measuring photosynthesis

Question 1

three factors affecting photosynthesis

Answer 1

• temperature
• concentration of carbon dioxide
• light

Question 2

ways to measure photosynthesis

Answer 2

• measure the decrease in CO2
• measure the increase in O2
• measure the increase in glucose

Question 3

describe a method of measuring photosynthesis

Answer 3

An inverted measuring cylinder can be used to collect the bubbles of oxygen and measure the volume

Question 4

Light

Answer 4

Is important as it provides the energy needed to break water molecules. As the intensity of the light increases, so does the rate of photosynthesis. After a certain point the rate plateaus as no additional energy can be absorbed.

Question 5

Temperature

Answer 5

Temperature will affect photosynthesis process is heavily mediated by enzymes. As temperature increases, more collisions occur and so the reaction takes place faster. If the temperature gets too high, the enzymes denature.

Question 6

concentration of CO2

Answer 6

As the concentration of CO2 increases, the number of collisions increases and so the rate of photosynthesis increases. The rate plateaus as the enzymes became saturated.