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TLS Online TPP Program

#Question id: 16957

the immune system can be summarized as follows. Which is not correct for immune system?

#Unit 4. Cell Communication and Cell Signaling
  1. A cell can become more or less susceptible to the actions of a ligand by increasing (up-regulating) or decreasing (down[1]regulating) the expression of the receptor for that li
  2. Ligand binding to the receptor induces a molecular change in the receptor. This change may be in the form of a conformational alteration in the receptor, receptor dimerization or clustering, a change in the receptor’s location in the membrane, or a covalent modification.
  3. a cell must not receive more than one signal through more than one receptor in order to effect a particular outcome.
  4. Integration of all the signals received by a cell occurs at the molecular level inside the recipient cell.
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TLS Online TPP Program

#Question id: 30117

#Unit 1. Molecules and their Interaction Relevant to Biology

Catabolic end product of purines is
TLS Online TPP Program

#Question id: 30118

#Unit 1. Molecules and their Interaction Relevant to Biology

The following enzymes are involved in the catabolism of AMP to uric acid. The correct order of their use is:

1. A deaminase
2. A nucleoside phosphorylase
3. A nucleotidase
4. Xanthine oxidase
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