BIOL 111 Past Exam Questions With Correct Answers

BIOL 111 Past Exam Questions With
Correct Answers
Simple |diffusion |is |"driven" |by |__________, |while |active |transport |works |because |of |the |use |
of |__________?

a. |a |concentration |gradient; |proteins |(channel |or |carrier);

b. |a |concentration |gradient; |ATP

c. |osmosis; |ATP

d. |ATP; |a |concentration |gradient

proteins |(channel |or |carrier); |a |concentration |gradient |- |CORRECT |ANSWER✔✔-b. |a |
concentration |gradient; |ATP



COOH



Which |type |of |functional |group |is |depicted |above |(entire |picture, |not |just |one |part), |and |
which |type |of |molecule |would |you |find |it |in?



a. |amino |group, |amino |acids

b. |hydroxyl |group, |carbohydrates

c. |methyl |group, |proteins

d. |carboxyl |group, |fatty |acids

e. |carbonyl |group, |fatty |acids |- |CORRECT |ANSWER✔✔-d. |carboxyl |group, |fatty |acids



Element |imbalances |can |cause |significant |issues |for |all |living |organisms. |What |does |an |excess |
of |iron |(Fe) |cause |in |humans? |Pick |the |alliment |that |was |specifically |addressed |in |class.



a. |a |rare |type |of |blood |cancer

,b. |birth |defects

c. |goiters

d. |anemia

e. |hyperthyroidism |- |CORRECT |ANSWER✔✔-a. |a |rare |type |of |blood |cancer



The |Cell |Theory |is |one |of |the |4 |major |theories |in |biology. |Which |is |correct?

a. |Only |certain |cells |(like |neurons) |contain |hereditary |information

b. |All |cells |have |a |nucleus

c. |Chemical |reactions |necessary |for |life |occur |outside |of |the |cells |and |are |transported |in |
through |membrane |interactions

d. |All |organisms |are |made |up |of |at |least |one |cell

e. |All |cells |reproduce |sexually |- |CORRECT |ANSWER✔✔-d. |All |organisms |are |made |up |of |at |
least |one |cell



Electronegativity |is |the |attraction |of |a |particular |atom |for |electrons |in |a |covalent |bond. |Which |
of |the |following |is |true |about |electronegativity?

a. |More |electrons |= |less |electronegativity

b. |More |electrons |= |more |electronegativity

c. |Less |protons |= |more |electronegativity

d. |Less |electrons |= |more |electronegativity

e. |The |further |the |electrons |are |from |the |nucleus, |the |more |electronegative |it |is |- |CORRECT |
ANSWER✔✔-b. |More |electrons |= |more |electronegativity



Which |of |the |following |statements |is |true |about |isomers?

a. |Enantiomers |can |be |superimposed |upon |one |another.

b. |Enantiomers |are |quite |important |to |the |pharmaceutical |field |depending |on |their |biological |
effectiveness.

c. |Structural |isomers |have |the |same |arrangement, |but |different |molecular |formula.

,d. |Cis-trans |geometric |isomers |are |mirror |images |of |each |other.

e. |Vision |is |partly |based |off |of |structural |isomers |changing |from |straight |chained |to |branched.
|- |CORRECT |ANSWER✔✔-b. |Enantiomers |are |quite |important |to |the |pharmaceutical |field |


depending |on |their |biological |effectiveness.



Some |radioactive |iodide |salts |of |sodium, |including |sodium |iodide |(NaI), |have |
radiopharmaceutical |uses, |such |as |in |the |treatment |of |thyroid |cancer |and |hyperthyroidism. |
You |will |treat |your |patient |with |a |solution |of |NaI |that |you |made |by |dissolving |10.7g |NaI |in |
250mL |of |water. |What |is |the |molarity |of |the |NaI |solution |that |you |will |give |your |patient? |
(Note: |NaI |has |a |MW |of |149.89g/mol).

a. |0.286 |M

b. |0.071 |M

c. |28.6 |M

d. |0.71 |M

e. |1 |M |- |CORRECT |ANSWER✔✔-a. |0.286 |M



Which |of |the |following |is |the |best |definition |for |natural |selection?

a. |Survival |of |the |fittest

b. |Decent |with |modification

c. |Darwinism

d. |Only |the |strong |survive

e. |Differential |reproductive |success |- |CORRECT |ANSWER✔✔-e. |Differential |reproductive |
success



The |scientific |method |has |great |flexibility |in |the |order |of |operations. |Which |of |these |is |NOT |a |
step |in |the |process?

a. |Repeating |the |experiment

b. |Proving |your |hypothesis

c. |Observation

, d. |Communication

e. |Collecting |data |- |CORRECT |ANSWER✔✔-b. |Proving |your |hypothesis



There |is |a |tremendous |amount |of |variation |among |all |life. |However, |some |things |unite |
everything |from |the |smallest |bacteria |to |the |largest |mammal. |Which |of |the |following |is |NOT |
one |of |those |characteristics?

a. |All |living |organims |have |ribosomes.

b. |All |living |organims |share |and |use |the |same |20 |amino |acids.

c. |All |living |organims |evolve |via |natural |selection.

d. |All |living |organims |have |use |DNA |as |their |genetic |code |(As, |Cs, |Gs, |Ts).

e. |All |living |organims |have |mRNA |and |tRNA |to |make |functional |genes. |- |CORRECT |
ANSWER✔✔-c. |All |living |organims |evolve |via |natural |selection.



What |is |the |emergent |property |of |water |that |accounts |for |the |behavior |of |the |water |droplets |
on |the |leaf |of |this |Elephant |Ear |plant? |(droplets |are |hanging |onto |plant |leaf)

a. |Its |versatility |as |a |solvent

b. |Its |ability |to |expand |upon |freezing

c. |Its |low |viscosity

d. |Capillary |action |via |adhesion

e. |The |ability |to |moderate |temperature |- |CORRECT |ANSWER✔✔-d. |Capillary |action |via |
adhesion



Saline |is |a |very |common |solution |used |for |intravenous |injection |made |with |approximately |0.16
|M |solution |of |sodium |chloride |(MW |NaCl |= |58.44 |g/mol) |in |water. |How |much |sodium |chloride


|is |needed |to |prepare |250.0 |mL |of |saline |solution?



a. |9.35 |grams

b. |14.61 |grams

c. |29.22 |grams