Lab 1: Biochemistry Carbohydrates

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Questions and Answers

Which type of carbohydrates contain 3 carbon atoms?

  • Disaccharides
  • Pentoses
  • Hexoses
  • Trioses (correct)

What functional group do aldoses contain?

  • Hydroxyl group (OH)
  • Carboxylic group (COOH)
  • Ketone group (C=O)
  • Aldehyde group (-CHO) (correct)

Which classification of carbohydrates includes glucose and fructose?

  • Trioses
  • Monosaccharides (correct)
  • Polysaccharides
  • Disaccharides

What are ketoses?

<p>Carbohydrates with terminal ketone group (B)</p> Signup and view all the answers

Sucrose is an example of which type of carbohydrate?

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

Which type of carbohydrate is made up of many monosaccharide units linked together?

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

How many carbon atoms do hexoses contain?

<p>6 (B)</p> Signup and view all the answers

What is the general formula for carbohydrates?

<p>[C(H2O)]n (C)</p> Signup and view all the answers

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Study Notes

Carbohydrate structure

  • Trioses are carbohydrates with three carbon atoms
  • Aldoses are carbohydrates that contain an aldehyde functional group
  • Monosaccharides are simple sugars that cannot be broken down into smaller units; glucose and fructose are examples
  • Ketoses are carbohydrates that contain a ketone functional group

Carbohydrate classification

  • Disaccharides are carbohydrates that are composed of two monosaccharides joined together; sucrose is an example
  • Polysaccharides are complex carbohydrates made up of many monosaccharide units linked together

Other carbohydrate properties

  • Hexoses are carbohydrates that have six carbon atoms
  • The general formula for carbohydrates is (CHâ‚‚O)â‚™

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