Carbohydrate Chemistry and Analysis
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Questions and Answers

What is the primary function of carbohydrates in living organisms?

  • Water retention and sweetening
  • Emulsification and gelation
  • Oxidation and stabilization
  • Structural components and energy source (correct)

What is the typical hydrogen–oxygen atom ratio in carbohydrates?

  • 2:1 (correct)
  • 3:2
  • 4:3
  • 1:2

How are carbohydrates commonly referred to when they exist in small quantities?

  • Monosaccharides
  • Aldehydes
  • Saccharides (correct)
  • Polysaccharides

What is the suffix commonly used in describing and naming carbohydrates?

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

Which element is not found in carbohydrates?

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

Which type of carbohydrate yields a certain number of monosaccharide molecules (2-9) on hydrolysis?

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

In what forms can carbohydrates be used in foods?

<p>Sweeteners, emulsion stabilizers, gelation agents, water retainers (A)</p> Signup and view all the answers

What type of carbohydrates are collectively known as sugars, crystalline solids, soluble in water, and sweet to taste?

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

Which carbohydrate classification contains monosaccharides and oligosaccharides?

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

What is the general formula for disaccharides?

<p>$C_{12}H_{22}O_{11}$ (A)</p> Signup and view all the answers

Which carbohydrate type is insoluble in water and tasteless?

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

What are carbohydrates linked to that play an important role in cell interactions?

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

Which carbohydrate acts as an energy reserve and storage form in the body?

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

What is the molecular formula for trisaccharide raffinose?

<p>$C_{18}H_{32}O_{16}$ (D)</p> Signup and view all the answers

What type of carbohydrates are all monosaccharides and disaccharides other than sucrose?

<p>$Reducing sugars$ (D)</p> Signup and view all the answers

What are short-chain carbohydrates found in foods also known as?

<p>Option a represents the short-chain carbohydrates found in foods. (C)</p> Signup and view all the answers

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Description

This quiz covers the theory of food chemistry and analysis, focusing on the introduction to carbohydrate chemistry, types of carbohydrates, their functions, and classification. It provides an understanding of carbohydrates as structural components in living organisms and as an energy source through oxidation for both plants and animals.

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