Unit 3

Question 1

The lens through which you look to examine the slide, carries a 10x power of magnification

Answer 1

Ocular Lens

Question 2

Allows to switch between objectives

Answer 2

nosepiece

Question 3

Attached to the nosepiece with various powers of magnification (4x,10x, 100x)

Answer 3

Objective lens

Question 4

Surface on which the slide sits

Answer 4

Mechanical stage

Question 5

The lens that sits under the stage, focuses the light of the lamp on the specimen

Answer 5

Condenser

Question 6

Thin flat piece of glass to hold the specimen during examination

Answer 6

Slide

Question 7

to hold the slide in place

Answer 7

Slide clips

Question 8

Supports the body, and together with the base helps the user carry microscope

Answer 8

Arm

Question 9

sharpens the focus

Answer 9

fine knob

Question 10

allows for gross focusing

Answer 10

coarse knob

Question 11

The ________ is an outside layer that surrounds every living cell

Answer 11

cell membrane

Question 12

what are the functions of the cell membrane

Answer 12

providing cells with physical isolation from the extracellular fluid, regulation of exchange with environment. allowing for sensitivity to the environments, and providing structural support

Question 13

Example of membrane lipids

Answer 13

glycolipids, cholesterol, phospholipids

Question 14

example of membrane proteins

Answer 14

glycoproteins, peripheral protein, integral proteins

Question 15

a steroid that stabilizes the membrane structure in the face of changing temperatures and conditions

Answer 15

Cholesterol

Question 16

the cell membrane possesses a phospholipid bilayer, with hydrophilic heads facing outwards and the hydrophobic tails facing inwards

Answer 16

Phospolipids

Question 17

maintain membrane stability, facilitate aggregation, and may act as identifiers which function in cell recognition by the immune system

Answer 17

Glycolipids

Question 20

Detoxify chemicals such as hydrogen peroxide

Answer 20

Smooth endoplasmic reticulum