DNA and Cell Receptors

Question 1

P fxn: Structure

Answer 1

provides support for the cell; cell membranes or walls.

Ex: elastin, collagen

Question 2

P fxn: Antibodies (immunity)

Answer 2

Bind to specific foreign particles (viruses & bacteria) to help protect the body
Ex: immunoglobulin G

Question 3

P fxn: Enzyme

Answer 3

carry out almost all of the chemical rxn that takes place in cells. Assists with replication, transcription, translation.
Ex: polymerase, helicase, lactase

Question 4

P Fxn: Messenger/ communication

Answer 4

transmit signals to coordinate biological processes

Ex: oxytocin, growth hormone, insulin

Question 5

P Fxn: transport & storage

Answer 5

Bind and carry atoms and small molecules within cells and throughout the body
Ex: hemoglobin

Question 6

Signalling: contact dependent

Answer 6

next to each other/ touching

Question 7

signalling: protein moves from one cell to another via interstitial fluid

Answer 7

paracrine and neurotransmitter

Question 8

Signal protein moves from one cell to another via the blood stream

Answer 8

hormonal and neurohormonal (cell secretion to the blood)

Question 9

autocrine

Answer 9

cell activates itself

Question 10

3 major types of cell receptors

Answer 10

Ion channel linked
enzyme linked
G protein linked

Question 11

enzyme linked

Answer 11

insulin and growth hormone

Question 12

g protein

Answer 12

opioid recpetor

Question 13

Signal transduction results in

Answer 13

results in: regulation of genes
change in metabolic pathway
change in cytoskeleton

Question 14

intracellular receptor

Answer 14

lipophillic ligand enters cell without receptor