Cholesterol and phospholipids are transported between organelles by

i. Golgi-dependent mechanisms.

ii. incompletely characterized vesicle populations.

iii. direct contact between membranes and, to some extent, small, soluble lipid-transfer proteins.

Which of the following statements are correct?

TLS Online TPP Program

#Question id: 1563

#Unit 4. Cell Communication and Cell Signaling

A nonfunctional CD4 protein on a helper T cell would result in the helper T cell being unable to ________.

TLS Online TPP Program

#Question id: 1564

#Unit 4. Cell Communication and Cell Signaling

When antibodies bind antigens, the clumping of antigens results from ________.

TLS Online TPP Program

#Question id: 1565

#Unit 4. Cell Communication and Cell Signaling

Which of the following are symptoms of inflammation that might appear in such art?

TLS Online TPP Program

#Question id: 1566

#Unit 4. Cell Communication and Cell Signaling

Histamines trigger dilation of nearby blood vessels, and increase in their permeability. Which of the signs of inflammation are therefore associated with histamine release?

TLS Online TPP Program

#Question id: 1567

#Unit 4. Cell Communication and Cell Signaling

Which of the following cell types are responsible for initiating a secondary immune response?

TLS Online TPP Program

#Question id: 1568

#Unit 4. Cell Communication and Cell Signaling

which one of these is not a characteristics  of B-cell?