TLS Online TPP Program

#Question id: 29552


There are statement are given regarding the Plant pathogens groups   
a. derive energy from living cells, found on living plant have complex nutrition and do not kill host plants rapidly
b. derive energy from killed cells; they invade and kill plant tissue rapidly and then live saprotrophically on the dead remains
c. initially invading cells that are maintained alive prior to a transition to a necrotrophic life style in which nutrients are obtained from killing host cells

Choose which of the following is correctly defining the groups

#Unit 6. System Physiology – Plant
  1. a is, Necrotrophs b is Hemibiotrophs, while c is Biotrophs
  2.  a is, Necrotrophs b is Biotrophs, while c is Hemibiotrophs
  3. a is Hemibiotrophs, b is Necrotrophs, while c is Biotrophs
  4. a is Biotrophs, b is Hemibiotrophs, while c is Necrotrophs
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TLS Online TPP Program

#Question id: 858

#Unit 1. Molecules and their Interaction Relevant to Biology

Unfolded protein response (UPR)

TLS Online TPP Program

#Question id: 859

#Unit 1. Molecules and their Interaction Relevant to Biology

Which one statement is incorrect about ATG genes;

TLS Online TPP Program

#Question id: 860

#Unit 1. Molecules and their Interaction Relevant to Biology

Select true ‘T’ AND false ‘F’ about ubiquitinylation

I. These ubiquitin-like modifiers control processes as diverse as nuclear import,

II. Regulated by the ubiquitin-like modifier Sumo, and autophagy,

III. Regulated by the ubiquitin-like modifier Atg8.

IV. For a protein to be efficiently degraded, it must be linked to a chain of at least four tandemly linked ubiquitin molecules in which Lys 34 of each ubiquitin forms an isopeptide bond with the C-terminal carboxyl group of the following ubiquitin.

TLS Online TPP Program

#Question id: 861

#Unit 1. Molecules and their Interaction Relevant to Biology

Alexander Varshavsky discovered, the half-lives of many cytoplasmic proteins vary with the identities of their N-terminal residues via the so-called N-end rule:-

A. Destabilizing N-terminal residues Asp, Arg, Leu, Lys, and Phe have half-lives of

i. Only 2 to 3 minutes,

B. Stabilizing N-terminal residues Ala, Gly, Met, Ser, Thr, and Val have half-lives of

ii. >10 hours in prokaryotes

iii. >20 hours in eukaryotes.

TLS Online TPP Program

#Question id: 862

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the following

lysosomal protein degradation pathways

         Found in

1. Nonselective

a-well-nourished cells

i-containing the pentapeptide Lys-Phe-Glu-Arg-Gln

2- Selective

b-starving cells

TLS Online TPP Program

#Question id: 863

#Unit 1. Molecules and their Interaction Relevant to Biology

Ubiquitinated proteins are proteolytically degraded in an ATP-dependent process mediated by a large (∼2500 kD, 26S) multiprotein complex named the 26S proteasome;