Available Images and Animations: Cell Unit

Cell Images

Acid rainForest showing effects of acid rain
Animal cell structureDiagram of an animal cell
Animal structure - unlabeledDiagram of an animal cell without labels
ATP : cellular workHow cells use ATP energy to power cellular work.
ATP : Molecular motorsCytoplasmic transport can move vesicles along the inside of the cell on microtubules.
ATP : structureMolecular Structure of ATP
ATP moleculeunlabeled ATP molecule, space filling
ATP molecule 2A structural model of ATP
Bacteria - bacilliClose up of bacilli
Bacteria - cell shapeBacillus, spirilli, and cocci are illustrated.
Bacteria - cells, spirilliClose up of spirilli
Bacteria : bacillusSome bacteria are rod shaped. They are called bacillus bacteria.
Bacteria : CocciScanning Electron Micrograph (SEM) of cocci bacteria.
Bacterium DrawingLabeled drawing of a bacterium.
Bacterium EMUnknown bacterium with cilia
Calcium PumpDescription of a calcium pump.
Cell - cytoskeletonThe cytoskeletan of a typical animal cell
Cell - structure and EMHow a drawing of a eukaryotic cell maps to a transmission electron micrograph.
Cells - Light MicroscopeCells are seen under a light microscope.
Cells - RBC - SEMNice SEM views of some erythrocytes (red blood cells).
Cells -: size ofHow big are cells?
CentriolesDetail of centrioles.
Chloroplasts Detail of chloroplasts and correspondence with electron micrographs.
Cilia on a ParameciumScanning Electron Micrograph (SEM) of a ciliated paramecium.
DiffusionSimple duffision is illustrated with dissolving a sugar cube in a beaker of water.
Diffusion - facilitatedProtein facilitated diffusion
Egg and Sperm - Light MicroscopeLight micrograph of sperm and egg
Electron MicroscopeA photograph of an electron microscope
Endo- and ExocytosisThe processes of endocytosis and exocytosis are compared.
EndocytosisThe two types of endocytosis (phagocytosis and pinocytosis) are illustrated.
Endomembrane SystemA good summary showing endomembrane interactions.
Endoplasmic reticulum Rough and smooth endoplasmic reticula are compared.
Endoplasmic reticulum Electron micrograph showing rough and smoth endoplasmic reticulum.
Endoplasmic reticulum Rough ER is illustrated and compared to an electron micrograph.
Endoplasmic reticulum 4Compare rough and smooth endoplasmic reticulum in an electron micrograph
EndosymbiosisThe process of endosymbiosis is illustrated.
Enegy and LifeMice are shown on grain stalks.
Energy - ATP cycleSolar energy is taken in by plants and it is stored in chemical bonds such as ATP.
Energy - cellularIllustrates three more ways ATP is used to do cellular work.,
Energy - potential and kineticA ball on top of a hill represents potential energy when at resting, kinetic when rolling down.
EntropyThe world naturally becomes disorganized
Enzyme sensitivityOptimum temperature for different bacteria.
Enzyme sensitivityEnzymes work best under particular conditions of pH and temperature.
Enzyme - activation energyA reaction that requires an input of energy to start, but ends releasing energy.
Enzyme - active siteThe active site site of an enzyme will bind with a substrate.
Enzyme - active site with reactantThe reactant bound to the active site.
Enzyme - active site, step 3The enzyme-substrate (reactant) complex changes shape and facilitates the reaction.
Enzyme - allosteric Enzyme repression and activation
Enzyme - binding reactantThe enzyme changes shape when a reactant binds to the active site.
Enzyme : competitive inhibitionThe active site on a protein can be blocked by a competitive inhibitor, preventing action.
Enzyme and substrateStep one in enzyme action.
Enzyme inhibitionCompetitive and non-competitive inhibition can control enzyme action
Enzymes - how they workBasic mechanism of enzyme-substrate binding and catalyzed chemical reaction.
Enzymes - humanOptimum pH of pepsin and trypsin.
Enzyms : biochemical pathwayHypothetical, membrane bound biochemical pathway
Eukaryotic Cell DrawingAn excellent diagram of an typical eukaryotic animal cell.
Eukaryotic Cell EMEukaryotic cell electron micrograph with explanatory diagrams.
Eukaryotic Cell StructuresSecond half of Eukaryotic Cell Structures
Eukaryotic Cell StructuresEukaryotic cell structures and their functions.
Eukaryotic Cell StructuresStructure and function of some structures in the eukaryotic cell
Exocytosis Electron Micrograph of a releasing vesicle and diagram.
Extracellular matrixPlasma membrane and extracellular matrix.
Facilitated DiffusionFacilitated diffuse of glucose through a plasma membrane.
Flagella and ciliamicrotubules are the building blocks for flagella and cilia.
Flagella and ciliamicrotubules are the building blocks for flagella and cilia.
Glucose - effectsrate of uptake of glucose vs. concentration
Golgi Body, ER and vesiclesEndoplasmic reticulum and Golgi Bodies interact with vesicles.
Golgi complexsee the Golgi complex in an electron micrograph
Golgi complex 1The Golgi Body is complex, 3-dimensional organelle. Diagram and EM
Golgi complex 5EM of Golgi Body
Human KaryotypeHuman chromosomes in false color,
Light MicroscopeThe stage of a conventional light microscope.
Lipid bilayerLipid bilayer showing the orientation of polar and non-polar ends of the phospholipids.
Membrane - coupled channelA coupled channel (Na/K) in the membrane, driven by glucose concentration,
Membrane : Lipid bilayer sphereLipid bilayer forming a microsphere, similar to a membraned organelle.,
Membrane : Proton PumpATP can drive mechanisms to pump protons around, thus modifying the pH of the cytoplasm.
Membrane : TransportSummary of diffusion, passive transport and active transport.
Membrane PermeabilitySelective permeability of the plasma membrane
Membrane StructureLandscape drawing of a generalized membrane.
MicrofilamentsMicrotubules, microfilaments and other filaments provide structure inside the cell.
Microscopes - ElectronThe two types of electron microscopes are explained.
Microscopes - lightThe different types of light microscopes are explained.
Microscopes: types ofCompare the different type of microscopes
MicrotubuleDetailed drawing and transmission electron micrograph of a microtubule.
Mitochondria The structure of the mitochondrion. Drawing and EM.
Mitochondria - EMTransmission electron micrograph of a long mitochondrion.
Mitosis - Light MicroscopeThe phases of the cell cylce as seen through the light microscope.
Nuclear PoresThe nuclear membrane has intricate pores in its structure.
Nuclear PoresThe nuclear membrane has intricate pores in its structure.
Nucleus and ERThe movement of mRNA through the nuclear envelope and onto the rough ER
OsmosisDiagrams of beakers demonstrating hypo- and hypertonic solutions
PhagocytosisDiagram of phagocytosis.
PhospholipidSpace filling model of a phospholipid with labels.
Pinocytotsis - mediatedProtein mediated pinocytosis
Plant - cell structureElectron Micrograph of a plant cell
Plant - cell wallsPlant cells have rigid cell walls. Animals do not have cell walls, but both have cell membranes.
Plant - vacuolePlant cells often have large vacuoles - liquid filled bags in the cytoplasm.
Plant cell structureA drawing of a generalized plant cell.
Prokaryote cellA drawing of generalized prokaryote with labels.
Prokaryotes : BacteriaA spirilli bacterium
Prokaryotes : BacteriaThe bacteria (bacillis) on the head of a pin.
Proteins - embeddedDrawing of a membrane with embedded biomolecules.
Proteins : Polar regionsPolar areas of proteins stick above the non-polar bilayer and hydrophobic protein parts.
Reaction - endergonicSome reactions need a net energy input. They are called endergonic reactions.
Reaction - Oxidation/ReductionOxidation - Reduction reactions involves the rearrangement of electrons.
Reactions - catalyzedA catalyst is a substance that reduces the activation energy of an exergonic reaction.
Reactions - chemicalEndergonic, Exogonic and Catalyzed reaction curves.
Receptor - Mediated 5Electron Micrograph of a pinocytosis, possibly mediated by specific proteins.
Red Blood Cells - Electron MicrograEM of red blood cells.
Red Blood Cells - Light MicrscopeLight micrograph of erythrocytes (red blood cells) in capillaries.
Scale of VisibilityThis drawing presents the range of overlap of the light and the electron microscope.
Surface to VolumeThe relationship between surface area and volume is crucial to the size and shape of cells.
Surface to Volume RatioApplied to a cell, the surface area to volume ratio is important.
Transport MechanismsMechanisms for transport across cell membranes.
Virus EMElectron Micrograph of a spherical virus.
Viruses - DrawingDrawings of four types of viruses. HIV is type d.

Cell Animations

Active TransportWatch active transport occur through a membrane
Aerobic RespirationThe Entire Glycolysis and Kreb's Cycle
Membrane Phospholipid BilayerExample of a phospholipid bilayer forming microspheres
Features of Cellsprokaryoitc, plant and animals cells are compared
Cytoskeleton of the Celldescription of microtubules, microfilaments and intermediate filaments
Electron MicroscopeHow an electron microscope works
Energy FlowEnergy flow and material cycling is presented
Eukaryotic Cell Structurecompare a plant cell and an animal cell
Flagelladescription of basal body and flagella on the microtubule level
The Light Microscopedetails how a light microscope works.
Membrane ProteinsPhospholipid bilayer with embedded proteins
Nucleus and EndomembranesShows how the nucleus works with the endomembrane system
Passive Transportdiagrams passive transport of glucose molecules
Active TransportATP is used to create a protein that can pump
Binding SaturationShows how an a receptor can get saturated.
Biochemical PathwayA visual explanation of a membrane-bound biochemical pathway.
Co-transportexcellent description symport and antiport transporters and Na ion pump.
Diffusionvizualization of diffusion and factors effecting diffusion
Diffusion 1shows diffusion into a cell
Endo- and Exo-cytosisendocytosis and exocytosis are graphically presented
Energy for ActivityEnergy look up for different activities
Enzyme ActionThe action of sucrase is explained
EnzymesGeneric description of enzyme action
Facilitated Diffusiongeneralized facilitated diffusion is diagrammed and explained
Feedback Inhibitiongeneralized example of feedback inhibition in a biochemical pathway.
Horizontal TransferTransfer of genes between species
Proton Pumpdescription of the proton pump complex and chemiosmosis
Sodium and Potassiumthe sodium and potassium pump is explained