Understanding Biomolecules Quiz

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Questions and Answers

What is the chemical definition of Carbohydrates?

  • Compounds that produce aldehydes or ketones on hydrolysis
  • Substances that taste sweet and have no specific chemical definition
  • Polyhydroxy alcohols or aldehydes that remain unchanged on hydrolysis
  • Molecules that produce hydroxy aldehydes or ketones on hydrolysis (correct)

What is the major function of Carbohydrates in living organisms?

  • Protection against infections
  • Energy production (correct)
  • Regulation of body temperature
  • Formation of major structural components

Which class of biomolecules makes up around 50% of the cellular dry weight?

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

What is the chemical nature of proteins?

<p>Polymers of amino acids (A)</p> Signup and view all the answers

Which component is considered an important structural fiber for plants?

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

What is the main function of nucleic acids?

<p>Transfer genetic information (B)</p> Signup and view all the answers

Which protein allows movement by contraction of muscles?

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

What is the structural classification of proteins based on the folding complexity of a polypeptide chain?

<p>Primary, secondary, tertiary, and quaternary (B)</p> Signup and view all the answers

Which of the following is a major nitrogenous base found in DNA?

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

What is the primary characteristic that distinguishes lipids from other biomolecules?

<p>Insolubility in water (B)</p> Signup and view all the answers

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