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TLS Online TPP Program

#Question id: 10219

The PSII reaction center leads to easily  inactivation and damage by photoinhibition process while Photosystem I Is Protected from Active Oxygen Species, Why PSI protect from active oxygen species in compare to PSII

#Unit 6. System Physiology – Plant

  1. Because PSI contain ferredoxin acceptor that is a very strong reductant that can easily reduce molecular oxygen to form superoxide (O2 –)

  2. Because PSI contain LHCI Complex that protects the reaction centre from damaging by photoinhibition
  3. Because PSI donot have D1 protein that can easily damage or inactivate by photoinhibition
  4. Because PSI perform a process Nonphotochemical quenching is thought to be involved in protecting the photosynthetic machinery against overexcitation and subsequent damage
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TLS Online TPP Program

#Question id: 28043

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statement holds true for the hydrogen and hydrophobic interaction in protein folding 
(1) The Hydrophobic Effect Has the minimal Influence on Protein Stability
(2) The Hydrophobic Effect Has the Greatest Influence on Protein Stability
(3) Hydrogen bonds, which are central features of protein structures, make only minor contributions to protein stability
(4) Hydrogen bonds, which are central features of protein structures, makes major contributions to protein stability
TLS Online TPP Program

#Question id: 28044

#Unit 1. Molecules and their Interaction Relevant to Biology

Which one of the following is INCORRECT about protein structures?
TLS Online TPP Program

#Question id: 28045

#Unit 1. Molecules and their Interaction Relevant to Biology

Native proteins are 
TLS Online TPP Program

#Question id: 28046

#Unit 1. Molecules and their Interaction Relevant to Biology

Protein stability depend on interactions which one of the following is correctly representing the increasing order of contribution
TLS Online TPP Program

#Question id: 28047

#Unit 1. Molecules and their Interaction Relevant to Biology

Protein A will fold into its native state only when protein B is also present in the solution. However, protein B can fold itself into native confirmation without the presence of protein A. Which of the following is true? 
TLS Online TPP Program

#Question id: 28048

#Unit 1. Molecules and their Interaction Relevant to Biology

As folding progresses which of the following does not take place?