Measuring Respiration To know how to measure respiration.
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Transcript of Measuring Respiration To know how to measure respiration.
Measuring RespirationMeasuring Respiration
To know how to measure respiration To know how to measure respiration
RespirationRespiration
Respiration takes place in the cells (it is not “breathing in and out”)
Respiration is the release of energy (from glucose) in our cells
Animals and plants respire
In the light plants respire, but produce the oxygen for this to occur by photosynthesis - the carbon dioxide they produce via respiration is used for photosynthesis
In the dark plants respire, producing carbon dioxide
Respiration takes place in the cells (it is not “breathing in and out”)
Respiration is the release of energy (from glucose) in our cells
Animals and plants respire
In the light plants respire, but produce the oxygen for this to occur by photosynthesis - the carbon dioxide they produce via respiration is used for photosynthesis
In the dark plants respire, producing carbon dioxide
EquationEquation
Remember, in a reaction: reactants products
glucose + oxygen carbon dioxide + water + (energy)
C6H12O6 + 6O2 6CO2 + 6H2O + (energy)
Respiration is the process of converting glucose to energy, occurring in every cell
Remember, in a reaction: reactants products
glucose + oxygen carbon dioxide + water + (energy)
C6H12O6 + 6O2 6CO2 + 6H2O + (energy)
Respiration is the process of converting glucose to energy, occurring in every cell
Respiration WordsearchRespiration Wordsearch
Have a go at the following wordsearch: -Have a go at the following wordsearch: -
Words to find: -
AerobicAnaerobicCarbohydraseCarbohydrateCarbon dioxideEnergyGlucoseLactic acidOxygenRespirationWater
Measuring RespirationMeasuring Respiration
How could you measure the rate of respiration?
During respiration the gas carbon dioxide is produced - testing for this would show if respiration occurred, and at what rate (limewater goes cloudy)
Water is also produced - we could measure this (how much we exhale)
Energy is also released during respiration, being used by our cells - you could monitor the activity of the organism (the heat released), although this is not completely accurate!
How could you measure the rate of respiration?
During respiration the gas carbon dioxide is produced - testing for this would show if respiration occurred, and at what rate (limewater goes cloudy)
Water is also produced - we could measure this (how much we exhale)
Energy is also released during respiration, being used by our cells - you could monitor the activity of the organism (the heat released), although this is not completely accurate!
ExperimentExperiment
You have a variety of experiments to carry out today, measuring the respiration rate at each
You will need to work in pairs / threes, moving from station to station
For each station you need to carry out the experiment, and write a brief summary in your book of the experiment, and what you found
E.g - station 1: measuring the temperature of people before and after exercise - after exercise a greater amount of respiration has taken place, and as a result the temperature changed (increased / decreased) because…
You have a variety of experiments to carry out today, measuring the respiration rate at each
You will need to work in pairs / threes, moving from station to station
For each station you need to carry out the experiment, and write a brief summary in your book of the experiment, and what you found
E.g - station 1: measuring the temperature of people before and after exercise - after exercise a greater amount of respiration has taken place, and as a result the temperature changed (increased / decreased) because…
Activity EVIDENCE respiration is happening
Beans ‘germinating’ in water
Plants in sunlight
‘Litter’ containing Woodlice in a beaker
YOU exercising
Yeast solution
DRY Beans
StationsStations
Germinating and non-germinating seed temperatures
Meal worms moving temperature and the room temperature
Your temperature before and after exercise
Pond weed in hydrogencarbonate indicator (in light and dark)• yellow / orange in presence of carbon dioxide• red / purple with no carbon dioxide
Yeast with delivery tube to limewater
Germinating and non-germinating seed temperatures
Meal worms moving temperature and the room temperature
Your temperature before and after exercise
Pond weed in hydrogencarbonate indicator (in light and dark)• yellow / orange in presence of carbon dioxide• red / purple with no carbon dioxide
Yeast with delivery tube to limewater