BIO:"making it big"

Created by ilianaioannides 

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17 terms · Quiz on making it big THE MOVIE tomorrow :'(

Leewenhock

-described single-celled organisms "animalcules" (protozoa)

Hooke

-confirmed Leewenhock's theory of "animalcules
-saw "cells"
- replicated Leewenhock's compound microscope

aberration

distortion

spherical aberration

distorts edges of images

chromatic aberration

distorts color (rainbow)

resolution

the ability of a microscope to distinguish between things that are close together

magnification

enlargement of specimens

specimen preparation

microtome & stain

microtome

-tissue razored into thin sheets
-lets light pass through

stain

-lets us see clearer and in more detail

Disease Theory (Koch)

-bacteria=agents of disease
-vector (organism that transmits pathogens) and disease

Microdissection apparatus

-used for eye surgery

electron microscope

-more magnification
-smaller field of view
-no color
-organism must be dead
4 types: vacuum, gold, transmission, and scanning

vacuum electron microscope

air pumped out

gold electron microscope

specimen must be mounted on a grid of gold
(gold prevents build up of electric charge)

scanning electron microscope

looks at surfaces

GOOD LUCK

HOPE FOR THE BEST!!

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