BIOL 1001 Exam 1 Kessler exam with correct answers.

BIOL 1001 Exam 1 Kessler exam with correct
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answers



How |can |you |differentiate |between |atomic |number |and |mass |number |of |an |atom?

a) |Atomic |number |is |the |number |of |protons |while |mass |number |is |the |number |of |protons |+ |electrons

b) |Atomic |number |is |the |number |of |protons |while |mass |number |is |the |number |of |protons |+ |neutrons

c) |Atomic |number |is |the |number |of |protons |while |mass |number |is |the |number |of |neutrons |+ |
electrons

d) |Atomic |number |is |the |number |of |neutrons |while |mass |number |is |the |number |of |protons

e) |Atomic |number |is |the |number |of |protons |while |mass |number |is |the |number |of |neutrons. |- |✔✔b) |
Atomic |number |is |the |number |of |protons |while |mass |number |is |the |number |of |protons |+ |neutrons



If |an |unknown |compound |is |made |up |of |carbons, |hydrogens, |and |oxygens |in |a |1:2:1 |ratio, |you |
immediately |know |that |this |compound |is |a...

a) |Protein

b) |Carbohydrate

c) |Lipid

d) |Nucleic |Acid

e) |More |than |one |of |these |- |✔✔b) |Carbohydrate



A |covalent |bond |is |the |sharing |of |________ |between |atoms |while |an |ionic |bond |is |the |________. |

a) |neutrons; |sharing |of |electrons

b) |Electrons; |electric |attraction |between |two |atoms

c) |Protons; |electric |attraction |between |two |atoms

d) |Protons; |sharing |of |electrons

e) |electrons; |transfer |of |electrons |from |one |atom |to |another |- |✔✔b) |Electrons; |electric |attraction |
between |two |atoms

, Which |of |the |following |compounds/bonds |is |a |direct |result |of |a |dehydration |reaction?

a) |Disaccharide

b) |Peptide |bond

c) |Hydrogen |bond

d) |More |than |one |the |above

e) |All |of |the |above |- |✔✔d) |More |than |one |of |the |above



What |happens |when |an |unsaturated |fat |is |fully |hydrogenated?

a) |Hydrogen |is |added |to |the |fatty |acid |chain

b) |The |melting |point |is |raised

c) |The |fatty |acid |chain |is |straightened

d) |A |and |C

e) |All |of |the |above |- |✔✔e) |All |of |the |above |(Hydrogen |is |added |to |the |fatty |acid |chain, |the |melting |
point |is |raised, |the |fatty |acid |chain |is |straightened)



Irn- |Bru |is |a |popuular |soft |drink |in |Scotland. |Us |Scots |love |it, |but |many |others |just |don't |"get |it", |
arguing |that |it |tastes |odd. |Compared |to |the |pH |of |Coke |(around |3.0), |Irn-Bru |tests |at |a |reasonable |pH
|of |5.0. |So, |I'm |arguing |back |that |regardless |the |odd |taste, |Irn-Bru |is |healthier |for |teeth! |What |is |the |

H+ |ion |concentration |difference |between |Irn-Bru |and |Coke?

a) |Coke |has |100x |more |H+'s

b) |Irn-Bru |has |100x |more |H+'s

c) |Coke |has |1000x |more |H+'s |

d) |Coke |has |200x |more |H+'s |

e) |Irn-Bru |has |200x |more |H+'s |- |✔✔a) |Coke |has |100x |more |H+'s



In |order |to |market |Irn-Bru |in |the |United |States, |you |want |to |conduct |a |controlled |experiment |to |
prove |that |it |is |better |for |one's |teeth |than |Coke. |You |use |extracted |teeth |and |quantify |the |amount |of
|enamel |erosion |in |a |24-hour |period. |You |then |conduct |a |statistical |test |to |determine |if |Irn-Bru |

eroded |the |enamel |less |than |Coke. |What |would |the |null |hypothesis |be |in |this |particular |experiment?

a) |Coke |will |cause |more |enamel |erosion |than |Irn-Bru.