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Nutrition in Plants Class 7 MCQs Questions with Answers
I. Choose the correct option.
Fungi is a
Answer: (c) saprotroph
Human beings can be categorised as
Answer: (b) heterotrophs
Human beings get food from
(c) neither (a) or (b)
(d) both (a) and (b)
Answer: (d) both (a) and (b)
Parasites obtain their food from
(d) all of these
Answer: (d) all of these
Which part of plant is called food factory?
Answer: (c) Leaves
The green pigment that is present in the leaves are called
Answer: (d) chlorophyll
Which of the following is an insectivorous plant?
(a) Pitcher plant
Answer: (a) Pitcher plant
Which of the following is a nutrient?
(d) All of these
Answer: (d) All of these
The organisms which prepare their own food are known as
(d) none of these
Answer: (b) autotrophs
________ is essential for all living organisms.
(d) None of these
Answer: (c) Food
Photosynthesis will not occur in leaves in the absence of
(a) guard cells
(d) space between cells
Answer: (b) chlorophyll
The raw materials used for photosynthesis are:
(a) CO2, O2, H2
(b) CO2, water
(c) N2, water
(d) O2 water
Answer: (b) CO2, water
The process by which green plants prepare their own food in the presence of sunlight is called
(a) saprophytic nutrition
(c) cellular nutrition
Answer: (b) photosynthesis
Ultimate source of energy is
(a) chemical energy
(b) wind energy
(c) solar energy
(d) water energy
Answer: (c) solar energy
Which one of the following is an autotroph?
Answer: (b) Algae
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: (a) (i) and (iv)
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: (b) grows in soils which lacks nitrogen
Yeast, mushroom and bread-mould are
Answer: (c) saprophytic
Numerous small openings observed under the lower surface of a leaf through a magnifying lens are:
Answer: (a) stomata
When two organisms are good friends and live together and they benefit each other. Such an association of organisms is termed as
Answer: (d) symbiosis
II. Fill in the Blanks
Solar energy is stored in leaves with the help of …………………
All green plants are called …………………
Plants and animals which depend on others for their food are called …………………
The ………………… help in the opening and closing of the stomata.
Answer: guard cell
Plants can synthesise components of food other than carbohydrates such as ………………… and …………………
Answer: proteins, fats
In ………………… nutrition organisms prepare their food themselves.
During photosynthesis plants take in ………………… and release …………………
Answer: carbon dioxide, oxygen
The food that is synthesised by plant is stored as …………………
………………… plants traps insect and feed on them.
………………… feed on dead and decaying matters.
The organisms that provides nutrients to parasitic organisms are known as …………………
………………… are the components of food which are essential for any organism for growth and development.
………………… derives nutrients from other organisms without benefiting them.
………………… are tiny pores on the surface of leaves.
………………… is a symbiotic association between an alga and a fungus.
III. True or False
Green plants are autotrophs.
Oxygen is not released during photosynthesis.
Yeast and mushrooms are useful for us.
Food is essential for all living organisms.
The sun is the ultimate source of energy for all living beings.
The cell is enclosed by a thin outer boundary called cytoplasm.
The tiny pores on the leaves is called stomata.
Certain fungi lives in symbiotic association with the roots of trees.
Heterotrophs prepare their own food.
Water and minerals are transported to the leaves by the vessels which run like pipes throughout the plant.
The process by which plant prepare their own food with the help of sunlight is called photosynthesis.
In the absence of photosynthesis there would not be any food.
Solar energy is converted into chemical energy during photosynthesis.
Crop require a lot of carbohydrate to make protein.
Plants other than green do not contain chlorophyll.
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|
|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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