Photosynthesis In Higher Plants Question 142
Question: Source of $ CO_2 $ for photosynthesis during day in CAM plant is [CPMT 2005]
Options:
A) 3-PGA
B) Malic acid
C) Oxalo-acetic acid
D) Pyruvate
Show Answer
Answer:
Correct Answer: B
Solution:
In CAM plants there is no knanz anatomy, but there occurs dark acidification, i.e., during night malic acid is formed.
This malic acid breaks up into $ CO_2 $ and pyruvic acid in day time and $ CO_2 $ released is utilized in C-3 cycle.
BETA
