Lipids and Their Functions Quiz

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Questions and Answers

What is the most important steroid among lipids?

  • Beeswax
  • Paraffin wax
  • Cholesterol (correct)
  • Plant wax

What is the monomer of nucleic acids?

  • Fatty acids
  • Amino acids
  • Waxes
  • Nucleotide (correct)

Which type of fatty acid has more than one double bond?

  • Monounsaturated fatty acids
  • Unsaturated fatty acids (correct)
  • Trans fatty acids
  • Saturated fatty acids

What are lipids relatively insoluble in, but soluble in organic solvents?

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

What do carbohydrates consist of?

<p>(C6 H12 O6)n (C)</p> Signup and view all the answers

Which of the following is NOT a function of carbohydrates?

<p>Being the basic subunit of a carbohydrate (D)</p> Signup and view all the answers

What type of polymer makes up the cell walls of fungi?

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

Which of the following is true about muscle tissues?

<p>They consist heavily of proteins (A)</p> Signup and view all the answers

What is the role of essential amino acids in the body?

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

Which of the following is NOT a common monosaccharide?

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

What is the function of enzymes in the body related to carbohydrates?

<p>Speeding up chemical reactions (C)</p> Signup and view all the answers

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Study Notes

  • Lipids play various roles in the body, including acting as a long-term energy storage, forming cell membranes, and serving as chemical messengers.
  • The main components of lipids are triglycerides, phospholipids, and steroids, with most lipids containing glycerol and fatty acids that are hydrophobic and do not dissolve in water.
  • Steroids are a class of lipids made up of fused rings of atoms, with cholesterol being the most important steroid.
  • Nucleic acids are molecules that contain genetic information in the form of DNA or RNA, consisting of nucleotides that transmit genetic information to the next generation.
  • Proteins are polymers of amino acids and serve various functions in the body, such as providing structural support, acting as enzymes, and playing a role in immune responses.

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