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प्रश्न
A student has set up "CO2 is released during respiration”. After about 1 hour he observes no change in the water level in the delivery tube. Write two possible resons for the failure of the experiment.
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उत्तर
(i) The setup was not air tight
(ii) Geminating seeds were not moist
(iii) One end of U-shaped delivery tube is placed in conical flask and the other end was not immersed in the water of the beaker.
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संबंधित प्रश्न
Given below are the end products of different reactions involving glucose.
Write the reaction number in front of the following:
(i) Anaerobic reaction =
(ii) Reaction in the human muscles =
(iii) Aerobic respiration =
(iv) Reaction in the plant cells =
(v) Reaction in the liver
List the differences between aerobic and anaerobic respiration.
Explain why, when air is taken in and let out during breathing, the lungs always contain a residual volume of air.
Name the body structure concerned with the given functional activity:
Combines with the oxygen in the lungs.
Match the items in Column I with the ones most appropriate in Column II. Rewrite the matching pairs.
|
Column I |
Column II |
|
(a) Alveoli |
(i) where aerobic respiration takes place |
|
(b) Bronchioles |
(ii) lined with hair |
|
(c) Nasal Chamber |
(iii) diffusion of gases |
|
(d) Bronchi |
(iv) small air tubes |
|
(v) an inverted Y shaped tube |
|
|
(vi) a common passage for food and air |
How is the respiratory passage kept free of dust particles?
Rewrite the following statement by selecting the correct option.
During respiration, ____________ gas is given out.
Answer the following question.
How is O2 and CO2 transported in human beings?
During respiration exchange of gases take place in
How does aerobic respiration differ from anaerobic respiration?
