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TLS Online TPP Program

#Question id: 1325

What is the main purpose of gap junctions?

#Unit 4. Cell Communication and Cell Signaling

  1. Prevents cells from separating from one another.

  2. Allows large molecules to move between cells.

  3. Prevents water from moving between cells.

  4. Allows small molecules and ions to travel between cells.

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TLS Online TPP Program

#Question id: 1481

#Unit 4. Cell Communication and Cell Signaling

XIAP, one member of a family of inhibitor of apoptosis proteins (IAPs), provides another way to restrain both initiator and effector caspases. XIAP has three N-terminal BIR domains; the one termed BIR2 binds to and inhibits:
TLS Online TPP Program

#Question id: 1482

#Unit 4. Cell Communication and Cell Signaling

XIAP-mediated inhibition relieved by:
TLS Online TPP Program

#Question id: 1483

#Unit 4. Cell Communication and Cell Signaling

The apoptosome serves as an activation machine for the:
TLS Online TPP Program

#Question id: 1484

#Unit 4. Cell Communication and Cell Signaling

DNA damage or ultraviolet irradiation leads to induction of synthesis of the BH3-only, termed as:
TLS Online TPP Program

#Question id: 1485

#Unit 4. Cell Communication and Cell Signaling

The presence of specific trophic factors (e.g., NGF) leads to activation of their cognate receptor tyrosine kinases (e.g., TrkA) and activation of :
TLS Online TPP Program

#Question id: 1486

#Unit 4. Cell Communication and Cell Signaling

Removal of a cell from its substratum disrupts integrin signaling, leading to release of the BH3-only protein from the cytoskeleton, known as: