Lipids and Fatty Acid Chains

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Questions and Answers

What is the primary function of saturated fatty acids in the human body?

  • Providing energy and stability to cell membranes (correct)
  • Reducing inflammation
  • Supporting brain function
  • Lowering LDL cholesterol levels

Which type of fatty acid is associated with improved heart health and is found in olive oil, avocados, and nuts?

  • Oleic acid (correct)
  • Eicosapentaenoic acid
  • Palmitic acid
  • Stearic acid

What is the main difference between saturated and unsaturated fatty acids in terms of heart health?

  • Saturated fatty acids are more effective at reducing inflammation
  • Unsaturated fatty acids can help lower LDL cholesterol levels (correct)
  • Saturated fatty acids are more easily metabolized by the body
  • Unsaturated fatty acids are more abundant in plant-based foods

Which of the following foods is a rich source of omega-3 fatty acids?

<p>Fatty fish like salmon (B)</p> Signup and view all the answers

What is the name of the saturated fatty acid found in both animal and plant fats?

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

What is the primary benefit of consuming unsaturated fatty acids in place of saturated fatty acids?

<p>Reducing the risk of heart disease and stroke (C)</p> Signup and view all the answers

What is the characteristic of saturated fatty acids that leads to their higher melting points?

<p>Their ability to pack their molecules together in a straight rod-like shape (B)</p> Signup and view all the answers

What is the main difference between saturated and unsaturated fatty acids?

<p>The presence or absence of carbon-carbon double bonds (A)</p> Signup and view all the answers

What characteristic do saturated fatty acids have?

<p>No double bonds in their carbon chain (D)</p> Signup and view all the answers

What is the term for a fatty acid with one or more double bonds?

<p>Unsaturated fatty acid (D)</p> Signup and view all the answers

What is the general shape of the molecules of saturated fatty acids?

<p>Straight rod-like shape (A)</p> Signup and view all the answers

What is the characteristic of unsaturated fatty acids?

<p>They have one or more double bonds in their carbon chain (A)</p> Signup and view all the answers

What is the function of the carboxylic acid group in a fatty acid?

<p>It provides a point of attachment for other molecules (A)</p> Signup and view all the answers

What is the characteristic of unsaturated fatty acids that affects their melting points?

<p>Their ability to form bends in their molecular structure (A)</p> Signup and view all the answers

What is the term for the fatty acid chains that are typically found in lipids?

<p>Long aliphatic tails (B)</p> Signup and view all the answers

What type of lipids are formed when fatty acids react with glycerol?

<p>Fats or oils (C)</p> Signup and view all the answers

What is the characteristic of fatty acids that determines whether they are saturated or unsaturated?

<p>The presence or absence of double bonds in the chain (D)</p> Signup and view all the answers

What is the general structure of fatty acids?

<p>A carboxylic acid group attached to a carbon chain (A)</p> Signup and view all the answers

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