Biochemistry 1 Lecture 2: Chemistry of Monosaccharides
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Questions and Answers

What is the empirical formula for carbohydrates?

  • CHO
  • CH2O (correct)
  • C6H12O6
  • C5H10O5

What is the classification name for compounds like Trioses, Tetroses, Pentoses, and Hexoses?

  • Polysaccharides
  • Monosaccharides (correct)
  • Oligosaccharides
  • Disaccharides

Which type of Polysaccharides has a uniform chemical structure?

  • Isopolysaccharides
  • Anisopolysaccharides
  • Heteropolysaccharides
  • Homopolysaccharides (correct)

What is the most important category among the Oligosaccharides?

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

Which functional groups are commonly found in carbohydrates?

<p>Hydroxyl group (A)</p> Signup and view all the answers

What is the simplest aldose?

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

How are monosaccharides classified based on the number of carbon atoms?

<p>By using a variable prefix followed by the suffix -ose (B)</p> Signup and view all the answers

Which form of isomerism is determined by the spatial relationship to the reference sugar, glyceraldehyde?

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

Which monosaccharides naturally occur in the L form?

<p>L-Arabinose and L-Fucose (B)</p> Signup and view all the answers

What produces epimers in monosaccharides?

<p>Variations in configuration of carbon atoms 2, 3, or 4 (D)</p> Signup and view all the answers

Which functional groups are commonly found in monosaccharides?

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

What is the general empirical formula for monosaccharides?

<p>CH2O (C)</p> Signup and view all the answers

Which category of carbohydrates includes compounds with Di, tri, tetra, and penta units?

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

In which classification do hexoses belong?

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

What is the most abundant type of compounds found in nature?

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

Which term is used to classify monosaccharides based on the number of carbon atoms?

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

What determines whether a sugar belongs to the D or L series in isomerism?

<p>The presence of asymmetric carbon atom (B)</p> Signup and view all the answers

Which type of isomerism is determined by the spatial relationship to the reference sugar, glyceraldehyde?

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

Which term is used to describe monosaccharides that differ in orientation of –OH group around only one of the middle asymmetric carbons?

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

What confers optical activity on monosaccharides with asymmetric carbon atoms?

<p>Asymmetric carbon atoms (A)</p> Signup and view all the answers

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