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TLS Online TPP Program
#Question id: 14951
#Unit 6. System Physiology – Plant
Expansins belong to a large superfamily of proteins, divided into two major expansin families, α-expansins (EXPAs) and β-expansins (EXPBs), what is the function of these two?
a) EXPAs are more active on eudicot cell walls, whereas EXPBs are more active on grass cell walls
b) EXPAs are more active on grass cell walls, whereas EXPBs are more active on eudicot cell walls
c) EXPAs loosen cellulose–cellulose junctions containing xyloglucan, whereas EXPBs loosen wall complexes containing GAX
d) EXPAs loosen wall complexes containing GAX, whereas EXPBs loosen cellulose–cellulose junctions containing xyloglucan
Which combination is correct from some given above functions of expansins,?
TLS Online TPP Program
#Question id: 14952
#Unit 6. System Physiology – Plant
Some are thin areas where the primary wall is not covered by a secondary wall and are populated with plasmodesmata known as
TLS Online TPP Program
#Question id: 14953
#Unit 6. System Physiology – Plant
Which of the following is a wound-inducible glucan composed primarily of β(1,3)-linkages?
TLS Online TPP Program
#Question id: 14954
#Unit 6. System Physiology – Plant
Which of the following cell wall polysaccharides are also known as matrix polysaccharides?
TLS Online TPP Program
#Question id: 14955
#Unit 6. System Physiology – Plant
Given some plant chemical composition, which one of these are soluble in water?
TLS Online TPP Program
#Question id: 14956
#Unit 6. System Physiology – Plant
Where is the catalytic domain of cellulose synthase located?