Biology
Given along side is an experiment intended to demonstrate the action of diaphragm, but some thing has gone wrong.
What is the mistake in the diagram? Explain.
Answer
The mistake in the diagram is that the balloons are expanded and air is rushing in when the rubber sheet is pushed upwards. In the correct experiment, when the sheet is pushed upward, the volume is decreased, pressure inside the jar increases and balloons collapse due to air rushing out.
Related Questions
Mention any two points of difference in the quality of inspired and expired air.
Give reasons for:
- People climbing to high altitudes may suffer from dizziness and unsteady vision.
- Lime water is used in most experiments on respiration.
- Respiration rate is higher in animals than in plants.
During inspiration, the diaphragm
- Relaxes
- Contracts
- Expands
- Gets folded
The ultimate end parts of the respiratory system in humans are known as
- Alveoli
- Bronchioles
- Tracheoles
- Bronchi