Biological Macromolecules Overview
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Questions and Answers

What is the main role of cholesterol in animal cell membranes?

  • It promotes the growth of skeletal muscle
  • It is a precursor for other steroids synthesis (correct)
  • It is a component of nucleic acids
  • It is a precursor for carbohydrates synthesis

Which of the following is an anabolic effect of anabolic steroids?

  • Breast development in men
  • Growth of skeletal muscle (correct)
  • Genital shrinking in men
  • Heart attacks

What is the main function of proteins in cells?

  • Structural support (correct)
  • Energy storage
  • Cell communication
  • DNA replication

Which macromolecule accounts for more than 50% of the dry weight of most cells?

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

What are proteins made up of?

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

What are the building blocks of nucleic acids?

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

What process is responsible for constructing macromolecules by covalently bonding monomers?

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

What type of reactions break down polymers?

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

How are macromolecules in food broken down in the digestive tract?

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

What is the basis for the vast diversity of life's polymers?

<p>They are built from a limited set of common monomers (B)</p> Signup and view all the answers

Which class of macromolecules serves as fuel and building materials in organisms?

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

What provides the molecular logic for the simple yet elegant construction of unique macromolecules from common small molecules?

<p>Limited set of common monomers shared by all organisms (A)</p> Signup and view all the answers

What is the function of carbohydrates in cells?

<p>Serve as the main energy source for cells and for energy storage (A)</p> Signup and view all the answers

What is the general formula for monosaccharides?

<p>[CH2O]n where n is between 3 and 6 (C)</p> Signup and view all the answers

What is the most common monosaccharide?

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

How do monosaccharide isomers differ?

<p>They have the same number of atoms but different structures and properties (A)</p> Signup and view all the answers

Which type of molecules form rings in aqueous solutions?

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

What are the building blocks of more complex sugars and polysaccharides?

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