Given below are few statements regarding the cytokinin signalling pathway;

a) Cytokinin inhibits the activation of a Cdc25- like phosphatase, whose role is to remove an inhibitory phosphate group from the Cdc2 kinase

b) Cytokinin oxidase irreversibly inactivates cytokinins, and it could be important in regulating or limiting cytokinin effects

c) Cytokinin signal transduction pathway is completed on multiple places such as ER, Cytosol and Nucleus

d) Elevation of endogenous cytokinin levels in transgenic Arabidopsis results in overexpression of the KNOTTED homeobox transcription factor homologs KNAT1 and STM—genes 

Which of the following combinations  from the given above statements is correct?

TLS Online TPP Program

#Question id: 27972

#Unit 1. Molecules and their Interaction Relevant to Biology

This is the order of electron transfer in complex-I NADH - FMN - Fe-S – Q to Prevent electron transfer from Fe-S center to ubiquinone 

a. Myxothiazol

b. Rotenone

c. Amytal

d. Piericidin A

Which of the following can be used

TLS Online TPP Program

#Question id: 27973

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is responsible to Blocks electron transfer with in complex III from cytochrome b to cytochrome c

TLS Online TPP Program

#Question id: 27974

#Unit 1. Molecules and their Interaction Relevant to Biology

During the reduction of C in Q cycle four proton transported from matrix to IMS in which

TLS Online TPP Program

#Question id: 27975

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following set of condition During Q cycle, will favours the formation of ROS generation

(a) mitochondria are not making ATP and therefore have a large proton-motive force and a high ratio of QH2/Q

(b) mitochondria are making ATP and therefore have a large proton-motive force and a high ratio of Q/QH2 

(c) there is a high NAD/NADH ratio in the matrix

(d) there is a high NADH/NAD ratio in the matrix

TLS Online TPP Program

#Question id: 27976

#Unit 1. Molecules and their Interaction Relevant to Biology

Ubiquinone (Q) is the point of entry from 4 major entry points

a. NADH

b. Succinate (MM)

c. Glycerol 3-phosphate dehydrogenase (Cytosol)

d. Acyl-CoA dehydrogenase

TLS Online TPP Program

#Question id: 27977

#Unit 1. Molecules and their Interaction Relevant to Biology

Respiratory complexes tightly associate with each other in the inner membrane to form respirasomes 

a. I, II, III by Cytcox

b. III-IV by UQH2 ⇌ UQ 

c. I, II, III by UQH2 ⇌ UQ 

d. III-IV by Cytc_ox