Question

select all that apply
which of the following are functions of the kidney?

filter blood to eliminate waste
produce insulin
secrete renin
maintain homeostasis

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Explanation:

• Filter blood to eliminate waste: Kidneys filter blood, removing waste products (like urea) and excess substances to form urine.
• Produce insulin: Insulin is produced by the pancreas, not the kidneys, so this is incorrect.
• Secrete renin: Kidneys secrete renin, an enzyme involved in blood pressure regulation and the renin - angiotensin - aldosterone system.
• Maintain homeostasis: Kidneys regulate blood volume, electrolyte balance (e.g., sodium, potassium), and pH, all of which are crucial for maintaining homeostasis.

Answer:

• Filter blood to eliminate waste
• Secrete renin
• Maintain homeostasis