If haemoglobin becomes very low in blood, what will be the effect on cellular respiration?
Answer and explanation
Correct answer: Less oxygen will reach cells, so energy production may decrease
The governing concept is oxygen transport by haemoglobin. Haemoglobin in red blood cells binds oxygen in the lungs and carries it to tissues. Cellular aerobic respiration uses that oxygen to release energy from glucose. If haemoglobin levels fall greatly, the oxygen-carrying capacity of blood decreases, so cells may receive less oxygen and produce less energy aerobically. Therefore A is correct; the remaining choices involve starch, bile, or plant transport and are unrelated.
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What is the correct answer to this question?
Less oxygen will reach cells, so energy production may decrease
Why is this the correct answer?
The governing concept is oxygen transport by haemoglobin. Haemoglobin in red blood cells binds oxygen in the lungs and carries it to tissues. Cellular aerobic respiration uses that oxygen to release energy from glucose. If haemoglobin levels fall greatly, the oxygen-carrying capacity of blood decreases, so cells may receive less oxygen and produce less energy aerobically. Therefore A is correct; the remaining choices involve starch, bile, or plant transport and are unrelated.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Life Processes. Topic: Respiration.
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