AP BIOLOGY

PHOTOSYNTHESIS

C 4 PHOTOSYNTHESIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
which is a false statement about C4 light independent reactions?
A
called photorespiration
B
used by corn and sugar cane
C
closes stomata on hot days
D
produces PEP
Explanation: 

Detailed explanation-1: -Solution : Among the given options, option (d) is incorrect about ‘C (4)‘-plants. The mesophyll cells of ‘C (4)‘-plants do not possess RuBisCO enzyme.

Detailed explanation-2: -So the correct answer is ‘Bundle sheath cells contain PEPcase’.

Detailed explanation-3: -So the correct answer is ‘Light phase occurs in mesophyll cells’.

Detailed explanation-4: -In C4 plants, photorespiration does not occur because they have a mechanism that increases the concentration of CO2 at the enzyme site. This takes place when the C4 acid from the mesophyll is broken down in the bundle sheath cells to release CO2. This results in an increase in the intracellular concentration of CO2.

There is 1 question to complete.