Carbohydrates Basic Concepts

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Questions and Answers

What is the ratio of hydrogen atoms to oxygen atoms in a carbohydrate molecule?

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

What elements are found in carbohydrates?

  • Carbon, Hydrogen, Sodium
  • Carbon, Helium, Oxygen
  • Carbon, Hydrogen, Oxygen (correct)
  • Carbon, Hydrogen, Nitrogen

Which carbohydrate is the main respiratory substrate of most organisms?

  • Cellulose
  • Glucose (correct)
  • Starch
  • Glycogen

What is the function of storage carbohydrates?

<p>Storing chemical energy (C)</p> Signup and view all the answers

How are monosaccharides classified?

<p>By the number of carbon atoms (A)</p> Signup and view all the answers

How does the presence of large amounts of lipid in an animal affect its density?

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

What are the acidic properties associated with the carboxyl group of a fatty acid?

<p>It forms hydrogen ions in solution (B)</p> Signup and view all the answers

Why do oils secreted by some animals onto their skin consist of triglycerides?

<p>To waterproof the skin (B)</p> Signup and view all the answers

Which functional group of a fatty acid is ionic in nature?

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

What type of alcohol is ethanol based on its hydroxyl groups?

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

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