TLS Online TPP Program

#Question id: 1574


A bacterium entering the body through a small cut in the skin will do which of the following?

#Unit 4. Cell Communication and Cell Signaling
  1. inactivate the erythrocytes

  2. stimulate apoptosis of nearby body cells

  3. activate a group of proteins called complement

  4. stimulate natural killer cell activity

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TLS Online TPP Program

#Question id: 24284

#Unit 4. Cell Communication and Cell Signaling

All are the types of anchoring junctions that are present in animal cells, EXCEPT

TLS Online TPP Program

#Question id: 24285

#Unit 4. Cell Communication and Cell Signaling

Adherens junctions: 

TLS Online TPP Program

#Question id: 24286

#Unit 4. Cell Communication and Cell Signaling

Identify the correct matching by taking one item from each column

Column-I;

 Anchoring junctions

Column-II;

 Adhesion type

 Column-III;

 Cytoskeletal attachment 

 a. Desmosomes 1. Cell-cell P. Intermediate filaments
 b. Adherens junctions 2. Cell-matrix Q. Actin filaments
 c. Hemidesmosomes
 d. Focal adhesions

TLS Online TPP Program

#Question id: 24287

#Unit 4. Cell Communication and Cell Signaling

What are the key components of desmosomes?
a. Claudin
b. Desmocollin
c. Occludin
d. Desmoglein
Choose the correct combinations.

TLS Online TPP Program

#Question id: 24288

#Unit 4. Cell Communication and Cell Signaling

Select the CORRECT combination by matching the junctions with their functions.

 Anchoring junctions Functions
 1. Desmosomes a. Strength, durability, signalling
 2. Adherents junctions b. Shape, tension, signalling, force transmission
 3. Hemidesmosomes c. Shape, rigidity, signalling
 4. Focal adhesions d. Shape, signalling, force transmission, cell movement 

TLS Online TPP Program

#Question id: 24325

#Unit 4. Cell Communication and Cell Signaling

The principal ECM adhesion receptor in epithelial hemidesmosomes is;