Overview of Metabolic Reactions: Catabolic and Anabolic Pathways
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Questions and Answers

What percentage of energy used during ATP production creates heat?

  • 60% (correct)
  • 50%
  • 80%
  • 70%

Which of the following is NOT a mode of heat transfer mentioned in the text?

  • Absorption (correct)
  • Conduction
  • Radiation
  • Convection

What percentage of heat is lost through radiation in a naked human?

  • 3%
  • 60% (correct)
  • 20%
  • 15%

Which of the following is NOT a factor contributing to the Basal Metabolic Rate (BMR)?

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

How many calories are equivalent to one pound of fat?

<p>3500 calories (C)</p> Signup and view all the answers

Which of the following vitamins is fat-soluble?

<p>Vitamin E (C)</p> Signup and view all the answers

Which type of reaction involves producing larger molecules using the energy from catabolism?

<p>Anabolic (D)</p> Signup and view all the answers

In carbohydrate metabolism, what happens to pyruvate if oxygen is present?

<p>Enters the Krebs cycle (A)</p> Signup and view all the answers

Which hormone is primarily anabolic in its metabolic effects?

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

What is the primary function of the electron transport chain in cellular metabolism?

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

What is the process of creating glucose in the liver from non-carbohydrate precursors called?

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

In lipid metabolism, what role does cholecystokinin (CCK) play?

<p>Suppresses hunger and stimulates enzyme release (B)</p> Signup and view all the answers

What is the primary purpose of ketone bodies in metabolism?

<p>Fuel when glucose availability is low (C)</p> Signup and view all the answers

How are excess amino acids typically dealt with in the body?

<p>'Wasted' as nitrogenous waste (D)</p> Signup and view all the answers

What is the primary metabolic state when the body is digesting and absorbing food, with anabolism exceeding catabolism?

<p>Absorptive state (B)</p> Signup and view all the answers

Why is nitrogen processed through the urea cycle when dealing with excess amino acids?

<p>To remove toxic nitrogen waste from the body (B)</p> Signup and view all the answers

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