Quarter 2 Biological Molecules Quiz
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Questions and Answers

Which carbohydrate is the most abundant organic molecule on earth?

  • Starch
  • Chitin
  • Maltose
  • Cellulose (correct)

What is the principal component of exoskeletons of animals like mollusks and crustaceans?

  • Chitin (correct)
  • Starch
  • Glycogen
  • Maltose

Which organic compound is the primary component of spider's silk?

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

What enzyme changes starch into sugar?

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

What is the term for glucose present in urine?

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

Which monosaccharide is considered the sweetest, being twice as sweet as glucose?

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

What genetic metabolic disorder affects how the body processes galactose?

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

Which disaccharide is commonly known as table sugar?

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

What is formed by combining glucose and galactose?

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

What is usually referred to as animal starch and stored in the liver and muscle?

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

Which monosaccharide serves as a marker to identify blood types?

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

What type of polysaccharide provides support to cell walls of plants and other organisms?

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

What is the primary function of carbohydrates?

<p>To store and supply energy (A)</p> Signup and view all the answers

Which storage polysaccharide is derived from potatoes, wheat, bread, and pasta?

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

What is the main function of enzymes in biological systems?

<p>To speed up chemical reactions (A)</p> Signup and view all the answers

Which type of organic compound serves as a key component of cellular membranes?

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

Which macromolecule is composed of amino acid subunits?

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

From which Greek words does the term 'Monosaccharide' originate?

<p>'Mono' meaning single and 'sugar' (B)</p> Signup and view all the answers

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