When CO _2 concentration in blood increases, breathing becomes :-

NEET 2004 Biology question

When concentration in blood increases, breathing becomes :-

(1)There is no effect on breathing
(2)Slow and deep
(3)Faster and deeperCorrect
(4)Shallower and slow

Answer: (3)

Solution

The respiratory rhythm centre in the medulla, with the chemosensitive area close to it, is highly sensitive to an increase in and hydrogen ions in the blood. A rise in stimulates this centre, which sends signals to increase the rate

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Question ID VK-089512