Preguntas Cap.5 Y 6 Y 7

Question 1

Los PAMS:
A) permiten que los linfocitos B y T reconozcan bacterias y las destruyan.
B) son ricos en cisteína
C) son reconocidos por PRRs del sistema inmune innato.
D) inducen la secreción de interferones.

Answer 1

C)

Question 2

Double stranded RNA-dependant protein kinase mediates the action of:

Answer 2

Type I interferons

Question 3

The alternative complement pathway is iniciated by:

Answer 3

Cell surface constituents that are recognized as foreign to the host.

Question 4

Los anticuerpos (inmunoglobulinas):
A) son sintetizadas y secretadas por células B y T.
B) se unen a diferentes epitopos simultaneamente.
C) etiquetan antigenos para destrucción o eliminación.

Answer 4

C)

Question 5

The classical pathway of the complement begins:

Answer 5

Activation of C1

Question 6

The classical pathway of the complement functions to:

Answer 6

Facilitate destruction of molecules

Question 7

In humans MHC class II are expressed by:

Answer 7

B cells, dendritic cells, macrophages

Question 8

Moléculas involucradas en procesos de migración leucocitaria

Answer 8

Selectinas

Question 9

Which of the following molecules is expressed by a mature T cell that functions as a helper T cell?

Answer 9

CD4

Question 10

T- cell receptors, when coexpressed with CD8 molecules, are restricted to recognizing and binding peptide fragments associated with:

Answer 10

MHC class I molecules

Question 11

B lymphocytes synthesize and express inmunoglobulin:
A) containing multiple epitopes specifities
B) in cytoplasmic phagosomes
C)on their cell membrane surface

Answer 11

C)

Question 12

The primary lymphoid organs are those in which:

Answer 12

Lymphocytes undergo their inicial differentiation

Question 13

Which of the following molecules is expressed on the surface of mature CD4 cells?
A) CD3
B) CD8
C) CD19

Answer 13

A) CD3

Question 14

The white pulp of the spleen is enriched with:

Answer 14

Plasma cells secreting inmunoglobulin