EASY
7th CBSE
IMPORTANT
Earn 100
The table shows the chest measurement in four students during inhalation and exhalation.
Breathing
Chest measurement
------
Student 1
Student 2
Student 3
Student 4
Inhalation
62 cm
58 cm
60 cm
65 cm
Exhalation
45 cm
54 cm
55 cm
56 cm
What should be done to confirm the chest measurements of the four students?
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Important Questions on Respiration in Organisms
MEDIUM
7th CBSE
IMPORTANT
Which of these statements is correct for the respiratory system?
EASY
7th CBSE
IMPORTANT
In which beaker will the lime water turn milky first? Explain your answer.
MEDIUM
7th CBSE
IMPORTANT
Which of the following statements is not true about respiration?
HARD
7th CBSE
IMPORTANT
Assertion (A): Aerobic respiration requires less energy as compared to anaerobic respiration.
Reason (R): Mitochondria is the powerhouse of the cell.
MEDIUM
7th CBSE
IMPORTANT
The diagram below represents a magnified view of an air sac in the human lung. The white arrows indicate blood flow. Which two systems are interacting in this diagram.
HARD
7th CBSE
IMPORTANT
Which of the following pictures shows the process of inhalation?
MEDIUM
7th CBSE
IMPORTANT
When we pull the rubber downwards, the space inside the bottle _____.
MEDIUM
7th CBSE
IMPORTANT
Study the given set-up of an experiment. You will observe that
