
Photosynthesis and Respiration Experiment

Interactive Video
•
Biology, Science, Chemistry
•
6th - 10th Grade
•
Hard

Lucas Foster
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary role of carbon dioxide in the processes of photosynthesis and respiration?
It acts as a catalyst for the reactions.
It is a reactant in photosynthesis and a product in respiration.
It is a product in photosynthesis and a reactant in respiration.
It provides energy for the reactions.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What color does bromothymol blue turn at a pH below 6?
Blue
Red
Yellow
Green
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is bromothymol blue a suitable indicator for this experiment?
It is the cheapest indicator available.
It is the only indicator that turns red at high pH.
It changes color at pH levels where most biological reactions occur.
It remains colorless in all pH levels.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of wrapping one plant vial in tinfoil during the experiment?
To keep the plant warm.
To enhance the color change of the indicator.
To prevent evaporation of water.
To block light and prevent photosynthesis.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What initial color should the vials be if the water is at a neutral pH?
Blue
Yellow
Green
Red
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What color change is observed in the light plant vials by the end of the experiment?
Blue to red
Green to yellow
Green to blue
Yellow to blue
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do the control vials remain green throughout the experiment?
They do not contain a plant to alter carbon dioxide levels.
They are not exposed to light.
They contain a different plant species.
They are kept at a constant temperature.
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