BIOC 384 FINAL EXAM QUESTIONS
WITH CORRECT ANSWERS
The |birth |of |modern |biochemistry |can |be |traced |to |the
Question |1 |options:
end |of |the |19th |century.
end |of |the |20th |century.
beginning |of |the |19th |century.
beginning |of |the |21st |century. |- |CORRECT |ANSWER✔✔-end |of |the |19th |century.
Enzymes |function |as |reaction |catalysts |in |cells. |If |the |enzymes |were |removed |from |a |cell, |the |
rate |of |biochemical |reactions |would
Question |2 |options:
increase.
remain |the |same.
decrease.
It |is |impossible |to |know. |- |CORRECT |ANSWER✔✔-decrease.
The |essential |ions |calcium, |magnesium, |potassium, |and |sodium |are |all
Question |3 |options:
anions.
cations.
transition |metals.
halogens. |- |CORRECT |ANSWER✔✔-cations.
The |__________ |differentiates |amino |acids |from |one |another.
,Question |4 |options:
number |of |silane |groups
number |of |phosphoryl |groups
side |chains |attached |to |the |central |carbon
number |of |hydroxyl |groups |- |CORRECT |ANSWER✔✔-side |chains |attached |to |the |central |carbon
Why |are |fewer |polypeptide |sequences |encountered |biologically |than |are |theoretically |
possible?
Question |5 |options:
There |is |no |way |to |make |all |the |theoretical |possibilities.
The |phosphodiester |linkages |don't |allow |for |all |the |possibilities.
Not |all |have |useful |structural |and |functional |properties.
Not |all |of |the |possibilities |can |be |broken |down. |- |CORRECT |ANSWER✔✔-Not |all |have |useful |
structural |and |functional |properties.
If |a |plasma |membrane |is |hydrophobic, |what |kinds |of |amino |acids |are |MOST |likely |to |be |found |
in |the |membrane?
Question |6 |options:
hydrophilic |amino |acids
hydrophobic |amino |acids
polar |amino |acids
charged |amino |acids |- |CORRECT |ANSWER✔✔-hydrophobic |amino |acids
An |inherited |disease |comes |from |the |mutation |of |DNA |in |a |__________ |cell.
Question |7 |options:
somatic
germ-line
,adipose
blood |- |CORRECT |ANSWER✔✔-germ-line
The |RNA |world |model |is |based |on |the |hypothesis |that |__________ |is |stable.
Question |8 |options:
RNA
DNA
uracil
adenine |- |CORRECT |ANSWER✔✔-DNA
The |appearance |of |new |gene |speciation |is |an |example |of
Question |9 |options:
gene |multiplication.
gene |singulation.
gene |duplication.
random |mutation. |- |CORRECT |ANSWER✔✔-gene |singulation.
The |amino |acid |sequence |of |a |protein |determines |its |structure. |Which |of |the |following |
statements |is |true?
Question |10 |options:
Two |proteins |with |similar |amino |acid |sequence |should |have |similar |structures.
Two |proteins |with |different |amino |acid |sequences |will |have |identical |structures.
Two |proteins |with |similar |amino |acid |sequences |will |always |have |the |same |function |in |a |cell.
It |is |impossible |to |determine |how |proteins |will |fold |based |on |the |amino |acid |sequence |alone.
|- |CORRECT |ANSWER✔✔-Two |proteins |with |similar |amino |acid |sequence |should |have |similar |
structures.
, Which |of |the |following |is |NOT |a |common |functional |group?
Question |11 |options:
COOH
CH3
SH
CHO |- |CORRECT |ANSWER✔✔-CHO
The |proposal |that |DNA |is |a |double |helix |was |based |on |what |experimental |evidence?
Question |12 |options:
NMR
IR
HPLC
x-ray |crystallography |- |CORRECT |ANSWER✔✔-x-ray |crystallography
What |side |products |of |pyruvate |are |being |converted |into |alcohol |and |carbon |dioxide |by |yeast?
Question |13 |options:
CO |and |NADH
CO2 |and |NADH
CO2 |and |NAD+
CO |and |NAD+ |- |CORRECT |ANSWER✔✔-CO2 |and |NAD+
Pyruvate |decarboxylase |converts |pyruvate |into
Question |14 |options:
carbon |dioxide |and |acetaldehyde.
carbon |monoxide |and |acetaldehyde.
water |and |glucose.
WITH CORRECT ANSWERS
The |birth |of |modern |biochemistry |can |be |traced |to |the
Question |1 |options:
end |of |the |19th |century.
end |of |the |20th |century.
beginning |of |the |19th |century.
beginning |of |the |21st |century. |- |CORRECT |ANSWER✔✔-end |of |the |19th |century.
Enzymes |function |as |reaction |catalysts |in |cells. |If |the |enzymes |were |removed |from |a |cell, |the |
rate |of |biochemical |reactions |would
Question |2 |options:
increase.
remain |the |same.
decrease.
It |is |impossible |to |know. |- |CORRECT |ANSWER✔✔-decrease.
The |essential |ions |calcium, |magnesium, |potassium, |and |sodium |are |all
Question |3 |options:
anions.
cations.
transition |metals.
halogens. |- |CORRECT |ANSWER✔✔-cations.
The |__________ |differentiates |amino |acids |from |one |another.
,Question |4 |options:
number |of |silane |groups
number |of |phosphoryl |groups
side |chains |attached |to |the |central |carbon
number |of |hydroxyl |groups |- |CORRECT |ANSWER✔✔-side |chains |attached |to |the |central |carbon
Why |are |fewer |polypeptide |sequences |encountered |biologically |than |are |theoretically |
possible?
Question |5 |options:
There |is |no |way |to |make |all |the |theoretical |possibilities.
The |phosphodiester |linkages |don't |allow |for |all |the |possibilities.
Not |all |have |useful |structural |and |functional |properties.
Not |all |of |the |possibilities |can |be |broken |down. |- |CORRECT |ANSWER✔✔-Not |all |have |useful |
structural |and |functional |properties.
If |a |plasma |membrane |is |hydrophobic, |what |kinds |of |amino |acids |are |MOST |likely |to |be |found |
in |the |membrane?
Question |6 |options:
hydrophilic |amino |acids
hydrophobic |amino |acids
polar |amino |acids
charged |amino |acids |- |CORRECT |ANSWER✔✔-hydrophobic |amino |acids
An |inherited |disease |comes |from |the |mutation |of |DNA |in |a |__________ |cell.
Question |7 |options:
somatic
germ-line
,adipose
blood |- |CORRECT |ANSWER✔✔-germ-line
The |RNA |world |model |is |based |on |the |hypothesis |that |__________ |is |stable.
Question |8 |options:
RNA
DNA
uracil
adenine |- |CORRECT |ANSWER✔✔-DNA
The |appearance |of |new |gene |speciation |is |an |example |of
Question |9 |options:
gene |multiplication.
gene |singulation.
gene |duplication.
random |mutation. |- |CORRECT |ANSWER✔✔-gene |singulation.
The |amino |acid |sequence |of |a |protein |determines |its |structure. |Which |of |the |following |
statements |is |true?
Question |10 |options:
Two |proteins |with |similar |amino |acid |sequence |should |have |similar |structures.
Two |proteins |with |different |amino |acid |sequences |will |have |identical |structures.
Two |proteins |with |similar |amino |acid |sequences |will |always |have |the |same |function |in |a |cell.
It |is |impossible |to |determine |how |proteins |will |fold |based |on |the |amino |acid |sequence |alone.
|- |CORRECT |ANSWER✔✔-Two |proteins |with |similar |amino |acid |sequence |should |have |similar |
structures.
, Which |of |the |following |is |NOT |a |common |functional |group?
Question |11 |options:
COOH
CH3
SH
CHO |- |CORRECT |ANSWER✔✔-CHO
The |proposal |that |DNA |is |a |double |helix |was |based |on |what |experimental |evidence?
Question |12 |options:
NMR
IR
HPLC
x-ray |crystallography |- |CORRECT |ANSWER✔✔-x-ray |crystallography
What |side |products |of |pyruvate |are |being |converted |into |alcohol |and |carbon |dioxide |by |yeast?
Question |13 |options:
CO |and |NADH
CO2 |and |NADH
CO2 |and |NAD+
CO |and |NAD+ |- |CORRECT |ANSWER✔✔-CO2 |and |NAD+
Pyruvate |decarboxylase |converts |pyruvate |into
Question |14 |options:
carbon |dioxide |and |acetaldehyde.
carbon |monoxide |and |acetaldehyde.
water |and |glucose.
