Photosynthesis In Higher Plants Question 57
Question: Blackman demonstrated that increasing illumination increased the photosynthetic rate upto a point when $ CO_2 $ becomes limiting. If light was not limiting, temperature becomes limiting. Emerson found that maximum $ C {{O} _ {2}} $ fixation could be achieved with brief flashes of light. Mark the correct statement in the following [CPMT 1988, 89]
Options:
A) Only one factor can be limited in photosynthesis
B) Photosynthesis consists of a light and dark reaction
C) The trapping of light by chloroplast is temperature dependent
D) The trapping of light by chloroplast can occur only if $ C {{O} _ {2}} $ is present
Show Answer
Answer:
Correct Answer: B
Solution:
Blackman proposed the ’law of limiting factor and also proved that photosynthesis is photochemical reaction (light reaction) and biochemical reaction (dark reaction).
BETA
