Outline the effects of temperature, light intensity and carbon dioxide concentration on the rate of photosynthesis in plants.

Increases in temperature increase the rate of the photosynthesis reaction by providing energy, this is accurate up to a point where enzymes denature meaning they go through irreversible physical changes and are unable to catalyse the reaction. An increase in light intensity also increases the rate of reaction up to a point where the maximum absorbance of light by chlorophyll is reached. After this the chlorophyll is unable to absorb further light and the rate reaches its maximum. An increase in carbon dioxide concentration will also cause an increase in rate as it is a raw product in the reaction of photosynthesis. The rate ceases to increase once the carbon fixation reaches a maximum.Bonus points:give the chemical equation for photosynthesis6CO2 + 6H2O --> 6O2 + C6H12O6

Answered by Bilge D. Biology tutor

1098 Views

See similar Biology IB tutors
Illustration of a video tutorial

Need help with Biology?

One to one online tuition can be a great way to brush up on your Biology knowledge.

Have a Free Meeting with one of our hand picked tutors from the UK’s top universities

Find a tutor

Related Biology IB answers

All answers ▸

At what stage of Meiosis are the centrioles of paired chromosomes at opposite poles of the cell ?


Discuss the ethical issues of IVF in humans


Explain the structure of the DNA double helix, including its subunits and the way in which they are bonded together


Meselson & Stahl grew E. coli cells in a dense N15 nitrogen medium, then transferred to a lighter N14 nitrogen medium. Describe the observations of their experiment (until the third generation) and use it to explain the mechanism of DNA replication.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2022

Terms & Conditions|Privacy Policy