WorksheetsNearpod Rate of Photosynthesis
Total questions: 17
Worksheet time: 20mins
Which of the following affects a plants rate of photosynthesis.
Amount of products available
Amount of reactants available
Which of the following could you manipulate to alter the rate of photosynthesis? (3 answers)
Amount of glucose given to a plant
Light intensity a plant recieves
How much water is in the given soil
Amount of oxygen produced by the plant
Amount of Carbon Dioxide available in an environment
If you were designing your own experiment, which of the following could you test for to make sure your plant is performing photosynthesis?
Amount of CO2 available
Amount of Oxygen bubbles produced
Amount of light given
Amount of Water received
If a toxic spill killed off half of the photosynthetic plankton in the ocean, what would happen to the atmosphere?
The amount of oxygen in the atmosphere would decrease
The amount of oxygen in the atmosphere would increase
The amount of CO2 in the atmosphere would decrease
There would be no change
How does temperature play a role in rate of photosynthesis?
As light intensity (amount/lumens) decreases in a forest, what will happen to the rate of PHOTOSYNTHESIS?
Slow down with less light
Continue at the same pace
Speed up with the decreasing light
Stop completely
Based on the graph, how would you say CO2 concentration affects the rate (speed) of photosynthesis in plants?
The graph is showing you that plants will have an (a) temperature where the (b) of photosynthesis will be highest. Too (c) or too low of temperatures will (d) down the rate/stop the reaction.
In general, plants have a maximum (a) of the photosynthesis reaction. There is always a peak regardless of if you keep adding CO2, water, or light.
According to the experiment, the Concentration of CO2 is the (a) and the number of oxygen bubbles is the (b) .
Why are bubbles a good indication of the rate of photosynthes? What specifically are these bubbles?
Choose the following conclusions about the experiment/data that are valid. (Multiple select)
As you raise the CO2 concentration, the rate of photosynthesis decreases.
Without any CO2, photosynthesis cannot occur.
As you raise the CO2 concentration, the rate of photosynthesis increases.
Rate of photosynthesis will always increase as give the plant more CO2.
The rate of photosynthesis doesn't increase from 4.0 to 5.0% CO2. A max speed is reached.
How would you desribe the effects of changing light intensity on photosynthesis based on this data? (Use numbers to prove your point)
What happens to the rate of photosynthesis as you increase from 100 W/m2 light intensity to 125 W/m2 light intensity? What does this tell you about lights effect on photosynthesis?
The peak photosynthetic rate occurs at (a) degrees C. At (b) degrees and above, the rate of photosynthesis decreases. The temperature that causes the slowest rate is at (c) degrees.
There is an enzyme called Rubisco that helps convert CO2 into glucose during the light independent (calvin cycle) reaction. How does this data help back up the ideas of enzymes denaturing?
At 30 degrees, the Rubisco enzyme is fully denatured and oxygen production peaks.
Only high temperatures denatur the Rubisco enzyme, as oxygen production goes down above 30 degrees.
Temperatures above and below 30 degrees starts to denature rubisco, lowing Oxygen production/PS rate.
Rubisco is not able to be denatured, it is resistant to any big changes in temperature.
