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28 Sep 2019
Species of phytoplankton Conditions Rate of change in oxygen
concentration/µmol O2 h-1
Amphidinium carterae light 26.2
dark _ 7.50
Biddulphia aurita light 40.3
dark _5.10
Chaetoceros didymum light 26.1
dark _6.30
Using the experimental data shown above for Amphidiniumcarterae
calculate what percentage of the total energy assimilated in lightconditions
in 1 hour is used for respiration in this organism. Show yourworking clearly
and give your answer to the appropriate number of significantfigures. (Hint:
you will need to use the data from the dark condition as well asthe light
condition in your calculation.)
It is clear that there are some differences between the species inabove, but
all three species show the same overall pattern ofincrease/decrease in oxygen
concentration with time in the light/dark, respectively. Useyour
understanding of photosynthesis and respiration to explain whyunder some
conditions in the experiment the oxygen concentration increased (apositive
number in above) and under other conditions the oxygenconcentration
decreased (a negative number in above). (100â150 words)
Species of phytoplankton Conditions Rate of change in oxygen
concentration/µmol O2 h-1
Amphidinium carterae light 26.2
dark _ 7.50
Biddulphia aurita light 40.3
dark _5.10
Chaetoceros didymum light 26.1
dark _6.30
Using the experimental data shown above for Amphidiniumcarterae
calculate what percentage of the total energy assimilated in lightconditions
in 1 hour is used for respiration in this organism. Show yourworking clearly
and give your answer to the appropriate number of significantfigures. (Hint:
you will need to use the data from the dark condition as well asthe light
condition in your calculation.)
It is clear that there are some differences between the species inabove, but
all three species show the same overall pattern ofincrease/decrease in oxygen
concentration with time in the light/dark, respectively. Useyour
understanding of photosynthesis and respiration to explain whyunder some
conditions in the experiment the oxygen concentration increased (apositive
number in above) and under other conditions the oxygenconcentration
decreased (a negative number in above). (100â150 words)
concentration/µmol O2 h-1
Amphidinium carterae light 26.2
dark _ 7.50
Biddulphia aurita light 40.3
dark _5.10
Chaetoceros didymum light 26.1
dark _6.30
Using the experimental data shown above for Amphidiniumcarterae
calculate what percentage of the total energy assimilated in lightconditions
in 1 hour is used for respiration in this organism. Show yourworking clearly
and give your answer to the appropriate number of significantfigures. (Hint:
you will need to use the data from the dark condition as well asthe light
condition in your calculation.)
It is clear that there are some differences between the species inabove, but
all three species show the same overall pattern ofincrease/decrease in oxygen
concentration with time in the light/dark, respectively. Useyour
understanding of photosynthesis and respiration to explain whyunder some
conditions in the experiment the oxygen concentration increased (apositive
number in above) and under other conditions the oxygenconcentration
decreased (a negative number in above). (100â150 words)
Tod ThielLv2
28 Sep 2019
