Phosphohexose isomerase is one of the enzyme of glycolysis which catalyzes Glucose 6-phosphate to Fructose 6-phosphate, enzyme bind with the hexose in their active site by opening the structure. The ring opening and closing reactions are catalyzed by an active-site present amino acid such as

TLS Online TPP Program

#Question id: 30119

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following disorder is caused due to the high serum level of urate?

TLS Online TPP Program

#Question id: 30120

#Unit 1. Molecules and their Interaction Relevant to Biology

Name the deficiency in which T and B lymphocyte do not develop properly?

TLS Online TPP Program

#Question id: 30696

#Unit 1. Molecules and their Interaction Relevant to Biology

In the pathways for the breakdown of GM1, globoside, and sphingomyelin to ceramide, the ratio of residue  Glc ,Gal, GalNAc, Neu5Ac changes with different compound

Which of the following is incorrectly paired

TLS Online TPP Program

#Question id: 30697

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is true regarding Plasmalogen and Platelet-activating factor

a. The head group of Plasmalogen – ethanolamine

b. The head group of Plasmalogen – choline

c. The head group of Platelet-activating factor – ethanolamine

d. The head group of Platelet-activating factor – choline

TLS Online TPP Program

#Question id: 31014

#Unit 4. Cell Communication and Cell Signaling

If the insulin concentration rises fivefold to 2.5 × 10⁻¹¹ M, as it does after a meal, and the Kd for binding of insulin to its receptor on liver cells, 1.4 × 10⁻¹⁰ M (0.14 nM). What fraction of insulin receptors with bound insulin? 

TLS Online TPP Program

#Question id: 31015

#Unit 4. Cell Communication and Cell Signaling

A ligand binds two different receptors with a Kd value of 10⁻⁷ M for receptor 1 and a Kd value of 10⁻⁹ M for receptor 2. For which receptor does the ligand show the greater affinity?