16 Questions
What percentage of the energy used during ATP production is converted into heat?
60%
What is the thermoneutral temperature for a naked human?
84 degrees
Which mode of heat transfer accounts for the largest percentage of heat loss from the body?
Radiation
What percentage of the body's energy expenditure is attributed to thermoregulation?
10%
Which macronutrient requires the most energy to break down?
Proteins
Which of the following is a water-soluble vitamin?
Vitamin B
Which of the following best describes the role of ATP in metabolic reactions?
ATP is produced during catabolic reactions and consumed during anabolic reactions.
What is the primary fate of pyruvate molecules produced during glycolysis under aerobic conditions?
Pyruvate enters the Krebs cycle after being converted to acetyl CoA.
Which of the following is NOT a direct product of the Krebs cycle?
Carbon dioxide
What is the primary role of the electron transport chain (ETC) in cellular respiration?
To generate ATP through the process of oxidative phosphorylation.
Which of the following hormones is primarily involved in promoting catabolic reactions?
Glucagon
In the process of gluconeogenesis, which of the following molecules can be used as a precursor for glucose synthesis?
All of the above
Which of the following statements about redox reactions is NOT true?
Redox reactions always involve the formation of ATP.
During aerobic respiration, what is the primary role of oxygen $O_2$?
To act as the final electron acceptor in the electron transport chain.
Which of the following statements about glycolysis is true?
Glycolysis can occur in the absence of oxygen.
Which of the following is NOT a product of the Krebs cycle?
Glucose
Test your knowledge on the overview of metabolic reactions in Chapter 24, focusing on catabolic and anabolic processes, energy storage and release, and the role of ATP in the body. Get ready to dive into the fundamentals of metabolism and nutrition!
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