Glucose is not normally excreted in the urine because:
Glucose is used up by the metabolizing nephron units
Glucose cannot be filtered
Glucose is converted to ammonia and excreted as urea
All filtered glucose is reabsorbed
The Correct Answer is D
A. Glucose is used up by the metabolizing nephron units: Nephrons do not metabolize all glucose; their role is to filter and reabsorb.
B. Glucose cannot be filtered: Glucose is a small molecule and is easily filtered by the glomerulus.
C. Glucose is converted to ammonia and excreted as urea: This describes protein metabolism, not glucose.
D. All filtered glucose is reabsorbed: In healthy kidneys, 100% of filtered glucose is reabsorbed in the proximal tubule, so none appears in urine unless blood levels are too high (e.g., diabetes).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","D","E"]
Explanation
A. Producing glucagon: Glucagon is produced by the alpha cells of the pancreas, not the liver.
B. Synthesis of bile: The liver synthesizes bile, which is stored in the gallbladder and aids in fat digestion.
C. Metabolism of proteins, fats, carbohydrates: The liver plays a central role in metabolism, processing amino acids, lipids, and glucose.
D. Detoxifying drugs: The liver detoxifies substances, including medications and alcohol, converting them into less harmful forms.
E. Storage of fat-soluble vitamins: The liver stores vitamins A, D, E, and K, which are fat-soluble and essential for various functions.
Correct Answer is C
Explanation
A. Is called trypsin: Trypsin is a pancreatic enzyme, but it digests proteins, not fats.
B. Digests lipids to fatty acids and glycogen: Glycogen is related to carbohydrate storage, not a product of fat digestion.
C. Digests fats to fatty acids: Pancreatic lipase breaks down triglycerides into fatty acids and monoglycerides for absorption.
D. Is inactivated by bile: Bile actually emulsifies fats, making them more accessible to pancreatic lipase, not inactivating it.
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