Factors affecting photosynthesis Flashcards
What increases as light intensity increases?
ATP and NADPH are produced at higher rate
maximises production
What increases as the rate of carbon dioxide concentration ?
rate of carbon fixation in the calvin cycle
What happens when the rate of carbon fixation increases ?
increased TP production
What is a limiting factor ?
factor of photosynthesis that is short supply
reduces rate of photosynthesis
State the three factors that affect the rate of photosynthesis
light intensity
temperature
carbon dioxide concentration
What happens when temperature starts to increase?
rate of enzyme controlled reaction increases
What is an enzyme controlled reaction in photosynthesis ?
carbon fixation
What happens when stomata closes ?
stops diffusion of carbon dioxide
What happens to rate of light independent reactions as carbon dioxide concentration lowers ?
decreases
eventually stops photosynthesis
Why is water not a limiting factor ?
plant would have closed its stomata
and photosynthesis would have stopped
What happens when temperature is too low ?
RuBisCo wont be able to function
stopping photosynthesis
