Word BankWord Bank

DiaphragmDiaphragm

ArmArm

BaseBase

StageStage

Revolving nosepieceRevolving nosepiece

Light sourceLight source

ObjectivesObjectives

eyepieceeyepiece

Body tubeBody tube

Coarse adjustment knobCoarse adjustment knob

Fine adjustment knobFine adjustment knob

Stage clipsStage clips

Cell OrganellesCell Organelles

Cell OrganellesCell OrganellesOrganelleOrganelle= = ““little little organorgan””Found only inside Found only inside eukaryotic cellseukaryotic cellsAll the fluid like All the fluid like substance between substance between the organelles is the organelles is called called cytosol.cytosol.Everything in a cell Everything in a cell except the nucleus is except the nucleus is cytoplasmcytoplasm

Cell MembraneCell MembraneBoundary of the cellBoundary of the cell

Made of a phosphoMade of a phospholipidlipid bibilayerlayer

CytoskeletonCytoskeletonActs as Acts as skeletonskeleton and and musclemuscle

Provides shape and structureProvides shape and structure

Helps move organelles around the cellHelps move organelles around the cell

Two types of protein FilamentsTwo types of protein Filaments::

1.1.Microfilaments-Microfilaments-made up of actin, provide cell made up of actin, provide cell support and helps the cell movesupport and helps the cell move..

2.2.Microtubules:-Microtubules:-hollow structures made up of hollow structures made up of tubulins, help the cell maintain its shape and aids tubulins, help the cell maintain its shape and aids in cell division.in cell division.

Cell WallCell WallFound in Found in plantplant and and bacterialbacterial cells cells

Rigid, protective Rigid, protective barrierbarrier

Located Located outsideoutside of the of the cell membranecell membrane

Made of cellulose Made of cellulose ((fiberfiber))

NucleusNucleusControl center of the cellControl center of the cell

Contains Contains DNADNA

Surrounded by a double Surrounded by a double membrane called the membrane called the Nuclear Envelope.Nuclear Envelope.

The Nuclear Nuclear The Nuclear Nuclear Envelope Envelope has pores that has pores that allow materials to move allow materials to move in and out of the cell.in and out of the cell.

NucleusNucleus

ChromosomesChromosomes are found in the nucleus, are found in the nucleus, they contain genetic information.they contain genetic information.

The center of the nucleus is the The center of the nucleus is the NucleolusNucleolus..

That is where the assembly of ribosomes That is where the assembly of ribosomes begins.begins.

http://www.biomanbio.com/GamesandLabs/Cellgames/CellExplorerAnimalCell.html

Endoplasmic Endoplasmic ReticulumReticulum

A.k.a. A.k.a. ““ERER””Connected to nuclear Connected to nuclear membranemembraneHighway of the cellHighway of the cellRough ERRough ER: studded : studded with ribosomes; it with ribosomes; it makes proteinsmakes proteinsSmooth ERSmooth ER: no : no ribosomes; it makes ribosomes; it makes lipidslipids

RibosomeRibosomeSite of protein Site of protein synthesissynthesis

Found attached to Found attached to rough ER or floating rough ER or floating free in cytosolfree in cytosol

Produced in a part of Produced in a part of the nucleus called the the nucleus called the nucleolusnucleolus

That looks familiar…what is a That looks familiar…what is a polypeptidepolypeptide??

Golgi ApparatusGolgi ApparatusLooks like a stack of Looks like a stack of platesplates

Stores, modifies and Stores, modifies and packages proteinspackages proteins

Molecules transported to Molecules transported to and from the Golgi by and from the Golgi by means of means of vesiclesvesicles

Vesicles Vesicles are used to are used to store and move materials store and move materials between organelles and between organelles and to cell surface.to cell surface.

LysosomesLysosomesGarbage disposal Garbage disposal of the cellof the cell

Contain digestive Contain digestive enzymes that enzymes that break down break down wasteswastes

Which organelles do lysosomes work with?

VacuolesVacuolesLarge Large centralcentral vacuole vacuole usually in usually in plantplant cells cells

Many smaller Many smaller vacuoles in vacuoles in animalanimal cellscells

Storage container for Storage container for water, food, water, food, enzymesenzymes, , wastes, pigments, etc.wastes, pigments, etc.

MitochondriaMitochondria““Powerhouse of the Powerhouse of the cellcell””- Makes ATP- Makes ATPCellular respirationCellular respiration occurs here to release occurs here to release energy for the cell to energy for the cell to useuseBound by a double Bound by a double membrane.membrane.

ChloroplastChloroplastFound only in plant Found only in plant cellscells

Contains the green Contains the green pigment pigment chlorophyllchlorophyll

Site of food (Site of food (glucoseglucose) ) productionproduction

Bound by a double Bound by a double membranemembrane

CentrioleCentrioleAids in cell divisionAids in cell division

Usually found only in Usually found only in animal cellsanimal cells

Made of microtubulesMade of microtubules

Where else have we talked about microtubules?

Quick ReviewQuick ReviewWhich organelle is the control center of the cell? Which organelle is the control center of the cell?

NucleusNucleus

Which organelle holds the cell together?Which organelle holds the cell together?

Cell membraneCell membrane

Which organelles are not found in animal cells?Which organelles are not found in animal cells?

Cell wall, central vacuole, chloroplastsCell wall, central vacuole, chloroplasts

Which organelle helps plant cells make food?Which organelle helps plant cells make food?

ChloroplastsChloroplasts

What does E.R. stand for?What does E.R. stand for?

Endoplasmic reticulumEndoplasmic reticulum