Chapter 11: Cell Communication

Question 1

Flight response is triggered by a signaling molecule called _____________ released into the blood stream

Answer 1

Epinephrine

Question 2

Animal cells may communicate via direct contact between membrane bound cell surfaces in a process called

Answer 2

Cell-cell recognition

Question 3

Three main types of membrane receptors

Answer 3

G protein coupled receptors
Receptor tyrosine kinases
Ion channel receptors

Question 4

Cell surface transmembrane receptors that work with the help of G proteins

Answer 4

G protein coupled receptors

Question 5

What do G proteins bind

Answer 5

Energy rich GTP

Question 6

Membrane receptors that attach phosphates to tyrosines

Answer 6

Receptor tyrosine kinases (RTKs)

Question 7

An enzyme that catalyze a the transfer of a phosphate group from an ATP to another protein

Answer 7

Kinase

Question 8

A ____________________ receptor acts as a gate when the receptor changes shape

Answer 8

Ligand gated ion channel