Biochemistry: Simple Sugars and Carbohydrates
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Questions and Answers

The simple sugar is:

  • polysaccharides
  • oligosaccharides
  • disaccharides
  • monosaccharides (correct)

Which of the following consider aldose sugar:

  • Glucose (correct)
  • Dihydroxyacetone
  • Ribulose
  • Fructose

One of the following is a ketose sugar:

  • Glucose
  • Ribose
  • Mannose
  • Fructose (correct)

Aldohexose is:

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

Levulose is:

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

Which of the following is the most abundant biomolecule on the earth?

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

Which of the following is the smallest carbohydrate - triose?

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

Which of the following is an example of Epimers?

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

Which class of carbohydrates cannot be hydrolyzed further?

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

The only carbohydrate which does not have any chiral carbon atoms is

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

The epimer of glucose is

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

Glucose is a monosaccharide and is a

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

The minimum number of carbons in monosaccharide is

<p>2 (D)</p> Signup and view all the answers

Examples of Epimers

<p>Mannose &amp; Glucose (B), Glucose &amp; Galactose (C)</p> Signup and view all the answers

Sugar that makes up RNA is

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

Flashcards

Simple sugar

A monosaccharide is the simplest form of sugar, which cannot be hydrolyzed into smaller sugars.

Aldose sugar example

Glucose is an aldose sugar, meaning it has an aldehyde group.

Ketose sugar example

Fructose is a ketose sugar, containing a ketone group in its structure.

Aldohexose example

Glucose is an aldohexose, meaning it's an aldose with six carbon atoms.

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Levulose

Another name for fructose.

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Most abundant biomolecule

Carbohydrates are the most abundant biomolecules on Earth.

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Smallest carbohydrate (triose)

Glyceraldehyde is the smallest carbohydrate, with three carbon atoms.

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Epimers example

Glucose and galactose are epimers, differing in the configuration around a single carbon atom.

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Non-hydrolyzable carbohydrate

Monosaccharides cannot be further hydrolyzed into smaller sugars.

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Carbohydrate with no chiral carbons

Dihydroxyacetone is the only carbohydrate without chiral carbon atoms.

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Epimer of Glucose

Galactose is an epimer of glucose.

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Glucose classification

Glucose is a hexose (six-carbon) monosaccharide.

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Minimum monosaccharide carbons

The minimum number of carbon atoms in a monosaccharide is three.

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Sugar in RNA

Ribose is the sugar that makes up RNA.

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Study Notes

Simple Sugars

  • Simple sugars are also known as monosaccharides
  • Disaccharides, oligosaccharides, and polysaccharides are not simple sugars

Aldose Sugars

  • Glucose is an aldose sugar

Ketose Sugars

  • Fructose is a ketose sugar

Aldohexose

  • Glucose is an aldohexose

Levulose

  • Levulose is another name for fructose

Most Abundant Biomolecule

  • Carbohydrates are the most abundant biomolecule on Earth

Smallest Carbohydrate (Triose)

  • Glyceraldehyde is the smallest carbohydrate (triose)

Epimers

  • Glucose and galactose are epimers
  • Glucose and fructose are not epimers
  • Glucose, ribose, and mannose are not epimers

Carbohydrates that cannot be hydrolyzed further

  • Monosaccharides cannot be hydrolyzed further

Chiral Carbon Atoms

  • Dihydroxyacetone does not have any chiral carbon atoms

Epimers of Glucose

  • Galactose is an epimer of glucose

Glucose Classification

  • Glucose is a hexose (6-carbon sugar)
  • Glucose is a monosaccharide

Monosaccharide Carbon Number

  • The minimum number of carbons in a monosaccharide is 3

RNA Sugar

  • Ribose is the sugar that makes up RNA

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Related Documents

MCQ on Monosaccharides PDF

Description

This quiz covers essential concepts related to simple sugars, including monosaccharides, disaccharides, and their classifications. It also discusses important sugars like glucose and fructose, as well as terms like epimers and chiral carbon atoms. Test your knowledge of carbohydrates, the most abundant biomolecule on Earth!

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