General Biology: Enzymes and Their Functions
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Questions and Answers

Which type of biomolecule are enzymes primarily composed of?

  • Carbohydrates
  • Proteins (correct)
  • Nucleic acids
  • Lipids

What is the main function of enzymes in cellular reactions?

  • Speeding up chemical reactions (correct)
  • Regulating body temperature
  • Neutralizing toxins
  • Storing genetic information

Which type of enzyme is responsible for unraveling DNA?

  • Helicase (correct)
  • Oxidoreductase
  • Ligase
  • Isomerase

What is the function of amylase in the body?

<p>Converting starches to sugars (A)</p> Signup and view all the answers

Which enzyme aids in the digestion of fats in the gut?

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

Where are enzymes produced to aid in the digestion of food?

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

What is the role of enzymes in biochemical reactions?

<p>Kick start the biochemical reactions by lowering the activation energy (A)</p> Signup and view all the answers

How does high temperature affect enzyme activity?

<p>It decreases enzyme activity by denaturing the enzymes (D)</p> Signup and view all the answers

What is denaturation of an enzyme?

<p>The alteration of the shape of the enzyme, preventing substrate binding (D)</p> Signup and view all the answers

What is the effect of an increase in pH level on enzyme activity?

<p>It decreases enzyme activity by causing denaturation (A)</p> Signup and view all the answers

What is the function of enzyme inhibitors?

<p>To slow down or stop enzymatic reactions (C)</p> Signup and view all the answers

What is the role of competitive inhibitors?

<p>They prevent attachment of the partner substrate to the active site (A)</p> Signup and view all the answers

What did Dutch chemist G.J. Mulder first describe about proteins?

<p>He coined the term 'protein' from a Greek word (C)</p> Signup and view all the answers

What are amino acids composed of?

<p>'Amino' and 'Carboxyl' functional groups, Carbon, Hydrogen, Oxygen, Nitrogen, Sulphur, and Phosphorus (A)</p> Signup and view all the answers

What are proteins composed of?

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

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