At high altitudes,the number of red blood cells in humans:
- AIncreases
- BDecreases
- CDecreases in size
- DIncreases in size
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Similar Questions
During rest,the metabolic needs of the body are at their minimum. Which of the following is indicative of this situation?
Medium
View SolutionMatch 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 $(iv)$ $R.B.C.$
| 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 | $(iv)$ $R.B.C.$ |
Match Column-$I$ and Column-$II$ with respect to processes involved in respiration with their explanation:
Column-$I$ Column-$II$ $i$. Cellular respiration $a$. Exchange of gases $O_2$ and $CO_2$ between blood and tissue cells. $ii$. Breathing $b$. Physical process of gaseous exchange between atmospheric air and lungs. $iii$. Internal respiration $c$. Gaseous exchange between alveolar air and blood capillaries. $iv$. External respiration $d$. Food is oxidized and $ATP$ is generated.
| Column-$I$ | Column-$II$ |
| $i$. Cellular respiration | $a$. Exchange of gases $O_2$ and $CO_2$ between blood and tissue cells. |
| $ii$. Breathing | $b$. Physical process of gaseous exchange between atmospheric air and lungs. |
| $iii$. Internal respiration | $c$. Gaseous exchange between alveolar air and blood capillaries. |
| $iv$. External respiration | $d$. Food is oxidized and $ATP$ is generated. |
Find out the false statement.
Medium
View SolutionMatch List-$I$ with List-$II$. List-$I$ List-$II$ $A$. Emphysema $I$. Rapid spasms in muscle due to low $Ca^{++}$ in body fluid $B$. Angina Pectoris $II$. Damaged alveolar walls and decreased respiratory surface $C$. Glomerulonephritis $III$. Acute chest pain when not enough oxygen is reaching to heart muscle $D$. Tetany $IV$. Inflammation of glomeruli of kidney
Choose the correct answer from the options given below:
| List-$I$ | List-$II$ |
| $A$. Emphysema | $I$. Rapid spasms in muscle due to low $Ca^{++}$ in body fluid |
| $B$. Angina Pectoris | $II$. Damaged alveolar walls and decreased respiratory surface |
| $C$. Glomerulonephritis | $III$. Acute chest pain when not enough oxygen is reaching to heart muscle |
| $D$. Tetany | $IV$. Inflammation of glomeruli of kidney |
DifficultNEET 2025
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