Question

hey guys today's first question so please answer it correctly I really want ur help do don't spam please
how would u demonstrate that oxygen is used during aerobic respiration
for class 7 pls​

pls not from Google please​

Answer 1

Answer:

Aerobic respiration utilizes oxygen present in the cells. For example, If a person is performing strenuous physical activities, then the oxygen in the cells gets used up at a much faster rate, thereby, causing oxygen deficiency in the cells because almost entire oxygen was utilized.

Explanation:

Take a test tube and add about 10 ml of 10% glucose solution in it. Add a pinch of dry baker’s yeast into the glucose solution and cover the surface of the liquid carefully with an oily layer to prevent the contact with air. Fix a holed cork into the mouth of the test tube and pass a delivery tube through it. The other end of the delivery tube is dipped in lime water. The whole apparatus is made air tight. The test tube with glucose is kept in warm water (37oC – 40oC) in a beaker.

Hope this helps you

Answer 2

Answer:

Aerobic respiration utilizes oxygen present in the cells. For example, If a person is performing strenuous physical activities, then the oxygen in the cells gets used up at a much faster rate, thereby, causing oxygen deficiency in the cells because almost entire oxygen was utilized.

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