B1.4.4 Interaction Of Limiting Factors Flashcards
Limiting factors of phptosynthesis
Carbon dioxide
Temperature
Light intensity
Simply put how to measure rate of photosynthesis
Measuring how much oxygen or glucose a plant makes in a given time.
An alternative to measuring rate of photosynthesis
Glucose is used to produce new cells, so you can also calculate the increase in biomass in a given time
How does light intensity affect rate of photosynthesis
The higher the light intensity, the faster the rate of photosynthesis.
This continues until photosynthesis reaches its maximum rate
How does carbon dioxide affect the rate of photosynthesis
The greater the co2 concentration, the faster the rate of the reaction
Most commonly the limiting factor since the atmosphere only contains about 0.04% of it
How does temp affect the rate of photosynthesis
The higher the temp, the faster the reactions occur.
However, if temp too high, the enzymes will denatures so reactions will stop
What is the inverse square law
When you double the distance of the light source, the light intensity decreases by a factor of 4
Formula for rate of photosynthesis
R=1/t
Formula for light intensity
1/d^2
Investigating fate of photosynthesis
Elodea.
The volume of gas.given off per minute
Counting bubbles produced per min
