Cell signalling

Question 1

How do cell signal via direct contact?

Answer 1

1. Cells communicate with a neighbouring cell which has gap junction to move molecules through causing a reaction/ response.

Answer 2

1. Cells floating in the bloodstream with surface proteins that bind to one anoher leading to a change and a response

Question 3

How does paracrine work

Answer 3

1. Cells have molecules which are in vesicles and merge with the memebrane to be released
2. The molecules will then go to a cell with the right receptor and a response will take place.

Question 4

How does the endocrine signal work?

Answer 4

1.Molecules go from the cell through the bloodstream into another cell with the right receptor

Question 5

How does autocrine signal work?

Answer 5

1. Molecules released from a cell and that same cell has the receptor the molecules will bind to