#Question id: 10380
#Unit 6. System Physiology – Plant
Two separate processes, the first involves a signaling pathway that facilitates the infection process itself and the second involves the activation of a set of genes that regulate the formation of root nodules. Which of the following receptor is thought to participate in both processes?
#Question id: 10381
#Unit 6. System Physiology – Plant
symbiosis receptor-like kinase (SYMRK) is another type of receptor involves several function. Which of the following is incorrect?
#Question id: 10382
#Unit 6. System Physiology – Plant
Ureides are
#Question id: 10383
#Unit 6. System Physiology – Plant
The nitrogenase enzyme complex fixes N2 produces ammonia, The nitrogenase
enzyme complex catalyzes this reaction by following characteristics given
below;
a) It can be separated into two components—the Fe protein and the MoFe
protein— neither of which has catalytic activity by itself
b) Fe protein is the smaller of the two components and has two identical
subunits, each contains an iron–sulfur cluster, which participates in the redox
reactions
c) The Fe protein is irreversibly inactivated by O2 while MoFe protein is
activated by O2
d) MoFe protein has four subunits, each subunit has two Mo–Fe–S clusters
e) Ferredoxin serves as an electron donor to the Fe protein, and Fe
protein reduces the MoFe protein without any hydrolysing ATP
f) Only prokaryotes have nitrogenase enzyme
Which of the following characteristics of nitrogenase enzyme complex is incorrect?
#Question id: 10384
#Unit 6. System Physiology – Plant
Nitrogenase enzyme complex catalyzes the molecular nitrogen fixation, this enzyme not only fixes nitrogen but also perform other reactions given below. Which one is not performed by nitrogenase?
#Question id: 10385
#Unit 6. System Physiology – Plant
The leaves of many species are able to bend toward the sun during its progress across the sky, a phenomenon known as