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Factors That Affect Photosynthesis: Rate Bubbles/min)

This document provides instructions for an experiment to investigate how different factors affect the rate of photosynthesis. Students will use an online photosynthesis simulation to test variables like light intensity, color of light, temperature, and carbon dioxide levels. They will design experiments that test at least three levels of a factor across multiple trials. By counting oxygen bubbles produced per minute, students can determine the rate of photosynthesis and draw conclusions about how each factor impacts the rate. After individual experiments, student groups will discuss and compare their results.

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75 views2 pages

Factors That Affect Photosynthesis: Rate Bubbles/min)

This document provides instructions for an experiment to investigate how different factors affect the rate of photosynthesis. Students will use an online photosynthesis simulation to test variables like light intensity, color of light, temperature, and carbon dioxide levels. They will design experiments that test at least three levels of a factor across multiple trials. By counting oxygen bubbles produced per minute, students can determine the rate of photosynthesis and draw conclusions about how each factor impacts the rate. After individual experiments, student groups will discuss and compare their results.

Uploaded by

api-307736616
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Name______________________

Stream________________

FactorsThatAffectPhotosynthesis

Howdoyouthinkchangingvariousfactorswouldaffecttherateofphotosynthesis?Asatable
youwillresearchhowlightintensity,coloroflight,temperatureandcarbondioxideaffectthe
rateofphotosynthesis.Asshowninthechemicalequationbelow,oneoftheproductsof
photosynthesisisoxygen.Therefore,wecanmeasuretherateofphotosynthesisbymeasuring
theamountofoxygenproducedperminute.

Forthislab,youwilldesignanexperimentandthenperformusinganonlinephotosynthesis
simulation.Inthesimulation,whenyouseeoxygenbubblesbeingproduced,youknow
photosynthesisisoccurring.Bycountingthenumberofbubblesproducedinaminute,youcan
determinetherateofphotosynthesis(
rate=bubbles/min).

Whendesigningyourexperiment,makesuretotestmorethantwodifferentconditionsandhave
multipletrialsinordertomakeaconclusion.Forinstanceifyouaretestingtemperature,you
wanttotestatleastthreedifferenttemperatures(hot,warm,cold),andyouwouldwanttohave
multipletrialsateachtemperature.

Factoryouaretesting:

Giveabriefdescriptionofhowyouwillperformthisexperiment.

Whatareyourcontrolsinthisexperiment?

IndependentVariable:

DependentVariable:


Hypothesis:

DataTable:

Results
Whatconclusionscanyoumakefromthisexperiment?
IcanconcludethatIknowthis
because.(citespecificdatayougathered)

Asagroupdiscusswhateachofyouhavediscoveredfromyourindividualexperiments.After
eachpersoninyourgrouphassharedtheirresults,answerthefollowingquestions.

1. Basedonthesimulationexperiments,whatfactorscanaffecttherateofphotosynthesis
inaplant?Howdoyouknow?

2. Givenyourresults,describethetreatmentthatyouthinkwouldresultinthehighestrate
ofphotosynthesis.Explainwhy.

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