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Nutrition in Plants Class 7 MCQs Questions with Answers
I. Choose the correct option.
Question 1.
Fungi is a
(a) parasite
(b) autotroph
(c) saprotroph
(d) insectivore
Answer
Answer: (c) saprotroph
Question 2.
Human beings can be categorised as
(a) parasite
(b) heterotrophs
(c) saprotrophs
(d) autotrophs
Answer
Answer: (b) heterotrophs
Question 3.
Human beings get food from
(a) plants
(b) animals
(c) neither (a) or (b)
(d) both (a) and (b)
Answer
Answer: (d) both (a) and (b)
Question 4.
Parasites obtain their food from
(a) insects
(b) plants
(c) animals
(d) all of these
Answer
Answer: (d) all of these
Question 5.
Which part of plant is called food factory?
(a) Fruits
(b) Seeds
(c) Leaves
(d) Flowers
Answer
Answer: (c) Leaves
Question 6.
The green pigment that is present in the leaves are called
(a) haemoglobin
(b) globulin
(c) albumin
(d) chlorophyll
Answer
Answer: (d) chlorophyll
Question 7.
Which of the following is an insectivorous plant?
(a) Pitcher plant
(b) Cuscuta
(c) Algae
(d) Lichens
Answer
Answer: (a) Pitcher plant
Question 8.
Which of the following is a nutrient?
(a) Fats
(b) Vitamins
(c) Proteins
(d) All of these
Answer
Answer: (d) All of these
Question 9.
The organisms which prepare their own food are known as
(a) saprotrophs
(b) autotrophs
(c) heterotrophs
(d) none of these
Answer
Answer: (b) autotrophs
Question 10.
________ is essential for all living organisms.
(a) Protein
(b) Fat
(c) Food
(d) None of these
Answer
Answer: (c) Food
Question 11.
Photosynthesis will not occur in leaves in the absence of
(a) guard cells
(b) chlorophyll
(c) vacuole
(d) space between cells
Answer
Answer: (b) chlorophyll
Question 12.
The raw materials used for photosynthesis are:
(a) CO2, O2, H2
(b) CO2, water
(c) N2, water
(d) O2 water
Answer
Answer: (b) CO2, water
Question 13.
The process by which green plants prepare their own food in the presence of sunlight is called
(a) saprophytic nutrition
(b) photosynthesis
(c) cellular nutrition
(d) nutrition
Answer
Answer: (b) photosynthesis
Question 14.
Ultimate source of energy is
(a) chemical energy
(b) wind energy
(c) solar energy
(d) water energy
Answer
Answer: (c) solar energy
Question 15.
Which one of the following is an autotroph?
(a) Lichens
(b) Algae
(c) Fungus
(d) Cuscuta
Answer
Answer: (b) Algae
Question 16.
Which of the following statements is/are correct?
(i) All green plants can prepare their own food.
(ii) Most animals are autotrophs.
(iii) Carbon dioxide is not required for photosynthesis.
(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)
Answer
Answer: (a) (i) and (iv)
Question 17.
Pitcher plant traps insects because it
(a) is a heterotroph
(b) grows in soils which lacks nitrogen
(c) does not have chlorophyll
(d) has a digestive system like human beings
Answer
Answer: (b) grows in soils which lacks nitrogen
Question 18.
Yeast, mushroom and bread-mould are
(a) autotrophic
(b) insectivorous
(c) saprophytic
(d) parasitic
Answer
Answer: (c) saprophytic
Question 19.
Numerous small openings observed under the lower surface of a leaf through a magnifying lens are:
(a) stomata
(b) lamina
(c) midrib
(d) veins
Answer
Answer: (a) stomata
Question 20.
When two organisms are good friends and live together and they benefit each other. Such an association of organisms is termed as
(a) saprophyte
(b) parasite
(c) autotroph
(d) symbiosis
Answer
Answer: (d) symbiosis
II. Fill in the Blanks
Question 1.
Solar energy is stored in leaves with the help of …………………
Answer
Answer: chlorophyll
Question 2.
All green plants are called …………………
Answer
Answer: autotrophs
Question 3.
Plants and animals which depend on others for their food are called …………………
Answer
Answer: heterotrophs
Question 4.
The ………………… help in the opening and closing of the stomata.
Answer
Answer: guard cell
Question 5.
Plants can synthesise components of food other than carbohydrates such as ………………… and …………………
Answer
Answer: proteins, fats
Question 6.
In ………………… nutrition organisms prepare their food themselves.
Answer
Answer: autotrophic
Question 7.
During photosynthesis plants take in ………………… and release …………………
Answer
Answer: carbon dioxide, oxygen
Question 8.
The food that is synthesised by plant is stored as …………………
Answer
Answer: starch
Question 9.
………………… plants traps insect and feed on them.
Answer
Answer: Insectivorous
Question 10.
………………… feed on dead and decaying matters.
Answer
Answer: Saprotrophs
Question 11.
The organisms that provides nutrients to parasitic organisms are known as …………………
Answer
Answer: hosts
Question 12.
………………… are the components of food which are essential for any organism for growth and development.
Answer
Answer: Nutrients
Question 13.
………………… derives nutrients from other organisms without benefiting them.
Answer
Answer: Parasites
Question 14.
………………… are tiny pores on the surface of leaves.
Answer
Answer: Stomata
Question 15.
………………… is a symbiotic association between an alga and a fungus.
Answer
Answer: Lichen
III. True or False
Question 1.
Green plants are autotrophs.
Answer
Answer: True
Question 2.
Oxygen is not released during photosynthesis.
Answer
Answer: False
Question 3.
Yeast and mushrooms are useful for us.
Answer
Answer: True
Question 4.
Food is essential for all living organisms.
Answer
Answer: True
Question 5.
The sun is the ultimate source of energy for all living beings.
Answer
Answer: True
Question 6.
The cell is enclosed by a thin outer boundary called cytoplasm.
Answer
Answer: False
Question 7.
The tiny pores on the leaves is called stomata.
Answer
Answer: True
Question 8.
Certain fungi lives in symbiotic association with the roots of trees.
Answer
Answer: True
Question 9.
Heterotrophs prepare their own food.
Answer
Answer: False
Question 10.
Water and minerals are transported to the leaves by the vessels which run like pipes throughout the plant.
Answer
Answer: True
Question 11.
The process by which plant prepare their own food with the help of sunlight is called photosynthesis.
Answer
Answer: True
Question 12.
In the absence of photosynthesis there would not be any food.
Answer
Answer: True
Question 13.
Solar energy is converted into chemical energy during photosynthesis.
Answer
Answer: True
Question 14.
Crop require a lot of carbohydrate to make protein.
Answer
Answer: False
Question 15.
Plants other than green do not contain chlorophyll.
Answer
Answer: False
IV. Match the Following
| Column I | Column II |
| 1. Parasite | (a) green pigment in leaves |
| 2. Autotrophs | (b) proteins, vitamins, fats, etc. |
| 3. Chlorophyll | (c) prepare their own food |
| 4. Stomata | (d) depends on host |
| 5. Nutrients | (e) tiny pores on leaves |
| 6. Heterotrophs | (f) food factory |
| 7. Leaves | (g) parasitic plant |
| 8. Saprotrophs | (h) Rhizobium |
| 9. Nitrogen fixation | (i) depends on other for food |
| 10. Dodder | (j) dead and decaying matters |
Answer
Answer:
| Column I | Column II |
| 1. Parasite | (d) depends on host |
| 2. Autotrophs | (c) prepare their own food |
| 3. Chlorophyll | (a) green pigment in leaves |
| 4. Stomata | (e) tiny pores on leaves |
| 5. Nutrients | (b) proteins, vitamins, fats, etc. |
| 6. Heterotrophs | (i) depends on other for food |
| 7. Leaves | (f) food factory |
| 8. Saprotrophs | (j) dead and decaying matters |
| 9. Nitrogen fixation | (h) Rhizobium |
| 10. Dodder | (g) parasitic plant |
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