TLS Online TPP Program

#Question id: 10198


The response of photosynthesis to light in a C3 plant some given effect shows in dark as well as in the light, which of the following effect is not true?

#Unit 6. System Physiology – Plant
  1. In darkness there is little photosynthetic carbon assimilation, but because mitochondrial respiration continues, CO2 is given off by the plant
  2. CO2 uptake is negative in the C3 plant
  3. 0-1000 µmol m-2s-1 a range which is increasing the rate of photosynthetic CO2 assimilation this range is known as light limiting
  4. increasing the photosynthesis above the light limited range photosynthesis are eventually limited by the carboxylation capacity of rubisco or the metabolism of triose phosphates