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Class 7 Science
Nutrition In Plants
Quiz 1
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Which of the following is a nutrient?
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Protein
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Fat
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Vitamin
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All of these
Explanation
All of these
Human beings can be categorised as
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heterotrophs
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autotrophs
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parasites
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saprotrophs
Explanation
heterotrophs
The food making process in plants is called as
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glycolysis
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photosynthesis
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photolysis
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chemosynthesis
Explanation
photosynthesis
Which part of the plant is called its food factory ?
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Fruits
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Seeds
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Leaves
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Flowers
Explanation
Leaves
Tiny pores present on the surface of leaves through which gaseous exchange occurs are called
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stomata
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guard cells
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food holes
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gas holes
Explanation
stomata
What is the ultimate source of energy for all living organisms?
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Water energy
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Wind energy
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Solar energy
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Chemical energy
Explanation
Solar energy
Green pigment present in the leaves is called
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haemoglobin
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globulin
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albumin
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chlorophyll
Explanation
chlorophyll
During photosynthesis plants
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take oxygen and release carbon dioxide
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take carbon dioxide and release oxygen
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take carbon dioxide but do not release oxygen
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take oxygen but do not release carbon dioxide
Explanation
take carbon dioxide and release oxygen
The end products of photosynthesis are
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carbohydrates, oxygen
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carbohydrates, hydrogen
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carbohydrates, water vapours
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carbohydrates, oxygen and water vapours
Explanation
carbohydrates, oxygen
Which one of the following is a parasite?
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Lichen
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Cuscuta
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Pitcher plant
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Rhizobium
Explanation
Cuscuta
Which of the following class of organisms belongs to saprotrophs?
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Fungi
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Algae
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Lichens
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Bryophytes
Explanation
Fungi
Which one of the following is a pair of symbiotic organisms?
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Lichens
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Rhizobium and a legume
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None of these
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Both (a) and (b)
Explanation
Both (a) and (b)
Which of the following is an insectivorous plant?
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Pitcher plant
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Indian telegraph plant
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4 ‘O’clock plant
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Cuscuta
Explanation
Pitcher plant
The carbon dioxide gas enters the leaves of the plant through the _____ present on their surface.
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Sepals
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Leaf Veins
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Stomata
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xylem
The essential element used by the plants to make proteins and other compound is
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Carbon
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Calcium
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Chlorine
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Nitrogen
Cuscuta is an example of
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Autotroph
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Parasite
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Saprotroph
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Host
Match the column
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p -> ii, q -> iii, r -> i
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p -> iii, q -> ii,r -> i
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p -> ii, q -> i, r -> iii
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p -> i,q -> ii, r -> iii
In the absence of which of the following will photosynthesis not occur in leaves?
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Guard cells
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Chlorophyll
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Vacuole
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Space between cells
which of these is not parasite
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hookworms
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leeches
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amarbel
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pitcher plant
which of the following is correct?
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Alga is a parasite
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Sun is the ultimate source of energy
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Carbon dioxide is released in photosynthesis
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Mushroom is a Autotroph
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