: algae

19. The plant on which cuscuta is climbing to get nutrients is …………
Answer: host

20. This, plant gets it’s nitrogenous materials from insects …………

Answer: insects

21. The ………… of a leaf forms a lid in pitcher plant.
Answer: Apex

22. Fungi are propagated through …………
Answer: spores

23. Examples for useful fungi are …………
Answer: yeast and pencillin

24. Fungi grow on …………
Answer: pickles, leather, clothes

25. The ultimate energy source for photosynthesis is …………
Answer: The Sun

III. True OR False

Identify the following statements whether True or False.

1. Mango tree is an example for heterotroph.
Answer: False. Mango tree is a autotroph

2. Cuscuta is a parasitic plant.
Answer: True

3. The end products of photosynthesis are glucose and carbondioxide.
Answer: False. The end products of photosynthesis are glucose oxygen and corbondioxide

4. Stomata are useful in exchange of respiratory gases in plants.
Answer: True

5. The green coloured pigment of the leaf is chlorophyll.
Answer: True

6. Mushroom is an edible fungi.
Answer: True

7. In Lichens, we can see the symbiotic association of algae and fungi.
Answer: True

8. Rhizoblum is a symbiotic nitrogen fixing bacteria present in all plants.
Answer: False. Rhizobium is a symbiotic bacteria present in root nodules of legume crops

9. In plants, the glucose produced in photosynthesis is converted into starch and is stored.
Answer: True

10. Saprotrophs feed on dead and decaying organic matter.
Answer: True

Class 7 Science MCQ