Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Does photorespiration help avoid photorespiration?

  1. Oct 19, 2013 #1
    In C3 plants, RuBisCO acts as an oxygenase when CO2 concentration is below a certain value. As a result, a process called photorespiration takes place.
    Photorespiration leads to the formation of toxic ammonia and CO2. Moreover, it uses up ATP and don't form glucose. So its considered a wasteful process.

    I was wondering if the formation of CO2 helps to increase its concentration and thereby result in RuBisCO acting as a carboxylase (which is what we want). So in a way, can we say that photorespiration stops itself from proceeding?
  2. jcsd
  3. Oct 20, 2013 #2
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook