Photosynthesis In Higher Plants Question 117
Question: Tropical plant like sugarcane show high efficiency of $ CO_2 $ fixation because of [BHU 1978, 82; MP PMT 1986, 87, 90]
Options:
A) Calvin cycle
B) Hatch and Slack cycle
C) EMP pathway
D) TCA cycle
Show Answer
Answer:
Correct Answer: B
Solution:
In 1965 kortschak, Hart and Burr working with $ C^{14}O_2 $ on sugarcane leaves found $ C_4 $ dicarboxylic acid, malate and asparlate to be the major labelled products in very short periods of photosynthesis.
This observation was confirmed by M.D.
Hatch and C.R., Slack in 1967.
The Hatch-slack pathway, as this alternative $ CO_2 $ fixation is called, has been found to occur in tropical and sub-tropical grasses and some dicotyledons.
BETA
