Biochemistry Quiz: Test Your GK!

17 Questions | Total Attempts: 228

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Biochemistry Quiz: Test Your GK! - Quiz

How well do you know biochemistry? Biochemistry is the research of life in its chemical processes, and it is both life science and chemical science. It discovers the chemistry of living organisms and their molecular basis for the changes occurring in living cells. It has become the groundwork for understanding all biological processes. This fabulous quiz was designed to help you learn about biochemistry. Don’t forget to take your certificate after the quiz.


Questions and Answers
  • 1. 
    Which of these elements is NOT a constituent of Carbohydrates?
    • A. 

      Carbon

    • B. 

      Hydrogen

    • C. 

      Oxygen

    • D. 

      Nitrogen

  • 2. 
    Another word that might describe complex carbohydrates is...
    • A. 

      Monosaccharide

    • B. 

      Disaccharide

    • C. 

      Polysaccharide

  • 3. 
    Carbon is the basis for carbohydrates and all other biologically important molecules. All of the following are reasons why Carbon lends itself to being the basic building block of life on our planet - except for one. Which statement is incorrect?
    • A. 

      Carbon readily makes four stable bonds, in single, double or triple configurations.

    • B. 

      Carbon is a very dense & heavy element, giving living things stability.

    • C. 

      Carbon is the least electronegative non-metal

    • D. 

      Carbon has a high affinity for Oxygen & Hydrogen, which make bonds easily with C

  • 4. 
    As a component of Carbohydrates, Oxygen is very important, too. Which of the following statements is incorrect about the way Oxygen behaves as part of a molecule?
    • A. 

      Oxygen has six outer valence electrons, and makes up to 2 bonds

    • B. 

      Oxygen is highly electronegative; it is an 'electron hog', sharing them unevenly

    • C. 

      The uneven sharing of electrons results in Oxygen forming polar covalent bonds

    • D. 

      The presence of oxygen in Carbohydrates makes them highly insoluble in water

  • 5. 
    The diagrams below show a complex carbohydrate in some of your body cells. Which complex carbohydrate is it?
    • A. 

      Cellulose

    • B. 

      Chitin

    • C. 

      Glucagon

    • D. 

      Glycogen

  • 6. 
    The diagram below shows the most common reaction that helps more complex carbohydrates form. What is the name of the reaction?
    • A. 

      Hydrolysis

    • B. 

      Dehydration synthesis

    • C. 

      Dehydoxylation

    • D. 

      Hydration

  • 7. 
    Which of the following is NOT a role of Carbohydrates in a cell or organism?
    • A. 

      Provide energy, either immediate or long-term (storage)

    • B. 

      Provide structure, support, strength in certain organisms

    • C. 

      Formation of muscle tissues & bone in vertebrate bodies

    • D. 

      Osmoregulation - moderating fluid balance in living organisms

  • 8. 
    Which of these functional groups are you not going to find in all amino acids?
    • A. 

      Carboxyl HO-C=O

    • B. 

      Sulfhydryl -SH

    • C. 

      Hydroxyl -OH

    • D. 

      Amino NH2

    • E. 

      All of them

    • F. 

      Only two of them

  • 9. 
    Which type of carbohydrate does this structural diagram represent?
    • A. 

      Starch

    • B. 

      Monosaccharide

    • C. 

      Disaccharide

    • D. 

      Triglyceride

  • 10. 
    Which type of carbohydrate does this structural diagram represent?
    • A. 

      Monosaccharide - it's Glucose

    • B. 

      Monosaccharide - it's Fructose

    • C. 

      Disaccharide - it's Maltose

    • D. 

      Disaccharide - it's Sucrose

  • 11. 
    What is the role of Glycerol in a complex biomolecule?
    • A. 

      It will bond with Fatty Acids to make a triglyceride lipid

    • B. 

      It supports the quaternary structure of proteins

    • C. 

      It provides the body with a raw material for producing steroid hormones

  • 12. 
    Which type of bond is shown by the dashed line in this diagram?
    • A. 

      Polar Covalent

    • B. 

      Ionic bond

    • C. 

      Covalent

    • D. 

      Hydrogen Bond

  • 13. 
    The diagram shows the formation of which type of bond?
    • A. 

      Ether Bond

    • B. 

      Peptide Bond

    • C. 

      Ionic Bond

    • D. 

      Polar Covalent Bond

  • 14. 
    Which of these is the best definition of a functional group?
    • A. 

      Things that help us recognize what type of molecule we are looking at

    • B. 

      Groups of atoms that have a variety of different bonds

    • C. 

      A cluster of atoms found only in proteins

    • D. 

      A predictable, consistent arrangement of atoms that confer specific properties to a molecule

  • 15. 
    Because they are all large molecules composed of many smaller repeating units, all of the major biomolecules can be considered...
    • A. 

      Isomers

    • B. 

      Polymers

    • C. 

      Elastomers

    • D. 

      Enantiomers

  • 16. 
    This diagram represents which type of molecule?
    • A. 

      Cholesterol

    • B. 

      Triglyceride fat

    • C. 

      Glycogen

    • D. 

      Phospholipid

  • 17. 
    Which of these statements best describes the properties of a phospholipid?
    • A. 

      They are the major component of cell walls

    • B. 

      They have both hydrophobic and hydrophilic regions, so they're amphoteric

    • C. 

      They are highly soluble in water.

    • D. 

      They are an excellent source of phosphate in our diet.

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