cells and proteins

Question 1

electrochemical gradient

Answer 1

a gradient of electrochemical potential usually for an ion that can move across a membrane consisting of the difference in solute concentration and the difference in charge across a membrane

Question 2

facilitated diffusion

Answer 2

the passive transport of substances across the membrane through specific transmembrane proteins

Question 3

fluid mosaic model

Answer 3

the structure of plasma membrane

Question 4

gated channels

Answer 4

channel forming proteins controlled by signalling molecules or ion concentration

Question 5

glucose support

Answer 5

an integral protein involved in forming in the transport of glucose and sodium ions across the cell membrane at the same time and same direction

Question 6

integrsl membrane proteins

Answer 6

in the phosopholipid bilayer

Question 7

ligand gated channels

Answer 7

transmembrane protein channels controlled by the binding of signal molecules

Question 8

membrane potential

Answer 8

an electrical gradient that forces ions to move passively in one directions
positive ions attracted to negative side and visa versa

Question 9

peripheral membrane proteins

Answer 9

sits ontop of the phospholipids

Question 10

sodium-potassium ATPase

Answer 10

the enzyme that acts as the sodium potassium pump removing three sodium ions from the cell and taking two potassium cells into the cell

Question 11

transmembrane proteins

Answer 11

proteins that span a membrane and act as channels or transporters of ions

Question 12

transporter protiens

Answer 12

a membrane protein involed in the movement of ions small molecules across the membrane

Question 13

voltage gated channels

Answer 13

a class of transmembrane proteins that form ion channels activiated by changes in the electrical membrane potential near the channel