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: 10524

#Unit 6. System Physiology – Plant

Members of the Poaceae family, which includes all of the cereal crops, use benzoxazinoids, these alkaloids shows;

a) Alkaloids are derived from the tryptophan as constitutively produced defensive secondary metabolites

b) These benzoxazinoids such as DIBOA and its derivative DIMBOA are usually stored in the peroxisome

c) Upon damage, the inactive glycosides are hydrolyzed, generating glucosinolate, which are toxic not only to insect herbivores but also against pathogens

d) DIBOA and DIMBOA perform insecticidal and pesticidal activities

e) It can be inactivated by hydroxylation and N-glycosylation reactions

Which of the following combination is correct about benzoxazinoids alkaloids?

#Question id: 10525

#Unit 6. System Physiology – Plant

The major cyanogenic glycoside in_____i______ is _____ii______.

a) i-sorghum, ii-Amygdalin

b) i-sorghum, ii-dhurrin

c) i-Cassava, ii-lotaustralin

d) i-Cassava, ii-linamarin

Which one is incorrect combination of cyanogenic glycoside?

#Question id: 10526

#Unit 6. System Physiology – Plant

What is elicitors? Which one is not belongs to the elicitor responses

#Question id: 10527

#Unit 6. System Physiology – Plant

Based on their feeding behaviors, three major types of insect herbivores can be distinguished, which evades the constitutive defense;

Correctly match the feeding behaviour with its insects;

#Question id: 10528

#Unit 6. System Physiology – Plant

The insect ingests plant tissue containing the fatty acids, an enzyme in the gut conjugates the plant-derived fatty acid to an insect-derived amino acid typically;

#Question id: 10529

#Unit 6. System Physiology – Plant

Insects produces an elicitors molecules that is caeliferins at the wound site in Arabidopsis plant, which induces