Choose correct statements about ‘Protein Disulfide Isomerase’ in protein folding

A. Oxidized PDI catalyzes the rearrangement of a polypeptide’s non-native disulfide bonds via disulfide interchange reactions to yield native disulfide bonds.

B. Reduced PDI catalyzes the initial formation of a polypeptide’s disulfide bonds through the formation of a mixed disulfide.

C. Protein disulfide isomerase contains the conserved active site motif of Cys-Xaa-Xaa-Cys found in thioredoxin and shares a similar role to the Dsb family of proteins found in E. coli.

D. Under more reducing conditions with thiols in the active site the enzyme reshuffles disulfides (isomerase) in target proteins.

TLS Online TPP Program

#Question id: 28088

#Unit 6. System Physiology – Plant

Different subunit of ATP Synthase are derived from different location of gene

a. αβε genes are located in chloroplast

b. αβε genes are located in nucleus 

c. γδ genes are located in chloroplast

d. γδ genes are located in nucleus

Which of the following is incorrect

TLS Online TPP Program

#Question id: 28089

#Unit 6. System Physiology – Plant

The following statement is related to the phenomenon of Cyclic electron transport   

(a) Produces only ATP as a product without net production of NADPH

(b) Produces only NADPH as a product without net production of ATP 

(c) This phenomenon is done by NDH and PGRL dependent mechanism

(d) This phenomenon is done by NDH and PGRL independent mechanism

Which of the following is correct

TLS Online TPP Program

#Question id: 28090

#Unit 6. System Physiology – Plant

The NDH pathway is especially prominent during oxidative stress.  The second pathway involves a ferredoxin‐quinone oxidoreductase that is sensitive to

TLS Online TPP Program

#Question id: 28091

#Unit 6. System Physiology – Plant

Inhibitory agents are given along with their inhibitory system/process 

(a) DCMU -  an inhibitor of PS I 

(b) DCMU -  an inhibitor of PSII 

(c) DBMIB -  an inhibitor of the Cyt b6 f complex

(d) Paraquat -  an inhibitor of PSI

(e) Paraquat -  an inhibitor of PSII

Which of the following is correctly matched

TLS Online TPP Program

#Question id: 28092

#Unit 6. System Physiology – Plant

Component along with their thylakoids percentage in appressed and stroma exposed are given

Match them correctly

TLS Online TPP Program

#Question id: 28093

#Unit 6. System Physiology – Plant

Different component are oriented in different manner     

(a) Photosystem II is located predominantly in the stacked regions of the thylakoid membrane

(b) Photosystem I is located predominantly in the stacked regions of the thylakoid membrane

(c) photosystem II and ATP synthase are found in the unstacked regions protruding into the stroma 

(d) photosystem I and ATP synthase are found in the unstacked regions protruding into the stroma

Which of the following is correct