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    The Big Squeeze Lab

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    jett dean
    The document describes two experiments where students take turns squeezing a tennis ball for periods of 20 seconds over 10 trials. In the first experiment, they record the number of squeezes over each 20 second period. In the second experiment, they modify a variable like the squeeze/rest times or use their non-dominant hand. The purpose is to examine how muscle cells convert from aerobic to anaerobic respiration during prolonged exercise by observing changes in performance over multiple trials. Students analyze their results, discuss the differences between aerobic and anaerobic respiration, and explain muscle fatigue in terms of cellular processes.

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    The Big Squeeze Lab

    Uploaded by

    jett dean
    156 views3 pages
    The document describes two experiments where students take turns squeezing a tennis ball for periods of 20 seconds over 10 trials. In the first experiment, they record the number of squeezes over each 20 second period. In the second experiment, they modify a variable like the squeeze/rest times or use their non-dominant hand. The purpose is to examine how muscle cells convert from aerobic to anaerobic respiration during prolonged exercise by observing changes in performance over multiple trials. Students analyze their results, discuss the differences between aerobic and anaerobic respiration, and explain muscle fatigue in terms of cellular processes.

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    The Big Squeeze Lab.doc

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    The document describes two experiments where students take turns squeezing a tennis ball for periods of 20 seconds over 10 trials. In the first experiment, they record the number of squeezes over each 20 second period. In the second experiment, they modify a variable like the squeeze/rest times or use their non-dominant hand. The purpose is to examine how muscle cells convert from aerobic to anaerobic respiration during prolonged exercise by observing changes in performance over multiple trials. Students analyze their results, discuss the differences between aerobic and anaerobic respiration, and explain muscle fatigue in terms of cellular processes.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    156 views3 pages

    The Big Squeeze Lab

    Uploaded by

    jett dean
    The document describes two experiments where students take turns squeezing a tennis ball for periods of 20 seconds over 10 trials. In the first experiment, they record the number of squeezes over each 20 second period. In the second experiment, they modify a variable like the squeeze/rest times or use their non-dominant hand. The purpose is to examine how muscle cells convert from aerobic to anaerobic respiration during prolonged exercise by observing changes in performance over multiple trials. Students analyze their results, discuss the differences between aerobic and anaerobic respiration, and explain muscle fatigue in terms of cellular processes.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 3

    The​ ​Big​ ​Squeeze​​ ​Lab Name:​ ​ ​___________________________________

    Cell​ ​Energy​ ​-​ ​Anaerobic​ ​Respiration ​ ​ ​I​ ​worked​ ​with:​ ​___________________________________

    Introduction​:​ ​ ​As​ ​you​ ​know,​ ​there​ ​are​ ​two​ ​types​ ​of​ ​cellular​ ​respiration.
    Aerobic​ ​respiration​ ​is​ ​the​ ​breakdown​ ​of​ ​sugars​ ​in​ ​the​ ​presence​ ​of​ ​oxygen​ ​to
    produce​ ​ATP​ ​energy,​ ​CO​2​​ ​and​ ​H2​​ O.​ ​ ​Anaerobic​ ​respiration​ ​is​ ​the​ ​breakdown​ ​of
    sugars​ ​in​ ​the​ ​absence​ ​of​ ​oxygen​ ​to​ ​produce​ ​ATP​ ​energy.​ ​ ​There​ ​are​ ​two​ ​kinds​ ​of
    anaerobic​ ​respiration:​ ​ ​ ​alcoholic​ ​fermentation​ ​and​​ ​lactic​ ​acid​ ​fermentation​.​ ​ ​ ​In
    this​ ​lab​ ​we​ ​will​ ​be​ ​examining​ ​why​ ​we​ ​fatigue​ ​and​ ​get​ ​sore​ ​during​ ​prolonged
    exercise.​ ​ ​Partners​ ​(2)​ ​will​ ​have​ ​one​ ​tennis​ ​ball​ ​and​ ​take​ ​turns​ ​either​ ​squeezing​ ​or
    timing/recording.

    Objectives​:​ ​ ​By​ ​the​ ​end​ ​of​ ​this​ ​activity,​ ​you​ ​will​ ​be​ ​able​ ​to…
    •​ ​ ​Record​ ​and​ ​graph​ ​experimental​ ​data​ ​and​ ​manipulate​ ​an​ ​experiment​ ​with​ ​testable​ ​hypotheses.
    •​ ​ ​Determine​ ​when​ ​muscle​ ​cells​ ​convert​ ​from​ ​the​ ​aerobic​ ​respiration​ ​pathway​ ​to​ ​anaerobic​ ​respiration.
    •​ ​ ​Analyze​ ​the​ ​importance​ ​of​ ​the​ ​metabolic​ ​pathway​ ​of​ ​anaerobic​ ​respiration​ ​and​ ​its​ ​effect​ ​in​ ​muscle​ ​cells.

    Instructions​:​ ​ ​PART​ ​ONE


    1. ​ ​While​ ​1​ ​person​ ​squeezes​ ​(the​ ​“squeezer”)​ ​will​ ​count​ ​how​ ​many​ ​times​ ​they​ ​can​ ​fully​ ​squeeze​ ​a​ ​tennis​ ​ball​ ​over​ ​a
    20​ ​second​ ​time​ ​period​.
    2. The​ ​“squeezer”​ ​will​ ​rest​ ​for​ ​20​ ​seconds​ ​between​ ​each​ ​of​ ​the​ ​ten​ ​trials​ ​and​ ​write​ ​down​ ​their​ ​count.
    3. The​ ​“timer”​ ​will​ ​start​ ​the​ ​stop​ ​watch​ ​and​ ​time​ ​each​ ​20​ ​second​ ​trial​ ​and​ ​each​ ​20​ ​second​ ​rest​ ​period​.
    4. After​ ​each​ ​trial​ ​the​ ​“timer”​ ​will​ ​jot​ ​down​ ​how​ ​many​ ​squeezes​ ​their​ ​partner​ ​did​ ​in​ ​the​ ​elapsed​ ​time​ ​on​ ​their
    partner’s​ ​Data​ ​table​ ​One.

    Data​ ​Table​ ​One:


    Trial​ ​1 Trial​ ​2 Trial​ ​3 Trial​ ​4 Trial​ ​5 Trial​ ​6 Trial​ ​7 Trial​ ​8 Trial​ ​9 Trial​ ​10
    #​ ​of​ ​squeezes​ ​in
    20​ ​seconds

    Graph​ ​#​ ​1​:​ ​ ​Be​ ​sure​ ​to​ ​include​ ​a​ ​title​ ​(remember​ ​you​ ​are​ ​comparing​​ ​trials!)​ ​ ​Write​ ​in​ ​an​ ​appropriate​ ​scale​ ​for​ ​the​ ​y-axis.

    Title: ___________________________________________________
    Instructions​:​ ​ ​PART​ ​TWO
    5. ​ ​Let’s​ ​change​ ​things​ ​up​ ​a​ ​bit.​ ​ ​Decide​ ​with​ ​your​ ​partner​ ​on​ ​a​ ​new​ ​amount​ ​of​ ​time​ ​to​ ​“squeeze,”​ ​“rest,”​ ​or​ ​some
    other​ ​variable​ ​(switching​ ​to​ ​the​ ​less​ ​dominant​ ​hand,​ ​a​ ​partner​ ​of​ ​a​ ​different​ ​gender,​ ​etc.)

    Describe​ ​the​ ​variable​ ​you​ ​will​ ​manipulate​ ​here: ________________________________________________________

    Hypothesis​​ ​:​ ​ ​How​ ​do​ ​you​ ​think​ ​that​ ​your​ ​new​ ​“squeeze”​ ​and​ ​“rest”​ ​times​ ​(or​ ​other​ ​variable)​ ​will​ ​affect​ ​your​ ​results?

    Data​ ​Table​ ​Two:​​ ​ ​Put​ ​your​ ​ideas​ ​to​ ​the​ ​test!​ ​ ​Make​ ​sure​ ​to​ ​fill​ ​out​ ​your​ ​data​ ​table​ ​(for​ ​each​ ​person)​ ​below.
    Trial​ ​1 Trial​ ​2 Trial​ ​3 Trial​ ​4 Trial​ ​5 Trial​ ​6 Trial​ ​7 Trial​ ​8 Trial​ ​9 Trial​ ​10
    #​ ​of​ ​squeezes​ ​in
    ______​ ​seconds

    Now,​ ​graph​ ​your​ ​results​ ​again!

    ___________________________________

    Analysis​ ​and​ ​Conclusion​ ​Questions:​​ ​ ​Please​ ​answer​ ​the​ ​following​ ​questions.

    1. What​ ​do​ ​“aerobic”​ ​and​ ​“anaerobic”​ ​mean?

    2. What​ ​produces​ ​more​ ​ATP​ ​energy?​ ​ ​Aerobic​ ​or​ ​Anaerobic​ ​Respiration?


    3. What​ ​type​ ​of​ ​cellular​ ​respiration​ ​were​ ​your​ ​hand​ ​muscles​ ​using​ ​before​ ​squeezing​ ​the​ ​tennis​ ​ball​ ​and​ ​what​ ​type
    of​ ​cellular​ ​respiration​ ​were​ ​your​ ​hand​ ​muscles​ ​using​ ​once​ ​you​ ​started​ ​to​ ​get​ ​sore​?)

    Before:​ ​ ​___________________________________ After:​ ​ ​________________________________________

    4. Did​ ​squeezing​ ​the​ ​tennis​ ​ball​ ​get​ ​easier​ ​or​ ​harder​ ​to​ ​do​ ​over​ ​the​ ​ten​ ​trials?​ ​ ​Explain.

    5. ​ ​At​ ​what​ ​point​ ​in​ ​experiment​ ​one​ ​do​ ​you​ ​think​ ​that​ ​your​ ​muscle​ ​cells​ ​converted​ ​from​ ​aerobic​ ​respiration​ ​to​ ​lactic
    acid​ ​fermentation?​ ​ ​(Refer​ ​to​ ​your​ ​graph​ ​number​ ​one.)

    6. At​ ​what​ ​point​ ​in​ ​experiment​ ​two​ ​do​ ​you​ ​think​ ​that​ ​your​ ​muscle​ ​cells​ ​converted​ ​from​ ​aerobic​ ​respiration​ ​to​ ​lactic
    acid​ ​fermentation?​ ​ ​(Refer​ ​to​ ​your​ ​graph​ ​number​ ​two.)

    7. Why​ ​did​ ​your​ ​muscles​ ​start​ ​to​ ​get​ ​sore​ ​after​ ​a​ ​while?​ ​ ​ ​(See​ ​question​ ​1​ ​under​ ​the​ ​PRODUCTS​ ​section.)

    Extension​ ​Questions​:​ ​ ​Please​ ​answer​ ​the​ ​following​ ​questions.

    8. ​ ​What​ ​were​ ​the​ ​differences​ ​between​ ​your​ ​two​ ​experiments?​ ​ ​How​ ​did​ ​changing​ ​a​ ​variable​ ​(i.e.​ ​squeeze​ ​time,
    rest​ ​time​ ​or​ ​some​ ​other​ ​variable​ ​you​ ​chose)​ ​lead​ ​to​ ​different​ ​results?​ ​ ​Discuss​ ​your​ ​findings​ ​here.

    9. What​ ​would​ ​happen​ ​if​ ​you​ ​did​ ​not​ ​stop​ ​squeezing​ ​the​ ​tennis​ ​ball?​ ​ ​What​ ​do​ ​you​ ​think​ ​would​ ​happen​ ​to​ ​your
    muscle​ ​cells​ ​and​ ​body​ ​as​ ​a​ ​whole?​ ​ ​Could​ ​you​ ​survive​ ​off​ ​of​ ​lactic​ ​acid​ ​fermentation​ ​alone?

    10. Explain​ ​how​ ​the​ ​food​ ​you​ ​ate​ ​today​ ​contributed​ ​to​ ​the​ ​energy​ ​you​ ​used​ ​for​ ​this​ ​lab:

    11. What​ ​did​ ​you​ ​learn​ ​today​ ​that​ ​you​ ​didn’t​ ​know​ ​before?

    12. After​ ​today’s​ ​lesson​ ​on​ ​cellular​ ​respiration,​ ​what​ ​is​ ​still​ ​“cloudy”​ ​or​ ​difficult​ ​for​ ​you​ ​to​ ​understand?

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