Biotechnology Chapter 2

25 Questions

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Biotechnology Chapter 2

Chapter 2 multiple choice quiz using the book Biotechnology: Science for the New Millenium


Questions and Answers
  • 1. 
    All living things do all of the following except:
    • A. 

      Grow and reproduce

    • B. 

      Breakdown food and produce waste

    • C. 

      Communicate

    • D. 

      Respond to stimuli

  • 2. 
    What are the most common molecules in cells?
    • A. 

      Sugars

    • B. 

      Lipids

    • C. 

      Proteins

    • D. 

      Nucleic Acids

  • 3. 
    Membrane proteins may have any of the following functions except:
    • A. 

      Transport molecules through the cell

    • B. 

      Synthesize phospholipids

    • C. 

      Identify other molecules or be recognized by other molecules

    • D. 

      Maintain cell shape

  • 4. 
    A DNA message gets transcribed into
    • A. 

      An amino acid message

    • B. 

      A polypeptide

    • C. 

      An mRNA message

    • D. 

      A lipid

  • 5. 
    Cells that undergo anaerobic respiration produce ______________ per molecule of glucose.
    • A. 

      More ATP

    • B. 

      Less ATP

    • C. 

      No ATP

    • D. 

      The same amount of ATP as cells that undergo aerobic respiration

  • 6. 
    Amino acids are linked together to form
    • A. 

      Ribosomes

    • B. 

      Nucleic acids

    • C. 

      Polysaccharides

    • D. 

      Polypeptides.

  • 7. 
    By the process of translation,
    • A. 

      Amino acids are connected together in the order specified by the mRNA molecule.

    • B. 

      Ribosomes link nucleic acids together in polypeptide chains.

    • C. 

      Molecules are transported out of the cell.

    • D. 

      The DNA code isread and encoded into a messenger RNA molecule.

  • 8. 
    All of the following are considered benefits of recombinant insulin over therapeutic insulin derived from livestock except:
    • A. 

      Some patients have severe allergies to livestock insulin.

    • B. 

      Some livestock insulin does not perform well in humans.

    • C. 

      The price and availability of livestock insulin varies.

    • D. 

      Livestock insulin may cause cowpox.

  • 9. 
    Which cellsneed to have the most mitochondria?
    • A. 

      E. coli

    • B. 

      Eppithelial cells

    • C. 

      Muscle cells

    • D. 

      Liver cells

  • 10. 
    Polysaccharides are useful for
    • A. 

      Transporting molecules throughout the cell.

    • B. 

      Recognition of receptor proteins on other cells

    • C. 

      Providing structure and energy storage within cells

    • D. 

      All of the above

  • 11. 
    Which of the following are mammalian cells grown in large-scale cultures for biotechnology purposes?
    • A. 

      E. coli

    • B. 

      Yeast

    • C. 

      CHO cells

    • D. 

      Bread mold

  • 12. 
    What is meant by cell specialization?
    • A. 

      Different cell lines (CHO and HeLa cells, for example) are more suited to producing certain kinds of recombinant proteins.

    • B. 

      Prokaryotic cells specialize in certain tasks and can therefore grow more rapidly than eukaryotic cells.

    • C. 

      There is great cell variety in multicellular organisms in which different kinds ofcells have different jobs to do.

    • D. 

      All of the above.

  • 13. 
    Glucose is a
    • A. 

      Peptide.

    • B. 

      Polysaccharide.

    • C. 

      Disaccharide.

    • D. 

      Monosaccharide.

  • 14. 
    What structures produce cellular energy in plants?
    • A. 

      Ribosomes and glucose.

    • B. 

      Mitochondria and chloroplasts.

    • C. 

      Glucose and ATP.

    • D. 

      Cytoplasm and plasma membrane.

  • 15. 
    Lipids are composed mostly of what atoms?
    • A. 

      Oxygen and nitrogen.

    • B. 

      Hydrogen, oxygen, and nitrogen.

    • C. 

      Carbon and hydrogen.

    • D. 

      Carbon, hydrogen, and oxygen.

  • 16. 
    Phospholipids are found in all of the following except:
    • A. 

      Chromosomes.

    • B. 

      The endoplasmic reticulum.

    • C. 

      Organelle membranes.

    • D. 

      Cell membranes.

  • 17. 
    Multicellular organisms arrange their cells into functional units.  Which of the following are examples?
    • A. 

      Tissues and organs

    • B. 

      Chloroplasts and Mitochondria

    • C. 

      Nucleic acids and aminoacids

    • D. 

      Macromolecules and Proteins

  • 18. 
    The hydrophilic ends of phospholipid molecules
    • A. 

      Face each other.

    • B. 

      Point away from each other.

    • C. 

      Twist in a spiral.

    • D. 

      Form the interior area of lipid bilayers.

  • 19. 
    Organic molecules must contain what element?
    • A. 

      Oxygen

    • B. 

      Carbon

    • C. 

      Nitrogen

    • D. 

      Hydrogen

  • 20. 
    Which of the following is a disaccharide?
    • A. 

      Sucrose

    • B. 

      Fructose

    • C. 

      Glucose

    • D. 

      Amylose

  • 21. 
    How docarbohydrates affect DNA isolation from plant cells?
    • A. 

      They cause the DNA to degrade.

    • B. 

      They are sticky and interfere with the purification process

    • C. 

      They are easily removed with a simple centrifugation step.

    • D. 

      They bind to the proteins and are removed during the protein purification step.

  • 22. 
    About  how many proteins are found in a typical cell?
    • A. 

      20

    • B. 

      200

    • C. 

      2000

    • D. 

      20,000

  • 23. 
    Steroids are molecules that can act as
    • A. 

      Venom.

    • B. 

      Hormones.

    • C. 

      Pigments.

    • D. 

      All of the above

  • 24. 
    The monomers of proteins are called
    • A. 

      Amino acids

    • B. 

      Peptides

    • C. 

      Nucleic acids

    • D. 

      Enzymes

  • 25. 
    All of the followign influence the way a polypeptide folds into a functional protein except:
    • A. 

      The order of amino acids

    • B. 

      The amino acid R-groups

    • C. 

      The interaction between amino acids

    • D. 

      The central carbon of each amino acid.