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Q. No.Which nitrogenous waste has the highest solubility in water?
1.
Urea
2.
Uric acid
3.
Ammonia
4.
Creatinine
Subtopic: Nitrogenous Excretory Products |
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Consider the given two statements:
| Assertion (A): | Urea is the primary nitrogenous waste in humans. |
| Reason (R): | It is less toxic and more soluble in water compared to ammonia. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Nitrogenous Excretory Products |
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What is the working principle of hemodialysis?
| 1. | It uses active transport to remove waste products from the blood. |
| 2. | It uses a selectively permeable membrane to remove waste products from the blood by diffusion. |
| 3. | It directly removes waste from the kidneys. |
| 4. | It recycles red blood cells and plasma. |
Subtopic: CRF & Hemodialysis |
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Consider the given two statements:
| Assertion (A): | Being uricotelic is more advantageous than being ammonotelic. |
| Reason (R): | Uric acid is less toxic and requires less water for excretion compared to ammonia. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Nitrogenous Excretory Products |
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How does Atrial Natriuretic Factor (ANF) oppose the Renin-Angiotensin-Aldosterone System (RAAS)?
| 1. | ANF increases blood pressure and blood volume. |
| 2. | ANF causes vasodilation leading to decrease in blood pressure. |
| 3. | ANF increases the reabsorption of sodium in the distal convoluted tubule. |
| 4. | ANF promotes the secretion of renin from the kidneys. |
Subtopic: Osmoregulation |
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The role of other organs in excretion includes the skin, which:
1. Excretes excess water and salts.
2. Produces bile to aid in digestion.
3. Filters blood to remove urea.
4. Secretes hormones to regulate blood pressure.
1. Excretes excess water and salts.
2. Produces bile to aid in digestion.
3. Filters blood to remove urea.
4. Secretes hormones to regulate blood pressure.
Subtopic: Role of other Organs in Excretion |
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Cortical nephrons differ from juxtamedullary nephrons in that:
| 1. | Cortical nephrons are primarily involved in the filtration of blood. |
| 2. | Juxtamedullary nephrons have a longer loop of Henle that extends deep into the medulla. |
| 3. | Cortical nephrons are absent in mammals. |
| 4. | Juxtamedullary nephrons are not involved in the concentration of urine. |
Subtopic: Nephron Part 1 |
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Match the following excretory organs with the correct animal:
Codes:
| Column I | Column II | ||
| A | Kidneys | P | Humans |
| B | Malpighian tubules | Q | Birds |
| C | Green glands | R | Crabs |
| D | Cloaca | S | Insects |
| A | B | C | D | |
| 1. | P | R | S | Q |
| 2. | R | P | Q | S |
| 3. | P | S | R | Q |
| 4. | S | P | Q | R |
Subtopic: Nitrogenous Excretory Products |
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Consider the given two statements:
| Assertion (A): | Juxtamedullary nephrons are crucial for the process of urine concentration. |
| Reason (R): | They have longer loops of Henle, which extend deep into the medulla, allowing more effective water reabsorption. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Nephron Part 1 | Nephron Part 2 |
91%
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Consider the given two statements:
| Assertion (A): | Ammonia is considered to be a less toxic excretory product compared to urea and uric acid. |
| Reason (R): | Ammonia requires a large amount of water for its elimination due to its high solubility and toxic nature. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True and (R) does not correctly explain (A). |
| 3. | (A) is True, (R) is False. |
| 4. | (A) is False, (R) is True. |
Subtopic: Nitrogenous Excretory Products |
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