Lec7FactorsAffectingPhotosynthesis

Respiration exceeds photosynthesis the line is where

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: hibition Net photosynthesis rate ( mol m-2 s-1) Light there is not enough rubisco to carbon fix lights around like 50nm is where respiration exceeds photosynthesis. the line is where the compensation point is and basically photo rate= respiration. The compensation point is the amount of light intensity on the light curve where the rate of photosynthesis exactly matches the rate of respiration. PAR ( mol m-2 s-1) Factors Affecting Photosynthesis Saturation point differs between a C4 plant and C3 plant. basically a C3 plant can have a higher Saturation point. Light • Intensity Wheat and Cotton are C3 plants, whereas MAize is a C4 plant and they have e higher Saturation point bc PEP Carboxylase can have a higher saturation point Text – Saturation point • C3 versus C4 plants – Compensation point • In low light, respiration may exceed photosynthesis – Photoinhibition Factors Affecting Photosynthesis Light • Intensity – Saturation point – Compensation point gross= net+ respiration • In low light, respiration may exceed photosynthesis – Photoinhibition Light http://www.steve.gb.com Factors Affecting Photosynthesis Light • Intensity – Saturation point – Compensation point • In low light, respiration may exceed photosynthesis – Photoinhibition • Very high ligh...
View Full Document

Ask a homework question - tutors are online