A&P 3 lab slides

Question 1

Diffusion

Answer 1

the movement of particles from an area of higher concentration to an area of lower concentration

Question 2

Osmosis

Answer 2

the diffusion of water through a semipermeable membrane when the solute can’t cross the membrane. Water moves from area of higher water concentration (lower solute concentration) to area of lower water concentration (higher solute concentration)

Question 3

Filtration

Answer 3

is a process in which solid particles in a suspension are separated from the liquid by a filtration membrane

Question 4

Dialysis membrane

Answer 4

membrane with tiny pores so that only small molecules can cross the tubing

Question 5

Osmometer

Answer 5

a device used to measure osmosis

Question 6

Solution vs Suspension

Answer 6

A solution contains a dissolved molecule while a suspension has solute molecules that don’t dissolve and are suspended in the solvent

Question 7

Solute

Answer 7

substance being dissolved

Question 8

Solvent

Answer 8

Dissolves substances

Question 9

Saline (0.9% NaCl)
Is this isotonic, hypotonic or hypertonic?

Answer 9

Isotonic

Question 10

Isotonic

Answer 10

Two solutions that have the same concentration of solutes are said to be isotonic (equal tension)

Question 11

Hypertonic

Answer 11

A solution that has a higher concentration of solutes than another solution

Question 12

Hypotonic

Answer 12

a solution that has a lower concentration of solutes than another solution

Question 13

Extracellular fluid (ECF)

Answer 13

is the fluid environment outside the enclosure of the cell membrane

Question 14

Intracellular fluid (ICF)

Answer 14

is the fluid interior of the cell

Question 15

Plasma

Answer 15

is the fluid that surrounds blood cells

Question 16

Interstitial fluid

Answer 16

is the fluid that surrounds cells in the body tissues

Question 17

Crenation

Answer 17

If cells are surrounded by a hypertonic environment, water
leaves the cells and they shrivel

Question 18

Lysis (hemolysis)

Answer 18

is the breakdown of red blood cells (RBCs)

Question 19

Lugol’s Iodine

Answer 19

indicates the presence of starch

Question 20

Silver Nitrate

Answer 20

indicates the presence of chloride