Which of the following is a nutrient?
  • Protein
  • Fat
  • Vitamin
  • All of these
Human beings can be categorised as
  • heterotrophs
  • autotrophs
  • parasites
  • saprotrophs
The food making process in plants is called as
  • glycolysis
  • photosynthesis
  • photolysis
  • chemosynthesis
Which part of the plant is called its food factory ?
  • Fruits
  • Seeds
  • Leaves
  • Flowers
Tiny pores present on the surface of leaves through which gaseous exchange occurs are called
  • stomata
  • guard cells
  • food holes
  • gas holes
What is the ultimate source of energy for all living organisms?
  • Water energy
  • Wind energy
  • Solar energy
  • Chemical energy
Green pigment present in the leaves is called
  • haemoglobin
  • globulin
  • albumin
  • chlorophyll
During photosynthesis plants
  • take oxygen and release carbon dioxide
  • take carbon dioxide and release oxygen
  • take carbon dioxide but do not release oxygen
  • take oxygen but do not release carbon dioxide
The end products of photosynthesis are
  • carbohydrates, oxygen
  • carbohydrates, hydrogen
  • carbohydrates, water vapours
  • carbohydrates, oxygen and water vapours
Which one of the following is a parasite?
  • Lichen
  • Cuscuta
  • Pitcher plant
  • Rhizobium
Which of the following class of organisms belongs to saprotrophs?
  • Fungi
  • Algae
  • Lichens
  • Bryophytes
Which one of the following is a pair of symbiotic organisms?
  • Lichens
  • Rhizobium and a legume
  • None of these
  • Both (a) and (b)
Which of the following is an insectivorous plant?
  • Pitcher plant
  • Indian telegraph plant
  • 4 ‘O’clock plant
  • Cuscuta
The carbon dioxide gas enters the leaves of the plant through the _____ present on their surface.
  • Sepals
  • Leaf Veins
  • Stomata
  • xylem
The essential element used by the plants to make proteins and other compound is
  • Carbon
  • Calcium
  • Chlorine
  • Nitrogen
Cuscuta is an example of
  • Autotroph
  • Parasite
  • Saprotroph
  • Host
Match the column
class7-science-chapter-1-mcq-1.png
  • p -> ii, q -> iii, r -> i
  • p -> iii, q -> ii,r -> i
  • p -> ii, q -> i, r -> iii
  • p -> i,q -> ii, r -> iii
In the absence of which of the following will photosynthesis not occur in leaves?
  • Guard cells
  • Chlorophyll
  • Vacuole
  • Space between cells
which of these is not parasite
  • hookworms
  • leeches
  • amarbel
  • pitcher plant
which of the following is correct?
  • Alga is a parasite
  • Sun is the ultimate source of energy
  • Carbon dioxide is released in photosynthesis
  • Mushroom is a Autotroph
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