Biology Quiz 3.1-3.11
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Questions and Answers

A phospholipid is composed of....

  • One glycerol molecule linked to one phosphate group and two fatty acids (correct)
  • One fatty acid molecule linked to three glycerol molecules
  • One glycerol molecule linked to three phosphate groups
  • One fatty acid molecule linked to one glycerol molecule and two phosphate groups
  • The molecular formula of most monosaccharides follows the following pattern:

  • C(n) H(3n) O(n)
  • C(n) H(n) O(n)
  • C(n) H(2n) O(n) (correct)
  • C(n) H(n) O(2n)
  • What is the general function of enzymes within a cell?

  • To speed up chemical reactions (correct)
  • To stop chemical reactions
  • To slow down chemical reactions
  • To absorb monomers
  • A disaccharide forms when....

    <p>Two monosaccharides join by a dehydration reaction</p> Signup and view all the answers

    Fatty acids are...

    <p>Hydrophobic</p> Signup and view all the answers

    Study Notes

    Phospholipids

    • Comprised of one glycerol molecule, one phosphate group, and two fatty acids.
    • Essential for forming cell membranes, providing a hydrophobic barrier.

    Monosaccharides

    • General molecular formula follows C(n) H(2n)O(n).
    • Basic building blocks of carbohydrates, playing a crucial role in energy storage and supply.

    Enzymes

    • Function primarily to speed up chemical reactions within cells.
    • Act as catalysts, lowering the activation energy required for reactions.

    Disaccharides

    • Formed when two monosaccharides join through a dehydration reaction.
    • Common examples include sucrose (table sugar) and lactose (milk sugar).

    Fatty Acids

    • Composed of carbon, hydrogen, and oxygen, typically not in a fixed ratio like carbohydrates.
    • Characterized by their hydrophobic nature, essential in energy storage and membrane structure.

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    Description

    Test your knowledge on the fundamental concepts of Biology in chapters 3.1 to 3.11. This quiz covers key topics such as phospholipids and their structures, ensuring a solid understanding of biological molecules. Perfect for students looking to review essential biology concepts.

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