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

What happens when white light or UV hits vitamin A?

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

Which vitamin is important to prevent oxidative damage?

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

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

<p>Formation of ATP (C)</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 (A)</p> Signup and view all the answers

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

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

What is a defining characteristic of chemolithotrophs?

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

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

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

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