Question

The thylakoids are removed and kept in a culture medium containingC{{O}_{2}}
and{{H}_{2}}O
. If the setup is exposed to light, hexose sugars are not formed as the end product. The most appropriate reason for this will be that [AIIMS 1980, 85]
A) Carbon assimilation cannot take place
B) The pigments (P-700 and P-680) are not linked
C) Enzymes are not available
D) The light trapping device is not functional

Answer 1

Amount of nitrogen fixed electrochemically and photochemically is [Kerala 2000]
A) 140mg/{{m}^{2}}/yr
B) 78mg/{{m}^{2}}/yr
C) 35mg/{{m}^{2}}/yr
D) 15mg/{{m}^{2}}/yr