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Class 7 Science
Respiration In Organisms
Quiz 1
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Sometimes when we do heavy exercise, anaerobic respiration takes place in our muscle cells. What is produced during this process?
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alcohol and lactic acid
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alcohol and CO
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lactic acid and CO
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lactic acid only
Explanation
lactic acid only
Yeast is used in wine and beer industries because it respires.
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aerobically producing oxygen
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aerobically producing alcohol
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anaerobically producing alcohol
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anaerobically producing CO
Explanation
anaerobically producing alcohol
During the process of exhalation, the ribs move
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down and inwards
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up and inwards
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down and outwards
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up and outward
Explanation
down and inwards
Which are the gases involved in breathing?
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O and NO
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O and SO
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O and O
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O and CO
Explanation
O and CO
Name the organ of the body in which the blood is oxygenated.
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Heart
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Lungs
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Lever
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Pancreas
Explanation
Lungs
After heavy exercise, due to the accumulation of which substance we get muscle cramps ?
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Malaic acid
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Fumaric acid
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Lipoic acid
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Lactic acid
Explanation
Lactic acid
Yeasts are used in
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wine and beer industry
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bakery
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in both
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none of these
Explanation
wine and beer industry
In the following figure of respiratory system organs labelled by 1 and 2 are respectively:
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Tracheae, Lungs
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Lungs, Tracheae
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Nasal cavity, Lungs
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Lungs, Nasal cavity
Explanation
Tracheae, Lungs
Breathing rate in human beings in normal condition is
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12-15 times in a minute
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15-18 times in a minute
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18-22 times in a minute
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22-25 times in a minute
Explanation
15-18 times in a minute
which is of these animals can be breathe through lungs as well as skin
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Frog
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Fish
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crocodile
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earthworm
Match the column
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p ->iv, q ->iii, r ->ii, s- >i
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p ->ii, q ->iv, r ->i, s- >iii
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p ->i, q ->iii, r ->iv, s- >ii
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p ->iv, q ->iii, r ->i, s- >ii
During inhalation
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ribs move up and outwards and diaphragm moves down
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ribs move down and inwards, while diaphragm moves up
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ribs move lefts , while diaphragm moves right
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ribs move right , while diaphragm moves left
During Exhalation
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ribs move up and outwards and diaphragm moves down
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ribs move down and inwards, while diaphragm moves up
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ribs move lefts , while diaphragm moves right
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ribs move right , while diaphragm moves left
Yeast is used in wine and beer industries because it respires
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aerobically producing oxygen.
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aerobically producing alcohol.
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anaerobically producing alcohol.
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anaerobically producing CO2
The respiratory gases are
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oxygen and Nitrogen dioxide
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Oxygen and Carbon dioxide
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Carbon dioxide and Sulphur dioxide
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oxygen and ozone
The gaseous exchange during the respiration in animals happens in
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Bronchi
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trachea
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lungs
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Alveoli
What is the function of the hair in the nose?
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To secrete mucus.
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To trap dust particles.
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To protect the mucus glands.
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To prevent germs from entering the lungs.
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