TLS Online TPP Program

#Question id: 32369


What is meant by "coincidence detection" in the context of protein activation at the plasma membrane?

#Unit 2. Cellular Organization
  1. Activation of a protein only when two or more signals coincide at the same time and place.
  2. Random activation of proteins anywhere in the cell.
  3. Activation of proteins without any external signaling and in presence of small monomeric GTPase.
  4. Activation of a protein only during cell signalling & cell communication.
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TLS Online TPP Program

#Question id: 99

#Unit 1. Structure and Function of Biomolecules

Which of the following are the main reasons that glycoproteins are so diverse when compared to other proteoglycans are

A) they may contain different sugars in different combinations and chain lengths.

B) β or a-glycosidic linkages may join various carbon atoms in the sugars.

C) they are found in both bacterial, plant and animal cells.

TLS Online TPP Program

#Question id: 100

#Unit 1. Structure and Function of Biomolecules

Which of the following contain NeuNAc residues and sulfated sugars, and their negative charges contribute to the viscosity of mucins.

TLS Online TPP Program

#Question id: 101

#Unit 1. Structure and Function of Biomolecules

You have two bottles, each of which contains a white, crystalline substance. Your lab director tells you that one contains lactose and the other sucrose. Your job is to determine which bottle contains which sugar. Which procedure would you use?

TLS Online TPP Program

#Question id: 102

#Unit 1. Structure and Function of Biomolecules

 The structure of a disaccharide is shown below. Which statement is correct about following structure?

TLS Online TPP Program

#Question id: 103

#Unit 1. Structure and Function of Biomolecules

Lipids may be either hydrophobic or ________.

TLS Online TPP Program

#Question id: 104

#Unit 1. Structure and Function of Biomolecules

Which of the following is the simplest lipids but they may be a part of or a source of many complex lipids.