biology reviewer

reviewer for grade 12 bio

very small

micro means?

to observed

scope means?

microscope

a tool that can be used to observed very small specimen or bacteria

light microscope

uses natural light to see the specimen or bacteria

electronic microscope

uses electricity to see the specimen and have a high magnification

compound microscope

a high magnification microscope that uses two lenses to multiply the magnification

simple microscope

a microscope that uses a single magnification lens to enlarge an image

magnification,resolution,contrast

three types of parameters of a microscope

magnification

it makes a specimen of its actual size bigger (2000x) or enhances the size

resolution

clarity of the image

contrast

to highlight (staining) to see the specimen easier

ocular/eyepiece

Its the lenses that you look through and magnifies the object

body tube

hold the eyepiece/ocular and maintains the proper distance between the ocular and objective

revolving nosepiece

holds the objective lenses and it rotates

objective lenses

its the three or four lenses that magnify a object at a certain magnification unit

scanning,lpo,hpo,oio

types of objective lenses

stage

holds the slide and has a hole in the middle for the diaphgram

diaphgram

it controls the light going through the microscope

mirror

it bounces the light to the stage or microscope

course adjustment knobs

moves the body tube in large movement

fine adjustment knobs

moves the body tube in fine or small movement

arm

acts as handle and supports the body tube

stage clips

hold the slides in place

base

supports the entire microscope

robert hooke

★ coined the term “cell”

★ observed the cell of a cork

small room

cell means ?

anton van leewenhooke

★observed pond water and saw organism moving

★father of microbiology

★ first to see microorganism

robert brown

★discovered nucleus

★human cells

matthias j. schleiden

★ a german botanist

★ discovered plant cells

theodore schwain

★a german zoologist

★ discovered animal cells

rudolf virchow

★discovered cell division

★populated the cell theory

cell theory

all nonliving & living things are made out of cells and the cells are the fundamental of life and came from pre-existing cell

dividing themselves

pre-existing cells multiply by?

mitosis and miosis

two types of cell division

bateria,algae,fungi,archea

prokaryotic cells are

animals,plants,humans

eukaryotic cells are

similarities of eukaryotic and prokaryotic

★ dna

★mitochondria

★organelles

★cell membrane

★ cytosol

difference of eukaryotic and prokaryotic

★location of dna

eukaryotic cells dna are stored in nucleus

while prokaryotic cells dna are in nucleoid

★ size of the cells

eukaryotic cells is bigger than the prokaryotic cells

before or came first

pro in prokaryotic means

true or composed of one or more cells

eukra in eukrayotic means

Thanks!

Good luck on the quiz!