Metabolism Overview: Catabolism and Energy Production
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Questions and Answers

What is the consequence of niacin deficiency?

  • Diarrhea, dermatitis, dementia (correct)
  • Blindness
  • Skin lesions, blood vessel fragility, defective wound healing
  • Scurvy
  • Which vitamin is essential for the synthesis of collagen?

  • Vitamin C (correct)
  • Vitamin D
  • Vitamin E
  • Vitamin A
  • What is the role of vitamins D2 and D3 in the body?

  • Storage of calcium and phosphorus for bone strength (correct)
  • Activity of photoreceptors in low light conditions
  • Important for the synthesis of collagen
  • Prevent oxidative damage
  • Which vitamin deficiency leads to rickets?

    <p>Vitamin D</p> Signup and view all the answers

    What happens when white light or UV hits vitamin A?

    <p>The double bonds undergo reconfiguration</p> Signup and view all the answers

    Which vitamin is important to prevent oxidative damage?

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

    What is the main difference between catabolism and anabolism?

    <p>Catabolism involves breaking down complex molecules to provide energy, while anabolism involves building up complex molecules that require an input of energy.</p> Signup and view all the answers

    What is the primary form of energy storage in catabolic pathways?

    <p>Formation of ATP</p> Signup and view all the answers

    What is the key input of energy required for anabolic reactions?

    <p>Phosphoryl group transfer potential of ATP</p> Signup and view all the answers

    Which organisms can use carbon dioxide from the atmosphere as their sole source of carbon?

    <p>Autotrophs</p> Signup and view all the answers

    What is a defining characteristic of chemolithotrophs?

    <p>They obtain energy from the oxidation of inorganic compounds.</p> Signup and view all the answers

    Which metabolic process involves converting organic nutrient molecules into smaller, simple end products?

    <p>Catabolism</p> Signup and view all the answers

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