Question 1.
Which of the following is a nutrient?
(a) Protein
(b) Fat
(c) Vitamin
(d) All of these
Answer: (d) All of these
Question 2.
Human beings can be categorised as
(a) heterotrophs
(b) autotrophs
(c) parasites
(d) saprotrophs
Answer: (a) heterotrophs
Question 3.
The food making process in plants is called as
(a) glycolysis
(b) photosynthesis
(c) photolysis
(d) chemosynthesis
Answer: (b) photosynthesis
Question 4.
Which part of the plant is called its food factory ?
(a) Fruits
(b) Seeds
(c) Leaves
(d) Flowers
Answer: (c) Leaves
Question 5.
Tiny pores present on the surface of leaves through which gaseous exchange occurs are called
(a) stomata
(b) guard cells
(c) food holes
(d) gas holes
Answer: (a) stomata
Question 6.
What is the ultimate source of energy for all living organisms?
(a) Water energy
(b) Wind energy
(c) Solar energy
(d) Chemical energy
Answer: (c) Solar energy
Question 7.
Green pigment present in the leaves is called
(a) haemoglobin
(b) globulin
(c) albumin
(d) chlorophyll
Answer: (d) chlorophyll
Question 8.
During photosynthesis plants
(a) take oxygen and release carbon dioxide
(b) take carbon dioxide and release oxygen
(c) take carbon dioxide but do not release oxygen
(d) take oxygen but do not release carbon dioxide
Answer: (b) take carbon dioxide and release oxygen
Question 9.
During photosynthesis
(а) solar energy is converted into chemical energy
(b) solar energy is converted into mechanical energy
(c) chemical energy is converted into mechanical energy
(d) bioenergy is converted into chemical energy
Answer: (а) solar energy is converted into chemical energy
Question 10.
The raw materials for photosynthesis are
(а) CO2
(b) CO2, O2, H2
(c) N2 water
(d) O2 water
Answer: (а) CO2
Question 11.
The end products of photosynthesis are
(a) carbohydrates, oxygen
(b) carbohydrates, hydrogen
(c) carbohydrates, water vapours
(d) carbohydrates, oxygen and water vapours
Answer: (a) carbohydrates, oxygen
Question 12.
Which one of the following is a parasite?
(a) Lichen
(b) Cuscuta
(c) Pitcher plant
(d) Rhizobium
Answer: (b) Cuscuta
Question 13.
Which of the following class of organisms belongs to saprotrophs?
(a) Fungi
(b) Algae
(c) Lichens
(d) Bryophytes
Answer: (a) Fungi
Question 14.
Which one of the following is a pair of symbiotic organisms?
(a) Lichens
(b) Rhizobium and a legume
(c) None of these
(d) Both (a) and (b)
Answer: (d) Both (a) and (b)
Question 15.
Which of the following is an insectivorous plant?
(a) Pitcher plant
(b) Indian telegraph plant
(c) 4 ‘O’clock plant
(d) Cuscuta
Answer: (a) Pitcher plant
Answer:
Plants absorb basic ingredients from their natural surroundings, such as minerals, CO2 (carbon dioxide), sunshine, and water, to grow their food. There are two basic modes of nutrition, that is autotrophic and heterotrophic.
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Answers & Comments
Verified answer
Question 1.
Which of the following is a nutrient?
(a) Protein
(b) Fat
(c) Vitamin
(d) All of these
Answer: (d) All of these
Question 2.
Human beings can be categorised as
(a) heterotrophs
(b) autotrophs
(c) parasites
(d) saprotrophs
Answer: (a) heterotrophs
Question 3.
The food making process in plants is called as
(a) glycolysis
(b) photosynthesis
(c) photolysis
(d) chemosynthesis
Answer: (b) photosynthesis
Question 4.
Which part of the plant is called its food factory ?
(a) Fruits
(b) Seeds
(c) Leaves
(d) Flowers
Answer: (c) Leaves
Question 5.
Tiny pores present on the surface of leaves through which gaseous exchange occurs are called
(a) stomata
(b) guard cells
(c) food holes
(d) gas holes
Answer: (a) stomata
Question 6.
What is the ultimate source of energy for all living organisms?
(a) Water energy
(b) Wind energy
(c) Solar energy
(d) Chemical energy
Answer: (c) Solar energy
Question 7.
Green pigment present in the leaves is called
(a) haemoglobin
(b) globulin
(c) albumin
(d) chlorophyll
Answer: (d) chlorophyll
Question 8.
During photosynthesis plants
(a) take oxygen and release carbon dioxide
(b) take carbon dioxide and release oxygen
(c) take carbon dioxide but do not release oxygen
(d) take oxygen but do not release carbon dioxide
Answer: (b) take carbon dioxide and release oxygen
Question 9.
During photosynthesis
(а) solar energy is converted into chemical energy
(b) solar energy is converted into mechanical energy
(c) chemical energy is converted into mechanical energy
(d) bioenergy is converted into chemical energy
Answer: (а) solar energy is converted into chemical energy
Question 10.
The raw materials for photosynthesis are
(а) CO2
(b) CO2, O2, H2
(c) N2 water
(d) O2 water
Answer: (а) CO2
Question 11.
The end products of photosynthesis are
(a) carbohydrates, oxygen
(b) carbohydrates, hydrogen
(c) carbohydrates, water vapours
(d) carbohydrates, oxygen and water vapours
Answer: (a) carbohydrates, oxygen
Question 12.
Which one of the following is a parasite?
(a) Lichen
(b) Cuscuta
(c) Pitcher plant
(d) Rhizobium
Answer: (b) Cuscuta
Question 13.
Which of the following class of organisms belongs to saprotrophs?
(a) Fungi
(b) Algae
(c) Lichens
(d) Bryophytes
Answer: (a) Fungi
Question 14.
Which one of the following is a pair of symbiotic organisms?
(a) Lichens
(b) Rhizobium and a legume
(c) None of these
(d) Both (a) and (b)
Answer: (d) Both (a) and (b)
Question 15.
Which of the following is an insectivorous plant?
(a) Pitcher plant
(b) Indian telegraph plant
(c) 4 ‘O’clock plant
(d) Cuscuta
Answer: (a) Pitcher plant
Answer:
Plants absorb basic ingredients from their natural surroundings, such as minerals, CO2 (carbon dioxide), sunshine, and water, to grow their food. There are two basic modes of nutrition, that is autotrophic and heterotrophic.