CLASS 7 SCIENCE CHAPTER 1 MCQ WITH ANSWER 1


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Question 1.
Fungi is a
(a) insectivore
(b) autotroph
(c) saprotroph
(d) parasite

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.
Which of the following is an insectivorous plant?
(a) Pitcher plant
(b) Cuscuta
(c) Algae
(d) Lichens

Answer

Answer: (a) Picher plants



Question 7.
Which of the following is a nutrient?
(a) Fats
(b) Vitamins
(c) Proteins
(d) All of these

Answer

Answer: (d) Allof these



Question 8.
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 9.
________ is essential for all living organisms.
(a) Protein
(b) Fat
(c) Food
(d) None of these

Answer

Answer: (c) Food



Question 10.
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 11.
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 12.
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



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.
The green pigment that is present in the leaves are called
(a) haemoglobin
(b) globulin
(c) albumin
(d) chlorophyll

Answer

Answer: (d) chlorophyll



Question 16.
Which one of the following is an autotroph?
(a) Lichens
(b) Algae
(c) Fungus
(d) Cuscuta

Answer

Answer: (b) Algae



Question 17.
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 18.
Which one of the following is a parasite?
(a) Lichens
(b) Algae
(c) Cuscuta
(d) Fungus

Answer

Answer: (c) Cuscuta



Question 19.
Which one of the following is an omnivorous organism?
(a) Lion
(b) Crow
(c) Horse
(d) Cow

Answer

Answer: (b) Crow



Question 20.
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 21.
Yeast, mushroom and bread-mould are
(a) autotrophic
(b) insectivorous
(c) saprophytic
(d) parasitic

Answer

Answer: (c) saprophytic



Question 22.
Pitcher plant is an example of
(a) autotroph
(b) heterotroph
(c) saprotroph
(d) partial heterotroph

Answer

Answer: (d) partial heterotroph



Question 23.
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 24.
Most of the plants are
(a) omnivores
(b) herbivores
(c) heterotrophs
(d) autotrophs

Answer

Answer: (d) autotropes



Question 25.
Plants take in carbon dioxide from the atmosphere generally through
(a) flowers
(b) stem
(c) root
(d) leaves

Answer

Answer: (d) leaves