identifying the components of a compound microscope

Identifying the components of a Compound MicroscopeClass Objective: Identify the major parts of a compound

microscope

BaseLightDiaphragm

Stage

Stage clipsObjective lenses

Nosepiece

Eyepiece

Arm

Coarse focusFine focusPower switch

WHAT ARE CELLS?9/29/11

Every living thing is made of cells!

Class Objectives: 1. Identify 3 components that ALL cells have2. Explain why cells are important to All living things3. Explain where the heck cells come from

What makes a cell?

3 things ALL cells have:• Cell membrane (barrier)• DNA (genetic info)• Cytoplasm (fluid)

Class Objectives: 1. Identify 3components that ALL cells have2. Explain why cells are important to All living things3. Explain where the heck cells come from

Sketch both cells in your notebook.Label which is eukaryotic and prokaryotic.

Cell membrane

DNA

Cytoplasm(DNA floating

in cytoplasm)

(DNA inside the nucleus)

ProkaryoteEukaryote

Important Ideas About Cells: (aka- the Cell Theory)

1. All living things are made of cells.

• Multicellular Organisms (many cells)

• Unicellular Organisms (one-celled)

Class Objectives: 1. Identify 3 components that ALL cells have2. Explain why cells are important to All living things3. Explain where the heck cells come from

Class Objectives: 1. Identify 3 components that ALL cells have2. Explain why cells are important to All living things3. Explain where the heck cells come from

2. Cells give an organism its structure and function - they control everything the organism needs to do to stay alive

Even the most complex

organisms are made of a bunch of different types of cells working together.

Important Ideas About Cells: (aka- the Cell Theory)

Class Objectives: 1. Identify 3 components that ALL cells have2. Explain why cells are important to All living things3. Explain where the heck cells come from

3. New cells come from pre-existing cells.

A eukaryotic cell splits into two identical daughter cells by the process of mitosis.

Important Ideas About Cells: (aka- the Cell Theory)

A prokaryotic cell splits into two identical cells by the process of binary fission.

Nucleus

Lysosome

Chloroplast

VacuoleMitochondrionCytoplasmCell

MembraneCell Wall

E.R. (rough)E.R.

(smooth)

RibosomeGolgi Apparatus

Plant Cell Diagram:

Class Objectives: 1. Identify the major organelles in a eukaryotic cell2. Explain the functions of the major organelles in a eukaryotic cell3. Make connections between the major organelles in a eukaryotic

cell

Nucleus

Golgi ApparatusCytoskeletonCell

MembraneCytoplasmRibosomeMitochondr

ion

Lysosome

Mitochondrion

E.R.Ribosomes

Animal Cell Diagram

Class Objectives: 1. Identify the major organelles in a eukaryotic cell2. Explain the functions of the major organelles in a eukaryotic cell3. Make connections between the major organelles in a eukaryotic

cell

A DAY IN THE LIFE OF A CELLHow Cells Make and Use Proteins

Put this in your notebook:Proteins – Large molecules that do many

important jobs in living things, such as: Form body structures (muscle, bone, hair,

eyes, nails, skin) Act as enzymes to speed up chemical reactions

(like digestion) in our bodies Act as hormones that send signals through the

bloodstream

[And many other things we’ll learn about later!]

Class Objectives: 1. Describe 3 things that proteins do for the body

ProteinsProteins are large molecules that do many

important jobs in living things, such as: Form body structures (muscle, bone, hair,

nails, skin) Act as enzymes to speed up chemical

reactions (like digestion) in our bodies Act as hormones that send signals

through the bloodstream[And many other things we’ll learn about

later!]

A DAY IN THE LIFE OF THE CELL

A DAY IN THE LIFE OF THE CELL

Ribosome

s Glucose + O2

: :B

l oo

d

St r

ea

m: :

Cell Respiration

Cytoplasm

CO2 + H2O

ATP energy

(for the cell to use)

Vesicle

(“bubble” that

transports

proteins)

Nucleus

DNA

(Holds genetic information)

RNA

(Copies info from DNA and carries it to the Ribosome to

make proteins)

Lysosome

Protein could go to membrane to be released into blood stream

Golgi

Apparatus

(Modifies and shapes the protein)Protein

being formed

at Riboso

me

Cell

Mem

bran

e

Mitochondri

a

(transport

s and

packages

proteins)

E.R.

Released

into blood

stream and

used as

hormone

ProteinRibosome

RNA

Or the protein could go to a lysosome to be a digestive enzyme

Food or waste particle