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TLS Online TPP Program

#Question id: 10420

 A toggle model has been proposed for phytochrome interconversion, according to this model which option is correct?

#Unit 6. System Physiology – Plant
  1. D-ring of the chromophore in the Pr form exist in the β-hairpin form changes conformation to an α-helix by inducing red-light
  2. the structure of the α helix region of Pr is changed to an β-hairpin during the conversion of Pr to Pfr
  3. C-ring of the chromophore in the Pfr form exist in the β-hairpin form changes conformation to an α-helix by inducing red-light and conversion of pr to pfr takes place
  4. By absorbing red light conversion of Pr to Pfr, β1-region of the chromophore changes conformation to an α-helix
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TLS Online TPP Program

#Question id: 27956

#Unit 1. Molecules and their Interaction Relevant to Biology

Some of the enzyme differ in glycolysis and gluconeogenesis, Which of the following set of enzyme are different
TLS Online TPP Program

#Question id: 27957

#Unit 1. Molecules and their Interaction Relevant to Biology

Bicarbonate + Pyruvate→ Oxaloacetate

a. This reaction catalyzed by pyruvate carboxylase

b. This reaction catalyzed by carbonic anhydrases

c. Uses biotin as cofactor of pyruvate carboxylase

d. Uses biotin as cofactor ofby carbonic anhydrases

Which of the following is true about the given reaction
TLS Online TPP Program

#Question id: 27958

#Unit 1. Molecules and their Interaction Relevant to Biology

The overall equation for Gluconeogenesis is
TLS Online TPP Program

#Question id: 27959

#Unit 1. Molecules and their Interaction Relevant to Biology

Amino acids can undergo net conversion to glucose and are said to be glucogenic and Glucogenic Amino Acids, are Grouped by Site of Entry
a. Alanine, Cysteine, Glycine, Serine, Threonine, Tryptophan, can undergo glucose formation by Pyruvate 
b. Arginine, Glutamate, Glutamine, Histidine, Proline can undergo glucose formation by α-Ketoglutarate
c. Isoleucine*, Methionine, Threonine, Valine can undergo glucose formation by Succinyl-CoA
d. Asparagine, Aspartate can undergo glucose formation by Oxaloacetate

Choose which of the following is correct
TLS Online TPP Program

#Question id: 27960

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following phenomenon is directly related to repair  
TLS Online TPP Program

#Question id: 27961

#Unit 1. Molecules and their Interaction Relevant to Biology

Conversion of Glucose 6-phosphate →  Ribulose 5-phosphate in oxidative phase involves

(a) 2NADP

(b) Removal of 1 CO2

(c) Uses G6PD as enzyme 

(d) No 2NADP is required