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Question-1
During respiration in humans, the exchange of gases takes place in:
(A)
Bronchi
(B)
Alveoli
(C)
Bronchioles
(D)
Trachea
Question-2
Which of the following does not have gills for breathing?
(A)
Prawn
(B)
Crab
(C)
Whale
(D)
Fish
Question-3
Which of the following is not a part of the human respiratory system?
(A)
Lungs
(B)
Oesophagus
(C)
Trachea
(D)
Diaphragm
Question-4
During heavy exercise, we get cramps in the legs due to the accumulation of:
(A)
Carbon dioxide
(B)
Lactic acid
(C)
Alcohol
(D)
Water
Question-5
Which of the following has haemoglobin- containing blood?
(A)
Grasshopper
(B)
Cockroach
(C)
Goose
(D)
Wasp
Question-6
During inhalation, the diaphragm:
(A)
Moves downwards
(B)
Moves upwards
(C)
Moves towards left
(D)
Moves towards right
Question-7
What is the normal range of 'breathing rate' of an average adult person during resting time?
(A)
9 to 12 per minute
(B)
15 to 18 per minute
(C)
21 to 24 per minute
(D)
30 to 33 per minute
Question-8
The animal which can breathe through the lungs as well as through skin is:
(A)
Fish
(B)
Dolphin
(C)
Frog
(D)
Crocodile
Question-9
Which of the following are the two steps in aerobic respiration?
A. Krebs' cycle
B. Fermentation
C. Oxidation
D. Glycolysis
(A)
A and B
(B)
B and C
(C)
C and D
(D)
A and D
Question-10
In cockroaches, air enters the body through:
(A)
Nostrils
(B)
Gills
(C)
Spiracles
(D)
Skin
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Std 7
CBSE
Practice in Related Chapters
Fibre to Fabric
Nutrition In Animals
Respiration in Organisms
Nutrition in Plants
Heat
Acids,Bases and Salts
Transportation in Animals and Plants
Physical and Chemical Changes
Weather Climate and Adaptations of Animals to Climate
Wind, Storms and Cyclones
Soil
Reproduction in Plants
Motion and Time
Electric Current and its Effects
Light
Water: A Precious Resource
Forests Our Life Line
Waste Water Story
Water and its Conservation
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