Which of the choices below describes the pathway of cellular respiration (the complete oxidation of glucose)?
lipolysis, glycogenolysis, beta oxidation
glycolysis, citric acid (Krebs) cycle, electron transport chain, oxidative phosphorylation
glycogenesis, lipogenesis, electron transport chain
gluconeogenesis, citric acid (Krebs) cycle, lipolysis
The Correct Answer is B
A. Lipolysis, glycogenolysis, beta oxidation: These refer to fat and glycogen metabolism, not the complete oxidation of glucose.
B. Glycolysis, citric acid (Krebs) cycle, electron transport chain, oxidative phosphorylation: This is the correct and complete pathway for glucose metabolism leading to ATP production.
C. Glycogenesis, lipogenesis, electron transport chain: Glycogenesis and lipogenesis are anabolic processes, not catabolic.
D. Gluconeogenesis, citric acid (Krebs) cycle, lipolysis: These are mixed pathways that do not directly represent glucose oxidation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Gastrin: G cells secrete gastrin, a hormone that stimulates parietal cells to produce hydrochloric acid and promotes gastric motility. It is released in response to food components like peptides, caffeine, and a rise in pH.
B. Pepsin: Pepsin is an enzyme that digests proteins, but it is secreted as pepsinogen by chief cells, not G cells.
C. Ghrelin: Ghrelin is a hunger-stimulating hormone, secreted primarily by cells in the stomach fundus, not by G cells.
D. Hydrochloric acid: Hydrochloric acid is secreted by parietal cells, not G cells.
Correct Answer is D
Explanation
A. Store fat-soluble vitamins: Hepatocytes store vitamins A, D, E, and K.
B. Detoxify toxic chemicals: Hepatocytes metabolize and detoxify substances like drugs and alcohol.
C. Process nutrients: They metabolize carbohydrates, lipids, and proteins, modifying absorbed nutrients.
D. Produce digestive enzymes: Hepatocytes do not produce digestive enzymes; that is the role of the pancreas and other gastrointestinal organs.
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