Lecture 6

Question 1

What is the composition of body fluids

Answer 1

water, large molecules, electrolytes

Question 2

what are the types of regulation of blood plasma

Answer 2

osmotic regulation, ionic regulation, volume regulation

Question 3

What is diffusion

Answer 3

movement of particles/substance from an area that is higher to lower

Question 4

what is osmosis

Answer 4

movement of water through semipermeable membrane from lower solute to higher solute

Question 5

What are the colligative properties of aqueous solutions

Answer 5

osmotic pressure, freezing point, water vapor pressure

Question 6

what is osmotic pressure

Answer 6

tendency of watee to move from one solution to another by osmosis

Question 7

The higher the solute concentration, the ________ the osmotic oressure of that solution

Answer 7

higher

Question 8

what is hydrostatic pressure

Answer 8

osmosis can be prevented by this opposing force

Question 9

osmosis is always from _______ osmotic pressure to ____ osmotic pressure

Answer 9

lower, higher

Question 10

osmolarity:

Answer 10

the moles of osmotically active particles per litre of solvent

Question 11

osmoregulation:

Answer 11

maintenance if nearly constant osmotic pressure in body fluids regardless of external OP

Question 12

isomotic:

Answer 12

2 solutions with same OP

Question 13

Hyposmotic

Answer 13

1 solution has lower OP than other

Question 14

Hyperosmotic

Answer 14

1 solution is greater OP than other

Question 15

Euryhaline:

Answer 15

able to live over a wide range of salinities

Question 16

Stenohaline

Answer 16

tolerates a narrow range of salinities

Question 17

osmoregulators:

Answer 17

maintains a relatively constant OP

Question 18

osmoconformers:

Answer 18

blood OP varies woth eviron OP