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1

Also called steroscopic microscopes

Dissecting microscopes

2

includes both scanning and transmission

electron microscopes

3

also called light microscopes

compound microscopes

4

are used to view the surface of relatively larger specimens at lower power typically no more than 10x,

dissecting microscopes

5

functions like elaborate magnifying glasses and would be used to observe the gross anatomy of a living, preserved, or dissected specimen at greater detail

dissecting microscopes

6

scientific instruments that use a beam of highly energetic electrons to examine objects on a very fine scale (up to several 100,000x

electron microscopes

7

What type of microscope do we use in lab

compound microscopes

8

Describe how the compound microscope works

compound microscopes are limited by the physics to 500x or 1000x magnification, it consists of two lenses and associated hardware that make viewing of specimen easier

9

the lower lens of the compound microscope is called

objective lens

10

the uppermost lens of the compound microscope is called

the ocular lens

11

the part through which the person looks through is

the uppermost lens which is the ocular lens

12

are mounted on a turret, allowing rapid changing

the lower lens which are the objective lens

13

name the power listed on the objective lenses scope

4x scanning power, 10x low power, 40x high power

14

hols the ocular and objective lenses in place

the body tube

15

most microbiological specimens are mounted on glass

slides

16

glass slides with cover slips are placed on

the stage

17

holds the slide firmly on the stage

usually clips or clamps

18

what two objects are located beneath the stage

a light source and a condenser lens

19

why is the compound microscope called light microscope

because it has a light source

20

why must the specimen be sliced thin

the specimen must be sliced then enough so that light can pass through the specimen to be viewed

21

focuses on light through a hole in the stage

condenser

22

what does the condenser include

an iris

23

varies the amount of light passing through a specimen

the iris

24

what happens to the light as it passes through the specimen

the goes through the objective and ocular lens and through the eye of the observer

25

this image is calculated by multiplying the magnification of the ocular by the magnification of the objective

the total magnification

26

what happens to light as it passes through any object (glass, air, specimens, etc.),

it bends

27

the bending of light is called

refraction

28

is a measurement of the extent that the substance bends light

the refractive index of a substance

29

distortion of the image

excessive refraction

30

at magnifications of less than 500x

the distortion is minimal