Bio 2 Mid-term Exam Review (Fall 2014)

25 Questions | Total Attempts: 461

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Bio 2 Mid-term Exam Review (Fall 2014)

Questions and Answers
  • 1. 
    Which of the following is a polymer of amino acids?
    • A. 

      Protein

    • B. 

      Carbohydrate

    • C. 

      Lipid

    • D. 

      Nucleic Acid

  • 2. 
    Which of the following is a polymer of nucleotides?
    • A. 

      Nucleic Acid

    • B. 

      Protein

    • C. 

      Carbohydrate

    • D. 

      Lipid

  • 3. 
    Which of the following monomers make up a lipid?
    • A. 

      Glycerol and fatty acid

    • B. 

      Glycerol and amino acids

    • C. 

      Glycerol and nucleic acids

    • D. 

      Thymine and guanine

  • 4. 
    Which of the following is NOT a nucleotide found in DNA?
    • A. 

      Adenine

    • B. 

      Cytosine

    • C. 

      Uracil

    • D. 

      Guanine

  • 5. 
    Which of the following is a structural form of carbohydrate?
    • A. 

      Cellulose

    • B. 

      Starch

    • C. 

      Enzyme

    • D. 

      RNA

  • 6. 
    Atherosclerosis is a disease caused by a build-up of plaque inside arteries. What polymer is the main component of the plaque formation?
    • A. 

      Saturated fatty acids

    • B. 

      Unsaturated fatty acids

    • C. 

      Amino acids

    • D. 

      Steroid

  • 7. 
    In biological systems, proteins are said to be denatured when...
    • A. 

      The protein is folded and layered.

    • B. 

      The protein changes shape and becomes non-functional.

    • C. 

      The protein changes into an enzyme.

    • D. 

      The protein is artificial.

  • 8. 
    The functional group -NH2 is called the ____.
    • A. 

      Amino group

    • B. 

      Acid group

    • C. 

      Hydroxide group

    • D. 

      Fatty acid

  • 9. 
    How many amino acids are found in humans?
    • A. 

      12

    • B. 

      16

    • C. 

      20

    • D. 

      24

  • 10. 
    Which of the following describes DNA?
    • A. 

      It contains uracil.

    • B. 

      It contains the sugar ribose.

    • C. 

      It controls the production of proteins.

    • D. 

      It is made of amino acids.

  • 11. 
    Organic compounds always contain the element ____.
    • A. 

      Carbon

    • B. 

      Nitrogen

    • C. 

      Oxygen

    • D. 

      Organium

  • 12. 
    Which of the following is NOT true of water?
    • A. 

      It resists change in temperature.

    • B. 

      It is considered the "universal solvent".

    • C. 

      It can diffuse through lipids easily.

    • D. 

      It has unique properties due to its polarity.

  • 13. 
    There are literally hundreds of thousands of different organic molecules. Which statement best explains how this is possible?
    • A. 

      Elements can make an unlimited number of chemical bonds.

    • B. 

      Carbon is unique in that it can make four chemical bonds.

    • C. 

      Carbon can make twenty bonds to other carbon atoms.

    • D. 

      Organic molecules are acidic.

  • 14. 
    If we find life elsewhere in the universe it is likely to look exactly like life on Earth because there is a limited number of proteins that can be formed.
    • A. 

      True

    • B. 

      False

  • 15. 
    The specific chemical that an enzyme will act on is called a(n) ...
    • A. 

      Substrate.

    • B. 

      Protein.

    • C. 

      Amino acid.

    • D. 

      Catalyst.

  • 16. 
    Which phrase best describes the effect of a catalyst on a chemical reaction?
    • A. 

      Decreases the rate of reaction

    • B. 

      Increases the temperature

    • C. 

      Decreases the activation energy

    • D. 

      Increases the volume of the reactants

  • 17. 
    What type of polymer is an enzyme?
    • A. 

      Protein

    • B. 

      Carbohydrate

    • C. 

      Lipid

    • D. 

      Nucleic Acid

  • 18. 
    What part is labeled B?
    • A. 

      Phosphate

    • B. 

      Ribose Sugar

    • C. 

      Nitrogen Base

    • D. 

      Nucleotide

  • 19. 
    What part is labeled C?
    • A. 

      Phosphate

    • B. 

      Ribose Sugar

    • C. 

      Nitrogen Base

    • D. 

      Nucleotide

  • 20. 
    What part is labeled A?
    • A. 

      Phosphate

    • B. 

      Ribose Sugar

    • C. 

      Nitrogen Base

    • D. 

      Nucleotide

  • 21. 
    This is a diagram of a monomer called a ___.
    • A. 

      Phosphate

    • B. 

      Ribose Sugar

    • C. 

      Nitrogen Base

    • D. 

      Nucleotide

  • 22. 
    This is a diagram of a monomer that is used to build ___.
    • A. 

      Carbohydrates

    • B. 

      Proteins

    • C. 

      Nucleic Acids

    • D. 

      Lipids

  • 23. 
    Which of the following is not one of the top elements in the body?
    • A. 

      Carbon

    • B. 

      Hydrogen

    • C. 

      Nitrogen

    • D. 

      Calcium

  • 24. 
    Which of the following is a "4%" element in the body?
    • A. 

      Carbon

    • B. 

      Calcium

    • C. 

      Iron

    • D. 

      Hydrogen

  • 25. 
    Which of the following trace elements can prevent goiters?
    • A. 

      Iron

    • B. 

      Iodine

    • C. 

      Manganese

    • D. 

      Zinc

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