Biology 4.1.2 Flashcards
What are the 3 requirements plants need to Photosynthesise?
-Light
-Water
-Carbon Dioxide
The Rate of Photosynthesis is affected by the…
Availability of the Requirments.
What is the ‘Limiting Factor’?
The P.sis requirement that runs out first, reducing the R.O.P.
Why is Water not considered a Limiting Factor?
The amount needed is relatively small compared to the amount of Water transpired from a Plant so there is hardly ever a situation where there’s not enough water for P.sis.
The Temperature of the Environment affects how much ___ Energy all Particles have.
Kinetic.
Temperature affects the speed at which Carbon Dioxide and Water move through a…
Plant.
The lower the Temp., the less ___ Energy Particles have, resulting in fewer…
Kinetic, Successful Collisions.
Increasing Temp. increases the likelihood of successful…
Collisions.
At higher Temperatures, Enzymes that control P.sis can become…
Denatured.
Plants get the Energy they use in P.sis from…
Light.
The more Light a Plant receives, the ___ the ROP.
Faster.
The more CO2 that is present to a plant, the ___ the ROP.
Faster.
What do the Chloroplasts do?
Absorb Light Energy for P.sis.
The more Chloroplasts a plant has, the ___ the ROP.
Faster.
The amount of Chlorophyll a Plant has can be affected by: (3)
-Diseases (eg TMV).
-Lack of Nutrients (eg Magnesium) (Deficiency).
-Loss of Leaves.
