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Kidney is an excretory and regulatory organ. Which two of the following are regulated effectively by kidneys?
- a)CO2 and protein
- b)Sugar and O2
- c)Water and salts
- d)Water and fat
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Kidney is an excretory and regulatory organ. Which two of the followin...
Water & salts are regulated by kidneys .
~ Direct control of water excretion in the kidneys is exercised by vasopressin, or anti-diuretic hormone (ADH), a peptide hormone secreted by the hypothalamus.
~ ADH plays a role in lowering osmolarity (reducing sodium concentration) by increasing water reabsorption in the kidneys, thus helping to dilute bodily fluids.Sodium is by far the major solute in extracellular fluids, so it effectively determines the osmolarity of extracellular fluids .
~ Direct control of water excretion in the kidneys is exercised by vasopressin, or anti-diuretic hormone (ADH), a peptide hormone secreted by the hypothalamus.
~ ADH plays a role in lowering osmolarity (reducing sodium concentration) by increasing water reabsorption in the kidneys, thus helping to dilute bodily fluids.Sodium is by far the major solute in extracellular fluids, so it effectively determines the osmolarity of extracellular fluids .
Community Answer
Kidney is an excretory and regulatory organ. Which two of the followin...
Kidneys: Excretory and Regulatory Functions
The kidneys are vital organs in the human body, primarily responsible for the regulation of various substances, ensuring homeostasis. Among the options provided, the kidneys effectively regulate:
Water
- Fluid Balance: The kidneys control the volume of water in the body by adjusting urine output. This helps maintain blood pressure and overall hydration levels.
- Antidiuretic Hormone (ADH): When water levels are low, ADH is released, prompting the kidneys to reabsorb more water back into the bloodstream.
Salts
- Electrolyte Balance: The kidneys regulate the concentration of electrolytes, including sodium, potassium, and chloride, which are crucial for various bodily functions such as nerve transmission and muscle contraction.
- Homeostasis: By filtering excess salts and reabsorbing necessary ones, the kidneys ensure that electrolyte levels remain stable within the body.
Other Options Explained
- CO2 and Protein: While the kidneys are involved in the overall acid-base balance, CO2 regulation is primarily the function of the lungs. Protein levels are not directly regulated by the kidneys; rather, the kidneys filter waste products from protein metabolism.
- Sugar and O2: The kidneys do not primarily regulate sugar (glucose) levels; this is mainly managed by the liver and insulin. Oxygen levels are regulated through respiratory processes, not renal function.
- Water and Fat: Although water is regulated, fat metabolism is not directly influenced by the kidneys.
In summary, the kidneys play a crucial role in regulating water and salts, maintaining the body's internal environment effectively.
The kidneys are vital organs in the human body, primarily responsible for the regulation of various substances, ensuring homeostasis. Among the options provided, the kidneys effectively regulate:
Water
- Fluid Balance: The kidneys control the volume of water in the body by adjusting urine output. This helps maintain blood pressure and overall hydration levels.
- Antidiuretic Hormone (ADH): When water levels are low, ADH is released, prompting the kidneys to reabsorb more water back into the bloodstream.
Salts
- Electrolyte Balance: The kidneys regulate the concentration of electrolytes, including sodium, potassium, and chloride, which are crucial for various bodily functions such as nerve transmission and muscle contraction.
- Homeostasis: By filtering excess salts and reabsorbing necessary ones, the kidneys ensure that electrolyte levels remain stable within the body.
Other Options Explained
- CO2 and Protein: While the kidneys are involved in the overall acid-base balance, CO2 regulation is primarily the function of the lungs. Protein levels are not directly regulated by the kidneys; rather, the kidneys filter waste products from protein metabolism.
- Sugar and O2: The kidneys do not primarily regulate sugar (glucose) levels; this is mainly managed by the liver and insulin. Oxygen levels are regulated through respiratory processes, not renal function.
- Water and Fat: Although water is regulated, fat metabolism is not directly influenced by the kidneys.
In summary, the kidneys play a crucial role in regulating water and salts, maintaining the body's internal environment effectively.
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Kidney is an excretory and regulatory organ. Which two of the following are regulated effectively by kidneys?a)CO2and proteinb)Sugar and O2c)Water and saltsd)Water and fatCorrect answer is option 'C'. Can you explain this answer?
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