#Question id: 10346
#Botany
Nitrite reductase will convert nitrite to ammonium. There are two types of nitrite reductase characteristics given below;
a) Both nitrite reductase consist of a single 63kD polypeptide
b) In leaf chloroplasts and root plastids contain different forms of the nitrite reductase enzyme
c) In shoot nitrite reductase directly dependent on the light reaction by the ferredoxin, it activates nitrite reductase in choloroplast
d) NADPH in the roots is provided by pentose phosphate pathway, it also activate nitrite reductase in the plastids
Which of the correct statement about nitrite reductase characteristics?
#Question id: 10358
#Botany
Which of the following essential micronutrients is associated with nitrate reductase enzyme found in higher plants?
#Question id: 10360
#Botany
How much ATP require in the nitrogen fixation or conversion of ammonium assimilation in the system?
#Question id: 10362
#Botany
Bacteria can convert atmospheric nitrogen into ammonia,
Several form symbiotic associations with higher plants is given below;
HOST PLANT
N-FIXING SYMBIONTS
A)
Gunnera
i) Frankia
B) Azolla
ii)
Acetobacter
C)
Leguminous
iii) Azospirillum
D) Actinorhizal
iv) Nostoc
E) Sugarcane
v) Anabaena
F) Miscanthus vi) Sinorhizobium
Which of the following combination with the host plants and
n-fixing symbionts is CORRECT?
#Question id: 10363
#Botany
Free living nitrogen fixing takes place as shown in the following;
TYPE
N-FIXING GENERA
A)
Cyanobacteria (blue-green algae) i)
Bacillus
B)
Aerobic
ii)
Clostridium
C)
Facultative
iii) Anabaena
D)
Anaerobic nonphotosynthetic iv)
Rhodospirillum
E)
Anaerobic photosynthetic
v) Azospirillum
#Question id: 10364
#Botany
Which of the following is the most common type of symbiosis occurs between members of the plant family and soil bacteria?