Cell cycle is regulated by master regulators (cyclin and CDKs). In vertebrates, G1 CDK activity rises during G1 and is stimulated by the presence of growth factors. When signaling from growth factors is sustained, the resulting cyclin D–CDK4/6 complexes begin phosphorylating Rb, releasing some E2F, which stimulates transcription of the genes encoding cyclin E, CDK2, and E2F itself. In a particular cell type there is a mutation in Rb such that it cannot be phosphorylated. What will be the correct expression pattern of cyclin E in these cells after mitotic stimulation?

TLS Online TPP Program

#Question id: 28070

#Unit 6. System Physiology – Plant

Water splitting/ oxygen evolution is initiated by presence of 

a. P680*

b. P680

c. P680+

TLS Online TPP Program

#Question id: 28071

#Unit 6. System Physiology – Plant

During Water splitting/ oxygen evolution P680+ is directly reduced by

TLS Online TPP Program

#Question id: 28072

#Unit 6. System Physiology – Plant

During photosynthesis water splitting takes place in

TLS Online TPP Program

#Question id: 28073

#Unit 6. System Physiology – Plant

Which of the following is correct regarding ATP & NADPH synthesis and its physiological environment 

(a) ATP & NADPH is synthesized in Stroma

(b) ATP & NADPH is synthesized in Lumen

(c) STROMA is alkaline and similar to Mitochondrial matrix

(d) STROMA is acidic and similar to Mitochondrial matrix

Which of the following is correct

TLS Online TPP Program

#Question id: 28074

#Unit 6. System Physiology – Plant

P680 & P700 exist in various state, and each state have their own different properties 

(a) P680    -   absorbs light  

(b) P680⁺   -     strongest oxidant 

(c) P680 ⁺   -     strongest reductant 

(d) P700   -    absorbs light 

(e) P700* -     strongest reductant 

Which of the following is correct 

TLS Online TPP Program

#Question id: 28075

#Unit 6. System Physiology – Plant

P680 & P700 exist in various state such as reductant, strongest reductant, oxidant and strongest oxidant 

Column 1	Column 2	Properties
A. P680	I. P700	U. reductant
B. P680+	II. P700+	V. strongest reductant
C. P680*	III. P700*	W. oxidant
		X. strongest oxidant

 Match then correctly