Carbohydrates 101
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Questions and Answers

What are the three elements that make up carbohydrates?

  • C, O, and S
  • C, O, and N
  • C, H, and S
  • C, H, and N (correct)

Which of the following is NOT a function of carbohydrates?

  • Building cell membranes (correct)
  • Supplying carbon atoms
  • Storing energy
  • Providing energy

Which group of carbohydrates cannot be further hydrolyzed?

  • Monosaccharides (correct)
  • Disaccharides
  • Oligosaccharides
  • Polysaccharides

What are the functions of carbohydrates in living organisms?

<p>Providing energy, storing energy, and supplying carbon atoms (A)</p> Signup and view all the answers

Which of the following is not a classification of carbohydrates?

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

What are the two types of monosaccharides?

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

What is the simplest group of carbohydrates?

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

How many stereoisomers does glucose have?

<p>16 (C)</p> Signup and view all the answers

What are the two types of monosaccharides?

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

What are anomers?

<p>Cyclic monosaccharides that differ only in the position of the substituents on the anomeric carbon atom (D)</p> Signup and view all the answers

How many chiral centers does glucose have?

<p>4 (B)</p> Signup and view all the answers

Which type of carbohydrate can be classified as sucrose?

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

What are cyclic forms of monosaccharides in equilibrium with?

<p>Open chain forms (B)</p> Signup and view all the answers

What are anomers?

<p>Cyclic monosaccharides that differ only in the position of the substituents on the anomeric carbon atom (A)</p> Signup and view all the answers

Which of the following is NOT a component of carbohydrates?

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

Which of the following is not a type of carbohydrate?

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

Which group of carbohydrates has the largest number of monosaccharides?

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

Which of the following is an example of a ketose monosaccharide?

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

What is the difference between a ketose and an aldose?

<p>The position of the carbonyl group (B)</p> Signup and view all the answers

Study Notes

  • Carbohydrates are macromolecules consisting of C, H, and O.
  • They are essential components of all living organisms.
  • Carbohydrates provide energy, store energy, and supply carbon atoms for the synthesis of other biochemical substances.
  • They can be classified as monosaccharides, disaccharides, oligosaccharides, and polysaccharides.
  • Monosaccharides are the simplest group of carbohydrates and cannot be further hydrolyzed.
  • Monosaccharides can be aldoses or ketoses and can have different numbers of carbon atoms.
  • Monosaccharides can exist in different forms, including cyclic forms and anomers.
  • Cyclic forms are in equilibrium with open chain forms.
  • Anomers are cyclic monosaccharides that differ only in the position of the substituents on the anomeric carbon atom.
  • Glucose has 16 stereoisomers due to its 4 chiral centers.

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"Test your knowledge of Carbohydrates: From Monosaccharides to Polysaccharides" - explore the essential components of living organisms that provide energy, store energy, and supply carbon atoms for biochemical substances. Learn about the different classifications of carbohydrates, including monosaccharides, disaccharides, oligosaccharides, and polysaccharides, and understand the complexities of their structures, such as cyclic forms and anomers. With 16 stereoisomers of

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