In theory, auxin could increase the rate of proton extrusion by two possible mechanisms:

I) H+-ATPase activation

II) H+-ATPase synthesis

a) Auxin involves in the activation of ATP-driven proton-pump (H+-ATPase) indirectly

b) ABPs appear to be able to activate the plasma membrane H+-ATPase in the presence of auxin

c) Activity of the H+- ATPase is repressed by the C-terminal domain of the enzyme, which can block the catalytic site  in absence of auxin

d) The protein is synthesized on the rough endoplasmic reticulum and targeted via the secretory pathway to the plasma membrane

Find out the correct explanation of given mechanisms.

TLS Online TPP Program

#Question id: 15775

#Unit 5. Developmental Biology

When a multipotent stem cell divides asymmetrically, its maturing daughter cell often goes through a transition stage, called as

A. Progenitor cell .

B. Transit-amplifying cell.

C. Adult stem cell

D. Totipotent precursor cell

TLS Online TPP Program

#Question id: 719

#Unit 1. Molecules and their Interaction Relevant to Biology

Suppose that a 40-residue segment of a protein folds into a two-stranded antiparallel β structure with a 4-residue hairpin turn. What is the longest dimension of this motif?

TLS Online TPP Program

#Question id: 712

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following amino acids will have high propensity to form  α helix?

TLS Online TPP Program

#Question id: 10504

#Unit 6. System Physiology – Plant

Under which conditions, the Pseudomonas aeruginosa synthesize and release of siderophores

TLS Online TPP Program

#Question id: 1554

#Unit 4. Cell Communication and Cell Signaling

Which domain of MHC-1 is interact with CD8 cell surface molecule found on TC cells.