Nearpod Rate of Photosynthesis

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?

Which of these conditions would decrease the rate of photosynthesis in a plant?

• Above average precipitation
• Changing the daylight hours from 14 hrs to 10 hrs
• Changing the CO₂ concentration from 380 ppm to 410 ppm
• All of these choices

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.

• optimal
• rate
• high
• slow
• low
• worst
• least

In general, plants have a maximum ________ of the photosynthesis reaction. There is always a peak regardless of if you keep adding CO2, water, or light.