16 Questions
What is the primary method of transferring heat via infrared waves?
Radiation
Which nutrient category requires the most energy to break down?
Proteins
What percentage of heat is lost through convection?
15%
Which vitamin category includes vitamins A, D, E, and K?
Fat soluble
What is the primary method of transferring heat by evaporating water?
Evaporation
What is the main component of energy expenditure at rest, in a neutral environment, and in the postabsorptive state?
Basal Metabolic Rate (BMR)
Which macronutrient is broken down to form glucose, the most common fuel for ATP production?
Carbohydrates
What happens in lipolysis?
Triglycerides are broken down into fatty acids and glycerol
Which hormone stimulates the release of pancreatic lipase and bile salts in lipid metabolism?
Cholecystokinin (CCK)
What is the function of NADH and FADH2 in metabolism?
Pass electrons to the electron transport chain for more ATP production
Which metabolic state is characterized by glycogen breakdown after food has been stored?
Postabsorptive state
What happens during gluconeogenesis?
Glucose is made in the liver from various molecules like pyruvate or lactate
'Electron donors' in the electron transport chain refer to molecules that:
Pass electrons to NADH and FADH2
What is the primary energy source in the body after several days of starvation?
Ketone bodies
Which hormone causes glucose to be stored and stimulates protein synthesis in the body's absorptive state?
Insulin
What is the function of acetyl CoA in the Krebs cycle?
Combines with oxaloacetate to form citric acid
Test your knowledge on the basic concepts of metabolic reactions including catabolic and anabolic processes, energy storage, and ATP production. Learn about the breakdown and synthesis of molecules for energy regulation.
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