BIO 338 Final Exam Questions with correct
answers
If |resting |VO2 |is |3.5 |ml/kg/min, |the |VO2 |for |pedaling |with |no |resistance |is |3.5 |ml/kg/min. |And |the
|VO2 |of |pedaling |against |an |external |load |is |(1.8ml |O2 |x |kgm)/mass |then |what |is |the |Vo2 |of |an
|individual |cycling |at |800 |kg/min |who |weighs |77 |kg? |- |VERIFIED |ANSWER✔✔-25.7 |ml/kg/min |- |1.8 |x
|800 |/ |77
) |How |do |we |get |energy |from |atp? |- |VERIFIED |ANSWER✔✔-All |of |the |above |- |the |distance |through
|which |force |acts, |Nm, |J
Where |in |the |cell |do |beta |oxidation, |krebs, |and |ETC |take |place? |- |VERIFIED |ANSWER✔✔-Mitochondria
How |can |you |use |direct |calorimetry |to |quantify |metabolic |rate? |- |VERIFIED |ANSWER✔✔-By |measuring
|heat |production
When |homeostasis |is |maintained |it |means |that |- |VERIFIED |ANSWER✔✔-The |person |is |at |rest |and |the
|parameter |of |interest |is |relatively |constant |around |a |value, |not |necessarily |unchanging
7) |In |a |biological |control |system, |the |control |center |is |responsible |for: |- |VERIFIED |ANSWER✔✔-
Initiating |response
A |high |gain |negative |feedback |system |- |VERIFIED |ANSWER✔✔-Is |more |capable |of |correcting |a
|disturbance |in |homeostasis |than |a |low |gain |system
True |or |false: |As |exercise |intensity |increases, |reliance |on |carbohydrates |tend |to |decrease |- |VERIFIED
|ANSWER✔✔-False
True |or |false: |Lactate |removal |following |strenuous |exercise |can |be |more |quickly |eliminated |if |light
|exercise |(~35% |Vo2 |max) |is |continued |for |an |additional |20 |minutes |- |VERIFIED |ANSWER✔✔-True
,Andy |is |lying |down |relaxing |and |has |a |mean |arterial |blood |pressure |of |90mmhg. |He |quickly |stands |up
|and |his |mean |arterial |blood |pressure |decreases |to |75 |mmhg. |The |nervous |system |quickly |responds
|and |the |result |is |an |increase |in |andy's |mean |arterial |blood |pressure |back |to |normal |(95mmhg). |This
|is |an |example |of |what |feedback |loop? |- |VERIFIED |ANSWER✔✔-Negative
Oxidizing |agent |is |the |molecule |that |_____ |the |electron |- |VERIFIED |ANSWER✔✔-Accepts
What |does |phosphorylate |mean? |- |VERIFIED |ANSWER✔✔-Addition |of |a |phosphate |group
Which |of |the |following |is |an |example |of |an |exergonic |reaction? |- |VERIFIED |ANSWER✔✔-Release |of
|ATP |to |convert |1, |3-biphosphoglycerate |to |3-phosphoglycerate
What |is |the |definition |of |activation |energy? |- |VERIFIED |ANSWER✔✔-Energy |required |to |initiate |a
|chemical |reaction
During |exercise |body |temperature |increases |modestly. |What |effect |does |this |have |on |enzyme
|activity? |- |VERIFIED |ANSWER✔✔-Increases
An |individual |goes |from |standing |to |walking. |Which |metabolic |pathway |is |used |to |fuel |the |beginning
|of |this |exercise |- |VERIFIED |ANSWER✔✔-ATP-PC |system
During |the |energy |investment |phase |of |glycolysis |(using |glucose) |______ |ATP |are |invested |- |VERIFIED
|ANSWER✔✔-2
Atp |production |increases |to |meet |demands |of |exercise. |Once |exercise |stops, |the |increase |in |ATP
|concentration |in |the |muscle |does |what |to |the |rate |of |atp |production? |- |VERIFIED |ANSWER✔✔-
Decreases
How |long |could |one |exercise |if |all |of |the |atp |stores |and |all |of |the |pc |stores |were |used |up? |- |VERIFIED
|ANSWER✔✔-20-25 |seconds
, Which |is |not |a |reason |blood |lactate |begins |to |increase |rapidly |during |incremental |exercise? |-
|VERIFIED |ANSWER✔✔-De |recruitment |of |slow |twitch |fibers
What |is |purpose |of |krebs |cycle? |- |VERIFIED |ANSWER✔✔-Liberate |electrons |to |be |shuttled |to |ETC
Where |does |majority |of |aerobic |at |production |occur? |- |VERIFIED |ANSWER✔✔-ETC
Aerobic |energy |production |implies |O2 |is |required. |At |what |step |does |O2 |directly |participate? |-
|VERIFIED |ANSWER✔✔-Final |electron |acceptor |of |ETC
Jim |walks |on |treadmill |with |a |5% |grade |at |speed |of |85 |m/min. |What |is |his |approximate |Vo2? |-
|VERIFIED |ANSWER✔✔-Horizontal |Vo2 |(walk)= |0.1 |ml/kg/min |(walk |or |0.2 |for |run) |*speed |(m/min) |+
|resting |VO2 |(mL/kg/min); |vertical |Vo2(ml/kg/min) |= |1.8 |* |speed |(m/min) |* |%grade |a) |19.7 |ml/kg/min
what |is |the |rate |limiting |enzyme |of |krebs |cycle? |- |VERIFIED |ANSWER✔✔-Isocitrate |dehydrogenase
which |of |the |following |is |true |of |rate |limiting |enzymes |in |general |(specific |to |metabolism) |- |VERIFIED
|ANSWER✔✔-All |of |the |above |- |located |early |in |pathway, |controlled |by |modulators, |classic |inhibitor
|of |high |ATP |levels
what |is |rate |limiting |enzyme |of |glycolysis |- |VERIFIED |ANSWER✔✔-Phosphofructokinase |(PFK)
29) |what |is |gross |# |of |ATP |produced |from |glycolysis |when |glycogen |is |the |substrate |used |- |VERIFIED
|ANSWER✔✔-4
consider |krebs |cycle. |We |have |2 |primary |electron |accepting |molecules |(NAD |and |FAD). |which
|molecule |is |more |energy |rich |and |what |is |the |ATP |output |at |the |end |of |the |ETC. |- |VERIFIED
|ANSWER✔✔-NADH; |2.5 |molecules |of |ATP
if |molecule |of |glucose |underwent |complete |AEROBIC |breakdown |how |many |atp |generated? |-
|VERIFIED |ANSWER✔✔-32 |molecules |of |ATP
answers
If |resting |VO2 |is |3.5 |ml/kg/min, |the |VO2 |for |pedaling |with |no |resistance |is |3.5 |ml/kg/min. |And |the
|VO2 |of |pedaling |against |an |external |load |is |(1.8ml |O2 |x |kgm)/mass |then |what |is |the |Vo2 |of |an
|individual |cycling |at |800 |kg/min |who |weighs |77 |kg? |- |VERIFIED |ANSWER✔✔-25.7 |ml/kg/min |- |1.8 |x
|800 |/ |77
) |How |do |we |get |energy |from |atp? |- |VERIFIED |ANSWER✔✔-All |of |the |above |- |the |distance |through
|which |force |acts, |Nm, |J
Where |in |the |cell |do |beta |oxidation, |krebs, |and |ETC |take |place? |- |VERIFIED |ANSWER✔✔-Mitochondria
How |can |you |use |direct |calorimetry |to |quantify |metabolic |rate? |- |VERIFIED |ANSWER✔✔-By |measuring
|heat |production
When |homeostasis |is |maintained |it |means |that |- |VERIFIED |ANSWER✔✔-The |person |is |at |rest |and |the
|parameter |of |interest |is |relatively |constant |around |a |value, |not |necessarily |unchanging
7) |In |a |biological |control |system, |the |control |center |is |responsible |for: |- |VERIFIED |ANSWER✔✔-
Initiating |response
A |high |gain |negative |feedback |system |- |VERIFIED |ANSWER✔✔-Is |more |capable |of |correcting |a
|disturbance |in |homeostasis |than |a |low |gain |system
True |or |false: |As |exercise |intensity |increases, |reliance |on |carbohydrates |tend |to |decrease |- |VERIFIED
|ANSWER✔✔-False
True |or |false: |Lactate |removal |following |strenuous |exercise |can |be |more |quickly |eliminated |if |light
|exercise |(~35% |Vo2 |max) |is |continued |for |an |additional |20 |minutes |- |VERIFIED |ANSWER✔✔-True
,Andy |is |lying |down |relaxing |and |has |a |mean |arterial |blood |pressure |of |90mmhg. |He |quickly |stands |up
|and |his |mean |arterial |blood |pressure |decreases |to |75 |mmhg. |The |nervous |system |quickly |responds
|and |the |result |is |an |increase |in |andy's |mean |arterial |blood |pressure |back |to |normal |(95mmhg). |This
|is |an |example |of |what |feedback |loop? |- |VERIFIED |ANSWER✔✔-Negative
Oxidizing |agent |is |the |molecule |that |_____ |the |electron |- |VERIFIED |ANSWER✔✔-Accepts
What |does |phosphorylate |mean? |- |VERIFIED |ANSWER✔✔-Addition |of |a |phosphate |group
Which |of |the |following |is |an |example |of |an |exergonic |reaction? |- |VERIFIED |ANSWER✔✔-Release |of
|ATP |to |convert |1, |3-biphosphoglycerate |to |3-phosphoglycerate
What |is |the |definition |of |activation |energy? |- |VERIFIED |ANSWER✔✔-Energy |required |to |initiate |a
|chemical |reaction
During |exercise |body |temperature |increases |modestly. |What |effect |does |this |have |on |enzyme
|activity? |- |VERIFIED |ANSWER✔✔-Increases
An |individual |goes |from |standing |to |walking. |Which |metabolic |pathway |is |used |to |fuel |the |beginning
|of |this |exercise |- |VERIFIED |ANSWER✔✔-ATP-PC |system
During |the |energy |investment |phase |of |glycolysis |(using |glucose) |______ |ATP |are |invested |- |VERIFIED
|ANSWER✔✔-2
Atp |production |increases |to |meet |demands |of |exercise. |Once |exercise |stops, |the |increase |in |ATP
|concentration |in |the |muscle |does |what |to |the |rate |of |atp |production? |- |VERIFIED |ANSWER✔✔-
Decreases
How |long |could |one |exercise |if |all |of |the |atp |stores |and |all |of |the |pc |stores |were |used |up? |- |VERIFIED
|ANSWER✔✔-20-25 |seconds
, Which |is |not |a |reason |blood |lactate |begins |to |increase |rapidly |during |incremental |exercise? |-
|VERIFIED |ANSWER✔✔-De |recruitment |of |slow |twitch |fibers
What |is |purpose |of |krebs |cycle? |- |VERIFIED |ANSWER✔✔-Liberate |electrons |to |be |shuttled |to |ETC
Where |does |majority |of |aerobic |at |production |occur? |- |VERIFIED |ANSWER✔✔-ETC
Aerobic |energy |production |implies |O2 |is |required. |At |what |step |does |O2 |directly |participate? |-
|VERIFIED |ANSWER✔✔-Final |electron |acceptor |of |ETC
Jim |walks |on |treadmill |with |a |5% |grade |at |speed |of |85 |m/min. |What |is |his |approximate |Vo2? |-
|VERIFIED |ANSWER✔✔-Horizontal |Vo2 |(walk)= |0.1 |ml/kg/min |(walk |or |0.2 |for |run) |*speed |(m/min) |+
|resting |VO2 |(mL/kg/min); |vertical |Vo2(ml/kg/min) |= |1.8 |* |speed |(m/min) |* |%grade |a) |19.7 |ml/kg/min
what |is |the |rate |limiting |enzyme |of |krebs |cycle? |- |VERIFIED |ANSWER✔✔-Isocitrate |dehydrogenase
which |of |the |following |is |true |of |rate |limiting |enzymes |in |general |(specific |to |metabolism) |- |VERIFIED
|ANSWER✔✔-All |of |the |above |- |located |early |in |pathway, |controlled |by |modulators, |classic |inhibitor
|of |high |ATP |levels
what |is |rate |limiting |enzyme |of |glycolysis |- |VERIFIED |ANSWER✔✔-Phosphofructokinase |(PFK)
29) |what |is |gross |# |of |ATP |produced |from |glycolysis |when |glycogen |is |the |substrate |used |- |VERIFIED
|ANSWER✔✔-4
consider |krebs |cycle. |We |have |2 |primary |electron |accepting |molecules |(NAD |and |FAD). |which
|molecule |is |more |energy |rich |and |what |is |the |ATP |output |at |the |end |of |the |ETC. |- |VERIFIED
|ANSWER✔✔-NADH; |2.5 |molecules |of |ATP
if |molecule |of |glucose |underwent |complete |AEROBIC |breakdown |how |many |atp |generated? |-
|VERIFIED |ANSWER✔✔-32 |molecules |of |ATP
