Rate of Photosynthesis

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  • Created by: jess._.31
  • Created on: 20-02-23 18:33
What are the three limiting factors of photosynthesis?
The three limiting factors are:
Temperature
Light Intensity
Carbon dioxide concentration
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What does light provide for photosynthesis?
Light provides energy for photosynthesis
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What happens as the light intensity increases?
As light intensity increases the rate of photosynthesis increases until the rate remains constant due to another factor becoming limiting.
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What happens as the temperature increases?
What happens when it gets too high?
As the temperature increases the rate of photosynthesis increases until it reaches the optimal temperature. After this the rate of photosynthesis may begin to decreases as enzymes become denatured.
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What happens as the carbon dioxide concentration increases?
As the carbon dioxide concentration increases the rate of photosynthesis increases until it remains at a constant rate due to another factor becoming limiting.
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What is the equation to calculate light intensity?
Light intensity = 1/distance squared
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What happens when the plant becomes too hot?
When the plant becomes too hot the enzymes begin to become denatured.
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What do farmers use to create the ideal conditions for farming in?
A greenhouse
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What does a heater/ paraffin do when placed in a greenhouse?
A heater increases the carbon dioxide concentration
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What does the artificial light in a greenhouse do?
The artificial light in a greenhouse ensures that the plants are receiving the best light intensity during winter/darker hours.
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What does keeping plants in a greenhouse decreases the chance of happening?
Decreases the chance of the plants catching a disease and helps to keep pests away.
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What does the ventilation system in a greenhouse prevent?
The ventilation system in a greenhouse prevents the plants from becoming too hot and therefore stops enzymes from becoming denatured.
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What is the result of the rate of photosynthesis practical (pond weed)?
The number of bubbles produced decreases as the distance between the pond weed and the lam increases.
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What is the method for the pond weed experiment?
1. Place a piece of pond weed into a beaker
2. Place the lamp at a set distance away from the pond weed, measuring with a ruler
3. Count and record the number of bubbles produced by the pond weed in three minutes
4. Repeat theses steps with the lamp at
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What are some improvements of the pond weed experiment's method?
1. Use a gas syringe to record the volume of gas collected
2. Repeat the experiment at each distance multiple times so you are able too calculate the mean number of bubbles produced
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Other cards in this set

Card 2

Front

What does light provide for photosynthesis?

Back

Light provides energy for photosynthesis

Card 3

Front

What happens as the light intensity increases?

Back

Preview of the front of card 3

Card 4

Front

What happens as the temperature increases?
What happens when it gets too high?

Back

Preview of the front of card 4

Card 5

Front

What happens as the carbon dioxide concentration increases?

Back

Preview of the front of card 5
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