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Md. Siraj khan.
3.The residual volume is about the total volume of air around 1100 ml to 1200 ml residing in the lungs after the reserve volume is emitted or breathed out.
4.Assertion and reason are true and the reason is the correct explanation of assertion

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A.3Residual volume is the amount of gas leftnin the lungs at the end of a max exhalation

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Answer 2: lactic acid + energy
Answer 3: Residential volume is the air in lungs left after exhaling
Answer 4: Both assertion and reason are true and R is the correct explanation

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Md. Siraj khan
2.Lactic Acid

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A.2 Lactic acid + energy

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Md. Siraj Khan
deficiency of haemoglobin in the blood can affect the oxygen supplying capacity of the blood. This can lead to a deficiency of oxygen in the body cells

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1. Respiratory pigment is hemoglobin which has high level of oxygen. It is present in the red blood corpulses. If the body faces defiency of hemoglobin the person may deal with shortness of breath and irregular heart beat.
2. b) Lactic acid +energy
3. The residuel volume of air in lungs is about 1100 to 1200ml is inhaled or exhaled.
4.  a)
5. The wall of trachea does not collapse when there is air in it as the passage is lined with mucus and from there the air passes through the throat into the lungs. Rings of cartilage are present in the throat. These ensure that the air passage does not collapse
6.

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Ans 1)deficiency of haemiglobin  will lead to reduction in oxygen supply to our blood

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ANS 1.) Deficiency of heamoglobin will have have consequences directly affecting our oxygen supplying capacity of our blood to all the parts of the body and this can lead to deficiency of oxygen in the cells of our body which also can cause many diseases like Anaemia also.

ANS 2.)  (b.) Lactic acid + Energy

ANS 3.) During breathing cycle, when air is in and let out, the lungs always contain a residual volume of air so that there is sufficient time for oxygen to be absorbed and for the carbon dioxide to be released.

ANS 4.)  (a.) If both Assertion and Reason are true and Reason is the correct explanation of Assertion.

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1. Deficiency of haemoglobin can affect the oxygen supply capacity of the blood.
2.

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1.deficency of hemoglobin blood can affect the oxygen supplying capacity of the blood. This can lead to a defecency of oxygen in the blood cells

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Lack of haemoglobin affects the oxygen supply in our blood

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Deficiency of haemoglobin in your body can affect the oxygen supplying capacity of the blood

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1. It can cause deficiency of blood which leads to anaemia
2. lactic acid + energy
3. volume remaining in the lungs after maximum expansion
4.  A is True R is false
5. rings of cartilage help them to not collapse

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1. The respiratory problem can be developed from the deficiency of hemoglobin. Due to a low level of hemoglobin oxygen level decreases. The decrease in oxygen hampers the normal activity of muscle cells.
2. b) Lactic acid + Energy
3.Residual volume  is the volume of air remaining in the lungs after maximum forceful expiration.
4. a) If both Assertion and Reason are true, and Reason is the correct explanation of Assertion
5.The trachea is covered by incomplete C- shaped cartilaginous rings . The trachea is composed of about 20 rings of tough cartilage. The back part of each ring is made of muscle and connective tissue. This ring prevents trachea from collapsing when there is less air in it.
6.In humans, a pair of lungs are designed in such a way that they are lined by a thin membrane, the smaller tubes called bronchioles a balloon-like structure called alveoli and a network of blood capillaries increase the surface area for the exchange of gases.

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1. It would cause  anaemia.
2. Lactic Acid + Energy
3.

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Ans. 1 haemoglobin is the respiratory pigment that transports oxygen to the body cells for celluar respiration. therefore, deficiency og haemoglobin in the blood can affect the oxygen supplying capacity of the blood. this can lead to a deficiancy in oxygen in the body cells. it can also lead to a disease called anaemia.
Ans. 2 b) lactic acid + energy
Ans. 3 the residual volume is about the total volume of air residing in the lungs after the reverse volume is emitted or breathened out.
Ans. 4 assertion and reason are true, and reason is the correct explanation of assertion.