Ions, vitamins and minerals

Question 1

Missed a slide

Question 2

Missed another slide

Question 3

What is diffusion?

What affects the rate of diffusion?

Question 4

What is meant by the terms hpotonic, isotonic and hypertonic solution?

Question 5

What are the 2 types of transports for solutes to cross from the lumen, across the epithelium, into the bllood?

Question 6

What are the 3 ways solutes can cross membranes?

What are the two types of transport proteins involved in facilitated diffusion?

Which allow faster transport - channel or carrier proteins?

Question 7

What is difference between a carrier and channel protein?

Answer 7

Carrier protein

Channel protein = aqueous pore that opens up

Question 8

What are ion channels?

Answer 8

Aqueous channels

Question 9

What are the different stimuli that can open channels?

Answer 9

Voltage gated - arrival of an action potential

ligand gated - in response to a molecule?

Question 10

What are the 3 types of carrier mediated transport?

Answer 10

Uniport

Symport

Antiport

Question 11

What are the 2 types of active transport? What are some examples of each?

Question 12

missed a bunh

Question 13

Summarise the diagram below:

Question 14

idek what i missed

Question 15

missed a bunch

Question 16

Absorption of carbohydrates??

Question 17

How are water and electrolytes reabsorbed in the GI tract?

Approximately how many L of water is absorbed a day in the small and large bowels?

Answer 17

Absorption of H2O powered by the absorption of ions

Question 18

How is the osmosis gradient for the absorption of water formed?

Answer 18

Na+ transported from lumen into electrolyte

Makes something hypotonic

Question 19

useless slides?

Question 20

More waffle on osmosis gradient

Question 21

like another 20 more slides