Metabolism and Nutrition: Overview of Metabolic Reactions
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Questions and Answers

What is the main way 60% of the energy used during ATP production is lost?

  • Conduction
  • Convection
  • Evaporation
  • Radiation (correct)

Which component is responsible for transferring heat by contact resulting in a 3% heat loss?

  • Thermoregulation
  • Radiation
  • Convection (correct)
  • Evaporation

What is the proportion of energy lost through evaporation during ATP production?

  • 15%
  • 20% (correct)
  • 70%
  • 60%

Which component contributes to transferring heat via infrared waves?

<p>Radiation (A)</p> Signup and view all the answers

What is the main factor contributing to the Basal Metabolic Rate (BMR)?

<p>Metabolic Rate (C)</p> Signup and view all the answers

Which type of compounds are needed for biochemical reactions in the body?

<p>Vitamins (A)</p> Signup and view all the answers

What is the primary function of catabolic reactions?

<p>To release energy by breaking down molecules (A)</p> Signup and view all the answers

What is the role of ATP in cellular metabolism?

<p>It is the currency of energy transfer in the body (A)</p> Signup and view all the answers

Which of the following is true about the Krebs cycle?

<p>It produces electron carriers like NADH and FADH2 (D)</p> Signup and view all the answers

What is the primary function of the electron transport chain (ETC)?

<p>To generate ATP through oxidative phosphorylation (A)</p> Signup and view all the answers

What is the primary function of gluconeogenesis?

<p>To synthesize glucose from non-carbohydrate precursors (B)</p> Signup and view all the answers

What is the primary function of lipolysis?

<p>To break down triglycerides into fatty acids and glycerol (A)</p> Signup and view all the answers

Which of the following metabolic states occurs during fasting or starvation?

<p>Ketogenic state (C)</p> Signup and view all the answers

What is the primary role of insulin in metabolic regulation?

<p>To promote the storage of glucose and stimulate protein synthesis (C)</p> Signup and view all the answers

What is the primary source of energy during the absorptive state?

<p>Glucose from food (C)</p> Signup and view all the answers

What is the role of cholecystokinin (CCK) in lipid metabolism?

<p>It stimulates the release of lipase and bile salts for fat digestion (D)</p> Signup and view all the answers

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