Carbohydrate Metabolism Quiz

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Questions and Answers

What is the primary source of carbohydrates for plants?

  • Adenosine triphosphate (ATP)
  • Glucose and fructose
  • Glycogen
  • Carbon dioxide and water (correct)

How do animals and fungi break down stored carbohydrates to make energy available to cells?

  • Glycogen synthesis
  • Photosynthesis
  • ATP hydrolysis
  • Cellular respiration (correct)

Where are non-glucose monosaccharides transformed into glucose after resorption in the gut?

  • Liver (correct)
  • Spleen
  • Kidney
  • Pancreas

What are the simple monomers into which complex carbohydrates are broken down during digestion?

<p>Glucose, fructose, mannose, and galactose (B)</p> Signup and view all the answers

What are the end products of cellular (aerobic) respiration of glucose and oxygen?

<p>Carbon dioxide and water (C)</p> Signup and view all the answers

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Study Notes

Carbohydrates and Energy

  • The primary source of carbohydrates for plants is sunlight, which is converted into chemical energy through photosynthesis.

Carbohydrate Breakdown

  • Animals and fungi break down stored carbohydrates into energy through cellular respiration, a process that releases energy from glucose molecules.

Glucose Transformation

  • Non-glucose monosaccharides are transformed into glucose after resorption in the small intestine, specifically in the epithelial cells lining the intestinal wall.

Digestion of Complex Carbohydrates

  • Complex carbohydrates are broken down into simple monomers, including glucose, fructose, and galactose, during digestion.

Cellular Respiration

  • The end products of cellular (aerobic) respiration of glucose and oxygen are carbon dioxide, water, and ATP (energy), which is then used to power cellular activities.

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