Which physiological adaptation occurs in peop | vedclass

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Question

(B) At high altitudes,the atmospheric pressure is low,which results in low oxygen availability. To compensate for this,the human body undergoes physio

Vedclass · Accepted Answer

Increase in the production of red blood cells

Vedclass · Answer

(B) At high altitudes,the atmospheric pressure is low,which results in low oxygen availability. To compensate for this,the human body undergoes physiological adaptations: $1$. The body increases the production of red blood cells $(RBCs)$ to enhance the oxygen-carrying capacity of the blood. $2$. The binding affinity of hemoglobin for oxygen decreases to facilitate the release of oxygen into the tissues. $3$. The breathing rate increases to intake more air. Since the question asks for adaptations to survive low pressure,increasing $RBC$ production is a primary response. Option $A$ is incorrect because hemoglobin affinity actually decreases to release $O_2$ more effectively at tissues. Therefore,only $B$ is the correct physiological adaptation.

Column $I$	Column $II$
$(a)$ Pneumotaxic Centre	$(i)$ Alveoli
$(b)$ $O_{2}$ Dissociation curve	$(ii)$ Pons region of brain
$(c)$ Carbonic Anhydrase	$(iii)$ Haemoglobin
$(d)$ Primary site of exchange of gases	$(iv)$ $R.B.C.$

Which physiological adaptation occurs in people living at high altitudes to survive in low atmospheric pressure?

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Which of the following plants is able to show rolling of leaf during the middle of the day?

In which of the following plants are sunken stomata found?

Match the following columns and select the correct option:

Column $I$ Column $II$

$(a)$ Pneumotaxic Centre $(i)$ Alveoli

$(b)$ $O_{2}$ Dissociation curve $(ii)$ Pons region of brain

$(c)$ Carbonic Anhydrase $(iii)$ Haemoglobin

$(d)$ Primary site of exchange of gases $(iv)$ $R.B.C.$

In most of the thin-leaf mesophytes,the leaf stomata open during the day and close during the night. This pattern is known as:

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