Which of the following word best describes the function of the urinary bladder?
Storage
Filtration
Reabsorption
Buffering of H+
The Correct Answer is A
A. Storage: The urinary bladder’s primary function is to store urine until it is excreted during urination.
B. Filtration: Filtration occurs in the glomeruli of the kidneys, not in the bladder.
C. Reabsorption: Reabsorption happens in the renal tubules after filtration in the kidneys.
D. Buffering of H+: Buffering of hydrogen ions occurs in the kidneys and blood, not in the bladder.
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Related Questions
Correct Answer is B
Explanation
A. Stores undigested pieces of food: The stomach, not the esophagus, is responsible for storing food temporarily.
B. Transports food from the pharynx to the stomach: The esophagus is a muscular tube that uses peristalsis to move food from the pharynx to the stomach.
C. Absorbs nutrients: Nutrient absorption occurs mainly in the small intestine, not the esophagus.
D. Breaks down proteins: Protein digestion begins in the stomach via pepsin, not in the esophagus.
Correct Answer is D
Explanation
A. Causes Na⁺ excretion: Aldosterone promotes sodium reabsorption, not excretion, to increase blood volume and pressure.
B. Depletes blood volume: Aldosterone increases blood volume by retaining sodium and water.
C. Causes K⁺ reabsorption: Aldosterone promotes potassium excretion, not reabsorption.
D. Causes Na⁺ and water reabsorption: Aldosterone acts on the renal tubules to reabsorb sodium, which draws water back into circulation, increasing blood volume.
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