Chemistry of life
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Questions and Answers

Which of the following biomolecules is a monosaccharide?

  • Monosaccharide (correct)
  • Nucleotide
  • Fatty acid
  • Amino acid
  • What is the atomic number of carbon?

  • 2
  • 6 (correct)
  • 8
  • 16
  • How many shared electrons can carbon accommodate in its outer shell when forming covalent bonds?

  • 4 (correct)
  • 6
  • 2
  • 8
  • How many covalent bonds can oxygen form?

    <p>2</p> Signup and view all the answers

    How many covalent bonds can sulfur form?

    <p>4</p> Signup and view all the answers

    How many covalent bonds can nitrogen form?

    <p>4</p> Signup and view all the answers

    How many covalent bonds can phosphorus form?

    <p>4</p> Signup and view all the answers

    Which of the following elements has the highest atomic number?

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

    Which of the following elements can make the most covalent bonds?

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

    Which of the following elements has the least number of electrons in its outer shell?

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

    Hydrogen in a covalent bond with which atom(s) in the table creates a polar bond?

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

    Which part of the water molecule will be more negative and why: the oxygen or the hydrogen?

    <p>Oxygen, because it attracts more electrons</p> Signup and view all the answers

    What type of bond occurs between a (+)δ H on one molecule and a (-)δ O (or N or sometimes S) on a neighboring molecule?

    <p>Hydrogen bond</p> Signup and view all the answers

    What type of non-covalent bond involves transient electrostatic interactions between permanent or induced dipoles?

    <p>Van der Waals force</p> Signup and view all the answers

    What happens to hydrophobic molecules in water?

    <p>They aggregate and do not bond with water</p> Signup and view all the answers

    What type of bond occurs between oppositely charged molecules?

    <p>Ionic bond</p> Signup and view all the answers

    What is the functional group represented by R– C–H?

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

    What is the functional group represented by R – C – O – C – R’?

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

    What is the functional group represented by R – C – N?

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

    What is the functional group represented by R – O – R’?

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

    Which functional group can be cleaved from molecules such as ATP to provide energy?

    <p>Phosphoryl group</p> Signup and view all the answers

    What is the general formula for monosaccharides?

    <p>(CH2O)n</p> Signup and view all the answers

    What is the generic name for a monosaccharide with a 6-atom ring structure?

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

    What functional group is found at the end of a fatty acid?

    <p>Carboxyl group</p> Signup and view all the answers

    What type of bond is formed between fatty acids and glycerol in the creation of mono-, di-, or tri-glycerides?

    <p>Ester linkage</p> Signup and view all the answers

    What is the general structure of an amino acid?

    <p>R group + amino group + carboxyl group</p> Signup and view all the answers

    What type of bond is formed between amino acids in the formation of proteins?

    <p>Peptide bond</p> Signup and view all the answers

    What are the two types of nucleotides based on the structure of their nitrogenous base?

    <p>Purines and Pyrimidines</p> Signup and view all the answers

    What is the general structure of a nucleotide?

    <p>Nitrogenous base + 5-C sugar + Phosphate group(s)</p> Signup and view all the answers

    What type of bond is formed between nucleotides in the formation of nucleic acids?

    <p>Phosphodiester bond</p> Signup and view all the answers

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