Available Images and Animations: Cell Unit

Cell Images

Acid rain Forest showing effects of acid rain
Animal cell structure Diagram of an animal cell
Animal structure - unlabeled Diagram of an animal cell without labels
ATP : cellular work How cells use ATP energy to power cellular work.
ATP : Molecular motors Cytoplasmic transport can move vesicles along the inside of the cell on microtubules.
ATP : structure Molecular Structure of ATP
ATP molecule unlabeled ATP molecule, space filling
ATP molecule 2 A structural model of ATP
Bacteria - bacilli Close up of bacilli
Bacteria - cell shape Bacillus, spirilli, and cocci are illustrated.
Bacteria - cells, spirilli Close up of spirilli
Bacteria : bacillus Some bacteria are rod shaped. They are called bacillus bacteria.
Bacteria : Cocci Scanning Electron Micrograph (SEM) of cocci bacteria.
Bacterium Drawing Labeled drawing of a bacterium.
Bacterium EM Unknown bacterium with cilia
Calcium Pump Description of a calcium pump.
Cell - cytoskeleton The cytoskeletan of a typical animal cell
Cell - structure and EM How a drawing of a eukaryotic cell maps to a transmission electron micrograph.
Cells - Light Microscope Cells are seen under a light microscope.
Cells - RBC - SEM Nice SEM views of some erythrocytes (red blood cells).
Cells -: size of How big are cells?
Centrioles Detail of centrioles.
Chloroplasts Detail of chloroplasts and correspondence with electron micrographs.
Cilia on a Paramecium Scanning Electron Micrograph (SEM) of a ciliated paramecium.
Diffusion Simple duffision is illustrated with dissolving a sugar cube in a beaker of water.
Diffusion - facilitated Protein facilitated diffusion
Egg and Sperm - Light Microscope Light micrograph of sperm and egg
Electron Microscope A photograph of an electron microscope
Endo- and Exocytosis The processes of endocytosis and exocytosis are compared.
Endocytosis The two types of endocytosis (phagocytosis and pinocytosis) are illustrated.
Endomembrane System A 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 4 Compare rough and smooth endoplasmic reticulum in an electron micrograph
Endosymbiosis The process of endosymbiosis is illustrated.
Enegy and Life Mice are shown on grain stalks.
Energy - ATP cycle Solar energy is taken in by plants and it is stored in chemical bonds such as ATP.
Energy - cellular Illustrates three more ways ATP is used to do cellular work.,
Energy - potential and kinetic A ball on top of a hill represents potential energy when at resting, kinetic when rolling down.
Entropy The world naturally becomes disorganized
Enzyme sensitivity Optimum temperature for different bacteria.
Enzyme sensitivity Enzymes work best under particular conditions of pH and temperature.
Enzyme - activation energy A reaction that requires an input of energy to start, but ends releasing energy.
Enzyme - active site The active site site of an enzyme will bind with a substrate.
Enzyme - active site with reactant The reactant bound to the active site.
Enzyme - active site, step 3 The enzyme-substrate (reactant) complex changes shape and facilitates the reaction.
Enzyme - allosteric Enzyme repression and activation
Enzyme - binding reactant The enzyme changes shape when a reactant binds to the active site.
Enzyme : competitive inhibition The active site on a protein can be blocked by a competitive inhibitor, preventing action.
Enzyme and substrate Step one in enzyme action.
Enzyme inhibition Competitive and non-competitive inhibition can control enzyme action
Enzymes - how they work Basic mechanism of enzyme-substrate binding and catalyzed chemical reaction.
Enzymes - human Optimum pH of pepsin and trypsin.
Enzyms : biochemical pathway Hypothetical, membrane bound biochemical pathway
Eukaryotic Cell Drawing An excellent diagram of an typical eukaryotic animal cell.
Eukaryotic Cell EM Eukaryotic cell electron micrograph with explanatory diagrams.
Eukaryotic Cell Structures Second half of Eukaryotic Cell Structures
Eukaryotic Cell Structures Eukaryotic cell structures and their functions.
Eukaryotic Cell Structures Structure and function of some structures in the eukaryotic cell
Exocytosis Electron Micrograph of a releasing vesicle and diagram.
Extracellular matrix Plasma membrane and extracellular matrix.
Facilitated Diffusion Facilitated diffuse of glucose through a plasma membrane.
Flagella and cilia microtubules are the building blocks for flagella and cilia.
Flagella and cilia microtubules are the building blocks for flagella and cilia.
Glucose - effects rate of uptake of glucose vs. concentration
Golgi Body, ER and vesicles Endoplasmic reticulum and Golgi Bodies interact with vesicles.
Golgi complex see the Golgi complex in an electron micrograph
Golgi complex 1 The Golgi Body is complex, 3-dimensional organelle. Diagram and EM
Golgi complex 5 EM of Golgi Body
Human Karyotype Human chromosomes in false color,
Light Microscope The stage of a conventional light microscope.
Lipid bilayer Lipid bilayer showing the orientation of polar and non-polar ends of the phospholipids.
Membrane - coupled channel A coupled channel (Na/K) in the membrane, driven by glucose concentration,
Membrane : Lipid bilayer sphere Lipid bilayer forming a microsphere, similar to a membraned organelle.,
Membrane : Proton Pump ATP can drive mechanisms to pump protons around, thus modifying the pH of the cytoplasm.
Membrane : Transport Summary of diffusion, passive transport and active transport.
Membrane Permeability Selective permeability of the plasma membrane
Membrane Structure Landscape drawing of a generalized membrane.
Microfilaments Microtubules, microfilaments and other filaments provide structure inside the cell.
Microscopes - Electron The two types of electron microscopes are explained.
Microscopes - light The different types of light microscopes are explained.
Microscopes: types of Compare the different type of microscopes
Microtubule Detailed drawing and transmission electron micrograph of a microtubule.
Mitochondria The structure of the mitochondrion. Drawing and EM.
Mitochondria - EM Transmission electron micrograph of a long mitochondrion.
Mitosis - Light Microscope The phases of the cell cylce as seen through the light microscope.
Nuclear Pores The nuclear membrane has intricate pores in its structure.
Nuclear Pores The nuclear membrane has intricate pores in its structure.
Nucleus and ER The movement of mRNA through the nuclear envelope and onto the rough ER
Osmosis Diagrams of beakers demonstrating hypo- and hypertonic solutions
Phagocytosis Diagram of phagocytosis.
Phospholipid Space filling model of a phospholipid with labels.
Pinocytotsis - mediated Protein mediated pinocytosis
Plant - cell structure Electron Micrograph of a plant cell
Plant - cell walls Plant cells have rigid cell walls. Animals do not have cell walls, but both have cell membranes.
Plant - vacuole Plant cells often have large vacuoles - liquid filled bags in the cytoplasm.
Plant cell structure A drawing of a generalized plant cell.
Prokaryote cell A drawing of generalized prokaryote with labels.
Prokaryotes : Bacteria A spirilli bacterium
Prokaryotes : Bacteria The bacteria (bacillis) on the head of a pin.
Proteins - embedded Drawing of a membrane with embedded biomolecules.
Proteins : Polar regions Polar areas of proteins stick above the non-polar bilayer and hydrophobic protein parts.
Reaction - endergonic Some reactions need a net energy input. They are called endergonic reactions.
Reaction - Oxidation/Reduction Oxidation - Reduction reactions involves the rearrangement of electrons.
Reactions - catalyzed A catalyst is a substance that reduces the activation energy of an exergonic reaction.
Reactions - chemical Endergonic, Exogonic and Catalyzed reaction curves.
Receptor - Mediated 5 Electron Micrograph of a pinocytosis, possibly mediated by specific proteins.
Red Blood Cells - Electron Microgra EM of red blood cells.
Red Blood Cells - Light Micrscope Light micrograph of erythrocytes (red blood cells) in capillaries.
Scale of Visibility This drawing presents the range of overlap of the light and the electron microscope.
Surface to Volume The relationship between surface area and volume is crucial to the size and shape of cells.
Surface to Volume Ratio Applied to a cell, the surface area to volume ratio is important.
Transport Mechanisms Mechanisms for transport across cell membranes.
Virus EM Electron Micrograph of a spherical virus.
Viruses - Drawing Drawings of four types of viruses. HIV is type d.

Cell Animations

Active Transport Watch active transport occur through a membrane
Aerobic Respiration The Entire Glycolysis and Kreb's Cycle
Membrane Phospholipid Bilayer Example of a phospholipid bilayer forming microspheres
Features of Cells prokaryoitc, plant and animals cells are compared
Cytoskeleton of the Cell description of microtubules, microfilaments and intermediate filaments
Electron Microscope How an electron microscope works
Energy Flow Energy flow and material cycling is presented
Eukaryotic Cell Structure compare a plant cell and an animal cell
Flagella description of basal body and flagella on the microtubule level
The Light Microscope details how a light microscope works.
Membrane Proteins Phospholipid bilayer with embedded proteins
Nucleus and Endomembranes Shows how the nucleus works with the endomembrane system
Passive Transport diagrams passive transport of glucose molecules
Active Transport ATP is used to create a protein that can pump
Binding Saturation Shows how an a receptor can get saturated.
Biochemical Pathway A visual explanation of a membrane-bound biochemical pathway.
Co-transport excellent description symport and antiport transporters and Na ion pump.
Diffusion vizualization of diffusion and factors effecting diffusion
Diffusion 1 shows diffusion into a cell
Endo- and Exo-cytosis endocytosis and exocytosis are graphically presented
Energy for Activity Energy look up for different activities
Enzyme Action The action of sucrase is explained
Enzymes Generic description of enzyme action
Facilitated Diffusion generalized facilitated diffusion is diagrammed and explained
Feedback Inhibition generalized example of feedback inhibition in a biochemical pathway.
Horizontal Transfer Transfer of genes between species
Proton Pump description of the proton pump complex and chemiosmosis
Sodium and Potassium the sodium and potassium pump is explained

Acid rain	Forest showing effects of acid rain
Animal cell structure	Diagram of an animal cell
Animal structure - unlabeled	Diagram of an animal cell without labels
ATP : cellular work	How cells use ATP energy to power cellular work.
ATP : Molecular motors	Cytoplasmic transport can move vesicles along the inside of the cell on microtubules.
ATP : structure	Molecular Structure of ATP
ATP molecule	unlabeled ATP molecule, space filling
ATP molecule 2	A structural model of ATP
Bacteria - bacilli	Close up of bacilli
Bacteria - cell shape	Bacillus, spirilli, and cocci are illustrated.
Bacteria - cells, spirilli	Close up of spirilli
Bacteria : bacillus	Some bacteria are rod shaped. They are called bacillus bacteria.
Bacteria : Cocci	Scanning Electron Micrograph (SEM) of cocci bacteria.
Bacterium Drawing	Labeled drawing of a bacterium.
Bacterium EM	Unknown bacterium with cilia
Calcium Pump	Description of a calcium pump.
Cell - cytoskeleton	The cytoskeletan of a typical animal cell
Cell - structure and EM	How a drawing of a eukaryotic cell maps to a transmission electron micrograph.
Cells - Light Microscope	Cells are seen under a light microscope.
Cells - RBC - SEM	Nice SEM views of some erythrocytes (red blood cells).
Cells -: size of	How big are cells?
Centrioles	Detail of centrioles.
Chloroplasts	Detail of chloroplasts and correspondence with electron micrographs.
Cilia on a Paramecium	Scanning Electron Micrograph (SEM) of a ciliated paramecium.
Diffusion	Simple duffision is illustrated with dissolving a sugar cube in a beaker of water.
Diffusion - facilitated	Protein facilitated diffusion
Egg and Sperm - Light Microscope	Light micrograph of sperm and egg
Electron Microscope	A photograph of an electron microscope
Endo- and Exocytosis	The processes of endocytosis and exocytosis are compared.
Endocytosis	The two types of endocytosis (phagocytosis and pinocytosis) are illustrated.
Endomembrane System	A 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 4	Compare rough and smooth endoplasmic reticulum in an electron micrograph
Endosymbiosis	The process of endosymbiosis is illustrated.
Enegy and Life	Mice are shown on grain stalks.
Energy - ATP cycle	Solar energy is taken in by plants and it is stored in chemical bonds such as ATP.
Energy - cellular	Illustrates three more ways ATP is used to do cellular work.,
Energy - potential and kinetic	A ball on top of a hill represents potential energy when at resting, kinetic when rolling down.
Entropy	The world naturally becomes disorganized
Enzyme sensitivity	Optimum temperature for different bacteria.
Enzyme sensitivity	Enzymes work best under particular conditions of pH and temperature.
Enzyme - activation energy	A reaction that requires an input of energy to start, but ends releasing energy.
Enzyme - active site	The active site site of an enzyme will bind with a substrate.
Enzyme - active site with reactant	The reactant bound to the active site.
Enzyme - active site, step 3	The enzyme-substrate (reactant) complex changes shape and facilitates the reaction.
Enzyme - allosteric	Enzyme repression and activation
Enzyme - binding reactant	The enzyme changes shape when a reactant binds to the active site.
Enzyme : competitive inhibition	The active site on a protein can be blocked by a competitive inhibitor, preventing action.
Enzyme and substrate	Step one in enzyme action.
Enzyme inhibition	Competitive and non-competitive inhibition can control enzyme action
Enzymes - how they work	Basic mechanism of enzyme-substrate binding and catalyzed chemical reaction.
Enzymes - human	Optimum pH of pepsin and trypsin.
Enzyms : biochemical pathway	Hypothetical, membrane bound biochemical pathway
Eukaryotic Cell Drawing	An excellent diagram of an typical eukaryotic animal cell.
Eukaryotic Cell EM	Eukaryotic cell electron micrograph with explanatory diagrams.
Eukaryotic Cell Structures	Second half of Eukaryotic Cell Structures
Eukaryotic Cell Structures	Eukaryotic cell structures and their functions.
Eukaryotic Cell Structures	Structure and function of some structures in the eukaryotic cell
Exocytosis	Electron Micrograph of a releasing vesicle and diagram.
Extracellular matrix	Plasma membrane and extracellular matrix.
Facilitated Diffusion	Facilitated diffuse of glucose through a plasma membrane.
Flagella and cilia	microtubules are the building blocks for flagella and cilia.
Flagella and cilia	microtubules are the building blocks for flagella and cilia.
Glucose - effects	rate of uptake of glucose vs. concentration
Golgi Body, ER and vesicles	Endoplasmic reticulum and Golgi Bodies interact with vesicles.
Golgi complex	see the Golgi complex in an electron micrograph
Golgi complex 1	The Golgi Body is complex, 3-dimensional organelle. Diagram and EM
Golgi complex 5	EM of Golgi Body
Human Karyotype	Human chromosomes in false color,
Light Microscope	The stage of a conventional light microscope.
Lipid bilayer	Lipid bilayer showing the orientation of polar and non-polar ends of the phospholipids.
Membrane - coupled channel	A coupled channel (Na/K) in the membrane, driven by glucose concentration,
Membrane : Lipid bilayer sphere	Lipid bilayer forming a microsphere, similar to a membraned organelle.,
Membrane : Proton Pump	ATP can drive mechanisms to pump protons around, thus modifying the pH of the cytoplasm.
Membrane : Transport	Summary of diffusion, passive transport and active transport.
Membrane Permeability	Selective permeability of the plasma membrane
Membrane Structure	Landscape drawing of a generalized membrane.
Microfilaments	Microtubules, microfilaments and other filaments provide structure inside the cell.
Microscopes - Electron	The two types of electron microscopes are explained.
Microscopes - light	The different types of light microscopes are explained.
Microscopes: types of	Compare the different type of microscopes
Microtubule	Detailed drawing and transmission electron micrograph of a microtubule.
Mitochondria	The structure of the mitochondrion. Drawing and EM.
Mitochondria - EM	Transmission electron micrograph of a long mitochondrion.
Mitosis - Light Microscope	The phases of the cell cylce as seen through the light microscope.
Nuclear Pores	The nuclear membrane has intricate pores in its structure.
Nuclear Pores	The nuclear membrane has intricate pores in its structure.
Nucleus and ER	The movement of mRNA through the nuclear envelope and onto the rough ER
Osmosis	Diagrams of beakers demonstrating hypo- and hypertonic solutions
Phagocytosis	Diagram of phagocytosis.
Phospholipid	Space filling model of a phospholipid with labels.
Pinocytotsis - mediated	Protein mediated pinocytosis
Plant - cell structure	Electron Micrograph of a plant cell
Plant - cell walls	Plant cells have rigid cell walls. Animals do not have cell walls, but both have cell membranes.
Plant - vacuole	Plant cells often have large vacuoles - liquid filled bags in the cytoplasm.
Plant cell structure	A drawing of a generalized plant cell.
Prokaryote cell	A drawing of generalized prokaryote with labels.
Prokaryotes : Bacteria	A spirilli bacterium
Prokaryotes : Bacteria	The bacteria (bacillis) on the head of a pin.
Proteins - embedded	Drawing of a membrane with embedded biomolecules.
Proteins : Polar regions	Polar areas of proteins stick above the non-polar bilayer and hydrophobic protein parts.
Reaction - endergonic	Some reactions need a net energy input. They are called endergonic reactions.
Reaction - Oxidation/Reduction	Oxidation - Reduction reactions involves the rearrangement of electrons.
Reactions - catalyzed	A catalyst is a substance that reduces the activation energy of an exergonic reaction.
Reactions - chemical	Endergonic, Exogonic and Catalyzed reaction curves.
Receptor - Mediated 5	Electron Micrograph of a pinocytosis, possibly mediated by specific proteins.
Red Blood Cells - Electron Microgra	EM of red blood cells.
Red Blood Cells - Light Micrscope	Light micrograph of erythrocytes (red blood cells) in capillaries.
Scale of Visibility	This drawing presents the range of overlap of the light and the electron microscope.
Surface to Volume	The relationship between surface area and volume is crucial to the size and shape of cells.
Surface to Volume Ratio	Applied to a cell, the surface area to volume ratio is important.
Transport Mechanisms	Mechanisms for transport across cell membranes.
Virus EM	Electron Micrograph of a spherical virus.
Viruses - Drawing	Drawings of four types of viruses. HIV is type d.

Active Transport	Watch active transport occur through a membrane
Aerobic Respiration	The Entire Glycolysis and Kreb's Cycle
Membrane Phospholipid Bilayer	Example of a phospholipid bilayer forming microspheres
Features of Cells	prokaryoitc, plant and animals cells are compared
Cytoskeleton of the Cell	description of microtubules, microfilaments and intermediate filaments
Electron Microscope	How an electron microscope works
Energy Flow	Energy flow and material cycling is presented
Eukaryotic Cell Structure	compare a plant cell and an animal cell
Flagella	description of basal body and flagella on the microtubule level
The Light Microscope	details how a light microscope works.
Membrane Proteins	Phospholipid bilayer with embedded proteins
Nucleus and Endomembranes	Shows how the nucleus works with the endomembrane system
Passive Transport	diagrams passive transport of glucose molecules
Active Transport	ATP is used to create a protein that can pump
Binding Saturation	Shows how an a receptor can get saturated.
Biochemical Pathway	A visual explanation of a membrane-bound biochemical pathway.
Co-transport	excellent description symport and antiport transporters and Na ion pump.
Diffusion	vizualization of diffusion and factors effecting diffusion
Diffusion 1	shows diffusion into a cell
Endo- and Exo-cytosis	endocytosis and exocytosis are graphically presented
Energy for Activity	Energy look up for different activities
Enzyme Action	The action of sucrase is explained
Enzymes	Generic description of enzyme action
Facilitated Diffusion	generalized facilitated diffusion is diagrammed and explained
Feedback Inhibition	generalized example of feedback inhibition in a biochemical pathway.
Horizontal Transfer	Transfer of genes between species
Proton Pump	description of the proton pump complex and chemiosmosis
Sodium and Potassium	the sodium and potassium pump is explained