What is the role of blue light in terms of stomatal study?

a.) Blue light activates a proton-pumping ATPase in the guard cell plasma membrane and leading to stomatal opening

b.) blue-light stimulation lowers the pH of the apoplastic space surrounding the guard cells, and generates the driving force needed for ion uptake and stomatal opening

c.) The sensitivity of guard cells to blue light increases as a function of their zeaxanthin concentration

d.) npq1 mutant opens at higher fluence rates of blue light, whereas the phot1/phot2 mutant fails to show any blue light–stimulated opening

Which one of the following combination is correct?

TLS Online TPP Program

#Question id: 27530

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the Group 1 with appropriate solution of Group 2

Group 1                                                  Group 2

(1) Agar                                               (P)  Plant cell wall

(2) Raffinose                                       (Q)  Trisaccharides 

(3) Cellulose                                       (R)  Xanthomonas Compestris

(4) Xanthum Gum                             (S) seaweeds 

TLS Online TPP Program

#Question id: 27548

#Unit 1. Molecules and their Interaction Relevant to Biology

Desmosine is formed from

TLS Online TPP Program

#Question id: 27549

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is correct ionization series for Lys & Arg is

TLS Online TPP Program

#Question id: 27550

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is correct ionization series for His

TLS Online TPP Program

#Question id: 27551

#Unit 1. Molecules and their Interaction Relevant to Biology

Glycine at pH 2.34, where there is an equal mixture of +H3N-CH2-COOH and +H3N-CH2-COO-  then the average or net positive charge is 

TLS Online TPP Program

#Question id: 27552

#Unit 1. Molecules and their Interaction Relevant to Biology

Certain side-chain conformations are energetically favorable, these side chain confirmations are called as