CellSig1 - 10 Flashcards Preview

Y2S2 - Cell Signalling > CellSig1 - 10 > Flashcards

Flashcards in CellSig1 - 10 Deck (10):
1

Define signal transduction

Process by which EC signalling molevules cause changes in target cells

2

7 types of signal

Proteins, small peptides, amino acids, nucleotides, steroids, fatty acid derivatives, dissolved gases

3

Define paracrine signalling

Local signalling

4

Define autocrine signalling

Signalling to itself, or same tissue

5

What kind of molecules can signal by gap junction signalling?

Small molecules such as cAMP and Ca2+

6

What are gap junctions made from?

6 connexins in each membrane (2 connexons of 6 connexins)

7

Describe a gap junction with mixed connexins

Heterotypic

8

Describe a gap junciton with all the same connexins

Homotypic

9

What characterises endocrine signalling?

Slow, low concentrations, high affinity receptors

10

What characterises synaptic signalling?

Fast, high concentrations, low affinity receptors