Question

Experiments to show the mechanism of breathing. Bell jar experiment should be discussed. The comparison should be made with the human lungs and respiratory tract to show the mechanism of breathing.

Answer 1

Answer:

is simple Bell jar model lung can be used to demonstrate the basic principles of breathing. The model should be assembled as in the diagram. A swimming cap makes a suitable diaphragm. The cap can be attached to the bottom of the bell jar, and the balloons can be attached to the Y shaped tube, with elastic bands or plastic coated wire.

Bell jar model lung

How the Model Works Edit

The cavity inside the bell jar is airtight

As the diaphragm is pulled down, the volume of the cavity increases. This causes the pressure to fall. Air rushes in to equalise the pressure causing the balloons to inflate.

As the diaphragm is pushed up, the volume of the cavity decreases, the pressure rises, and the air rushes out of the balloons causing them to deflate.

This is a great project for classes studying health or for those students learning fluids in science.

The bell jar model helps children from all ages

Answer 2

The comparison should be made with the human lungs and respiratory tract to show the mechanism of breathing.

• "Breath" redirects here. For other uses, see Breath (disambiguation).
• For other uses, see Breathing (disambiguation).
• Real-time magnetic resonance imaging of the human thorax during breathing
• X-ray video of a female American alligator while breathing.
• Breathing (or ventilation) is the process of moving air out and in the lungs to facilitate gas exchange with the internal environment, mostly to flush out carbon dioxide and bring in oxygen.
• All aerobic creatures need oxygen for cellular respiration, which extracts energy from the reaction of oxygen with molecules derived from food and produces carbon dioxide as a waste product.
• Breathing, or "external respiration", brings air into the lungs where gas exchange takes place in the alveoli through diffusion.  
• The body's circulatory system transports these gases to and from the cells, where "cellular respiration" takes place.
• The process in which air moves in and out of the lungs is known as breathing.
• This is carried out through various respiratory organs.  
• In other words, breathing is a simple give and take process.
• When we breathe, we take in air rich in oxygen from the atmosphere, in return of which, we give out carbon dioxide-rich in the atmosphere which is utilized by the plants for photosynthesis.
• This is a continuous process and goes on throughout the life of an organism.  
• The process of taking in oxygen-rich air is called inhalation.