339768
Reabsorption of water in DCT and CT part of nephron is the function of
1 ANF
2 Angiostensin
3 Vasopressin
4 Renin
Explanation:
\(\mathrm{ADH} /\) Vasopressin facilitates water reabsorption from latter parts of the tubule i.e. DCT and CT thereby preventing diuresis.
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339769
Which of the following is most likely to cause an increase in the glomerular filtration rates?
1 Blockage of ureter
2 Dilation of the afferent arterioles
3 Release of renin from the juxtaglomerular apparatus
4 Volume depletion
Explanation:
A fall in glomerular blood flow/ glomerular blood pressure/GFR can activate the JG cells to release renin which converts angiotensinogen in blood to angiotensin I and further to angiotensin II. Angiotensin II, being a powerful vasoconstrictor, increases the glomerular blood pressure and thereby GFR.
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339770
Which one of the following is not a zymogen?
1 Trypsinogen
2 Pepsinogen
3 Angiotensin -II
4 Procollaginase
Explanation:
Inactive precursors of enzymes are known as proenzymes or zymogen granules. It undergoes a chemical change to get activated. Some examples are trypsinogen, pepsinogen, procollagenase but angiotensin II is not a proenzyme but it is a vasoconstrictor that regulates blood pressure.
NEET - 2016
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339771
ANF mechanism checks on
1 Oxytocin-renin mechanism
2 Counter-current mechanims
3 Renin-angiotensin mechanism
4 Oxytocin-angiotensin mechanism
Explanation:
Atrial Natriuretic Factor (ANF) is produced by atria of heart during increased blood pressure/volume. It is responsible for causing vasodilation and thereby, decreasing the blood pressure. A decrease in blood pressure/ volume stimulates the hypothalamus to release \(\mathrm{ADH}\) (Anti Diuretic hormone) as well as JGA (Juxta Glomerular Apparatus) cells to release renin. Renin by renin-angiotensin mechanism activates the adrenal cortex to release aldosterone. Therefore, ANF mechanism acts as a check on renin-angiotensin mechanism.
339768
Reabsorption of water in DCT and CT part of nephron is the function of
1 ANF
2 Angiostensin
3 Vasopressin
4 Renin
Explanation:
\(\mathrm{ADH} /\) Vasopressin facilitates water reabsorption from latter parts of the tubule i.e. DCT and CT thereby preventing diuresis.
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339769
Which of the following is most likely to cause an increase in the glomerular filtration rates?
1 Blockage of ureter
2 Dilation of the afferent arterioles
3 Release of renin from the juxtaglomerular apparatus
4 Volume depletion
Explanation:
A fall in glomerular blood flow/ glomerular blood pressure/GFR can activate the JG cells to release renin which converts angiotensinogen in blood to angiotensin I and further to angiotensin II. Angiotensin II, being a powerful vasoconstrictor, increases the glomerular blood pressure and thereby GFR.
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339770
Which one of the following is not a zymogen?
1 Trypsinogen
2 Pepsinogen
3 Angiotensin -II
4 Procollaginase
Explanation:
Inactive precursors of enzymes are known as proenzymes or zymogen granules. It undergoes a chemical change to get activated. Some examples are trypsinogen, pepsinogen, procollagenase but angiotensin II is not a proenzyme but it is a vasoconstrictor that regulates blood pressure.
NEET - 2016
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339771
ANF mechanism checks on
1 Oxytocin-renin mechanism
2 Counter-current mechanims
3 Renin-angiotensin mechanism
4 Oxytocin-angiotensin mechanism
Explanation:
Atrial Natriuretic Factor (ANF) is produced by atria of heart during increased blood pressure/volume. It is responsible for causing vasodilation and thereby, decreasing the blood pressure. A decrease in blood pressure/ volume stimulates the hypothalamus to release \(\mathrm{ADH}\) (Anti Diuretic hormone) as well as JGA (Juxta Glomerular Apparatus) cells to release renin. Renin by renin-angiotensin mechanism activates the adrenal cortex to release aldosterone. Therefore, ANF mechanism acts as a check on renin-angiotensin mechanism.
339768
Reabsorption of water in DCT and CT part of nephron is the function of
1 ANF
2 Angiostensin
3 Vasopressin
4 Renin
Explanation:
\(\mathrm{ADH} /\) Vasopressin facilitates water reabsorption from latter parts of the tubule i.e. DCT and CT thereby preventing diuresis.
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339769
Which of the following is most likely to cause an increase in the glomerular filtration rates?
1 Blockage of ureter
2 Dilation of the afferent arterioles
3 Release of renin from the juxtaglomerular apparatus
4 Volume depletion
Explanation:
A fall in glomerular blood flow/ glomerular blood pressure/GFR can activate the JG cells to release renin which converts angiotensinogen in blood to angiotensin I and further to angiotensin II. Angiotensin II, being a powerful vasoconstrictor, increases the glomerular blood pressure and thereby GFR.
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339770
Which one of the following is not a zymogen?
1 Trypsinogen
2 Pepsinogen
3 Angiotensin -II
4 Procollaginase
Explanation:
Inactive precursors of enzymes are known as proenzymes or zymogen granules. It undergoes a chemical change to get activated. Some examples are trypsinogen, pepsinogen, procollagenase but angiotensin II is not a proenzyme but it is a vasoconstrictor that regulates blood pressure.
NEET - 2016
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339771
ANF mechanism checks on
1 Oxytocin-renin mechanism
2 Counter-current mechanims
3 Renin-angiotensin mechanism
4 Oxytocin-angiotensin mechanism
Explanation:
Atrial Natriuretic Factor (ANF) is produced by atria of heart during increased blood pressure/volume. It is responsible for causing vasodilation and thereby, decreasing the blood pressure. A decrease in blood pressure/ volume stimulates the hypothalamus to release \(\mathrm{ADH}\) (Anti Diuretic hormone) as well as JGA (Juxta Glomerular Apparatus) cells to release renin. Renin by renin-angiotensin mechanism activates the adrenal cortex to release aldosterone. Therefore, ANF mechanism acts as a check on renin-angiotensin mechanism.
339768
Reabsorption of water in DCT and CT part of nephron is the function of
1 ANF
2 Angiostensin
3 Vasopressin
4 Renin
Explanation:
\(\mathrm{ADH} /\) Vasopressin facilitates water reabsorption from latter parts of the tubule i.e. DCT and CT thereby preventing diuresis.
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339769
Which of the following is most likely to cause an increase in the glomerular filtration rates?
1 Blockage of ureter
2 Dilation of the afferent arterioles
3 Release of renin from the juxtaglomerular apparatus
4 Volume depletion
Explanation:
A fall in glomerular blood flow/ glomerular blood pressure/GFR can activate the JG cells to release renin which converts angiotensinogen in blood to angiotensin I and further to angiotensin II. Angiotensin II, being a powerful vasoconstrictor, increases the glomerular blood pressure and thereby GFR.
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339770
Which one of the following is not a zymogen?
1 Trypsinogen
2 Pepsinogen
3 Angiotensin -II
4 Procollaginase
Explanation:
Inactive precursors of enzymes are known as proenzymes or zymogen granules. It undergoes a chemical change to get activated. Some examples are trypsinogen, pepsinogen, procollagenase but angiotensin II is not a proenzyme but it is a vasoconstrictor that regulates blood pressure.
NEET - 2016
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339771
ANF mechanism checks on
1 Oxytocin-renin mechanism
2 Counter-current mechanims
3 Renin-angiotensin mechanism
4 Oxytocin-angiotensin mechanism
Explanation:
Atrial Natriuretic Factor (ANF) is produced by atria of heart during increased blood pressure/volume. It is responsible for causing vasodilation and thereby, decreasing the blood pressure. A decrease in blood pressure/ volume stimulates the hypothalamus to release \(\mathrm{ADH}\) (Anti Diuretic hormone) as well as JGA (Juxta Glomerular Apparatus) cells to release renin. Renin by renin-angiotensin mechanism activates the adrenal cortex to release aldosterone. Therefore, ANF mechanism acts as a check on renin-angiotensin mechanism.
