Metabolism and Digestion Quiz

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Questions and Answers

What is the definition of metabolism?

  • The chemical changes that take place in a cell that produce energy and basic materials (correct)
  • The sum total of all the enzymatic reactions occurring in a cell
  • The process of breaking down large, complex molecules to provide energy and smaller molecules
  • The formation of complex end products from simple precursors

What are the compounds formed as a result of metabolism called?

  • Catalysts
  • Metabolites (correct)
  • Substrates
  • Enzymes

How are most metabolic pathways classified?

  • As synthesis and degradation
  • As catabolic and anabolic (correct)
  • As aerobic and anaerobic
  • As enzymatic and non-enzymatic

What do catabolic reactions break down?

<p>Large, complex molecules (C)</p> Signup and view all the answers

Which stage of metabolism involves using ATP energy to build larger molecules?

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

What do catabolic reactions provide?

<p>Smaller molecules (B)</p> Signup and view all the answers

What is the main function of ATP in cells?

<p>Serving as an energy form (D)</p> Signup and view all the answers

Which stage of metabolism involves the oxidation of small molecules to CO2 and H2O?

<p>Stage 3: Oxidation of small molecules in the citric acid cycle (A)</p> Signup and view all the answers

What coenzyme reduces to NADH when accepting H+ and electrons?

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

What process involves the digestion of polysaccharides to smaller polysaccharides, maltose, and some glucose?

<p>Stage 1 of carbohydrate metabolism (C)</p> Signup and view all the answers

What is the main role of coenzyme A in metabolism?

<p>Activating acyl groups for transfer (A)</p> Signup and view all the answers

Which compound is involved in the breakdown of large molecules to smaller ones that enter the bloodstream?

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

What compound is obtained from the oxidation of food and serves as the energy form stored in cells?

<p>Adenosine triphosphate (ATP) (A)</p> Signup and view all the answers

Where does the digestion of carbohydrates begin?

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

What is the structure of coenzyme FAD?

<p>Is flavin adenine dinucleotide (D)</p> Signup and view all the answers

What is the role of ATP in metabolism?

<p>Is the energy form stored in cells (B)</p> Signup and view all the answers

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