Exam 1

Question 1

eyepiece

Answer 1

magnifying element, what you look through

Question 2

objectives

Answer 2

magnification (4x, 10x, 40x)

Question 3

working distance

Answer 3

distance between the slide and the objective

Question 4

depth of field

Answer 4

can see everything, and the depth of stacked strings. 4x is the best

Question 5

parfocal

Answer 5

allows you to move to high objective and still be focused

Question 6

condenser

Answer 6

concentrates light

Question 7

iris diaphragm

Answer 7

controls the amount of light that passes through

Question 8

diffusion

Answer 8

movement of molecules from areas of high concentration to low concentration until reach equilibrium

Question 9

osmosis

Answer 9

water molecules diffuse down the concentration gradient through a semi-permeable membrane

Question 10

brownian movement

Answer 10

all molecules are in constant motion and collide with other molecules and absorb heat

Question 11

semipermeable membrane

Answer 11

allows some material to pass through, but rejects others

Question 12

osmotic pressure

Answer 12

concentration of dissolved particles < osmotic pressure, > rate of dif.

Question 13

solute

Answer 13

substance that can be dissolved

Question 14

solvent

Answer 14

a liquid in which substances are dissolved, forming a solution

Question 15

homogeneous mixture

Answer 15

composition is uniform throughout mixture

Question 16

plasmolysis

Answer 16

membrane pulls away from the cell wall

Question 17

tonicity

Answer 17

water will always move to high concentration of solutes; less water

Question 18

hypertonic

Answer 18

not enough water in the cell, cell shrivels
ex: RBC in salt water like ocean

Question 19

hyptonic

Answer 19

too much water in cell, cell bursts

Question 20

isotonic

Answer 20

cell remains same, same water in and out of cell

Question 21

factors that speed up dif.

Answer 21

small diameter, high temp.,

Question 22

epithelial tissue

Answer 22

based on shape of cells, and if layered or not

Question 23

transitional epithelial

Answer 23

enables stretchiness, in urinary bladder

Question 24

connective tissues

Answer 24

cells, fibers, and ground substance/ matrix

Question 25

elastic fibers

Answer 25

stretchy

Question 26

collagen fibers

Answer 26

strong support

Question 27

hyaline cartilage

Answer 27

some flexibility, barely see fibers, chondrocytes, see rainbow if move focus fast

Question 28

fibrocartilage

Answer 28

collagen fibers, absorbent

Question 29

elastic cartilage

Answer 29

firm elastic support, elastic fibers

Question 30

muscle tissue

Answer 30

skeletal, smooth, cardiac

Question 31

skeletal tissue

Answer 31

striation, nuclei on side

Question 32

cardiac tissue

Answer 32

striated, single nucleus, branched, interlatered disc

Question 33

smooth muscle

Answer 33

single nucleus, no striation

Question 34

nervous tissue

Answer 34

neuron

Question 35

neuron

Answer 35

dendrite, axon, nucleus

Question 36

squamous

Answer 36

flat

Question 37

cuboidal

Answer 37

ice cubes

Question 38

columnar

Answer 38

columns

Question 39

simple

Answer 39

no layers

Question 40

stratified

Answer 40

multiple layers

Question 41

adipose

Answer 41

packing bubbles, provide support, slide will look blank, honey combs

Question 42

reticular

Answer 42

dark tissue

Question 43

dense reg.

Answer 43

packed together, fibers outside, lower power

Question 44

dense irreg.

Answer 44

interloping, mesh like

Question 45

blood

Answer 45

RBC and WBC, wide open, round cells