Log on:
Powered by Elgg



Study Biology with these Free Learning Resources

Atoms and Molecules: Chemical Symbol Quiz
See how well you remember the chemical symbols with this quiz. At a button-click you get ten more names of elements from the periodic table, each with four choices of chemical symbols for you to choose. Can you get them all?
Keywords: Ac, Al, Aluminum, As, Atoms and Molecules, Atoms and Molecules: Chemical Symbol Quiz, Au, Ba, Berkelium, Bh, Bi, Biology, Bk, Ca, Ce, Cerium, Cf, Chemical, Chemical Symbol Quiz, Cs, Cu, Db, Dubnium, Er, Es, Eu, Europium, H, He, Hf, Hydrogen, Ir, Kr, La, Lanthanum, Lawrencium, Lr, Mg, Na, Ne, Ni, P, Pb, Po, Pu, Quiz, Ra, Radium, Radon, Rb, Rn, Sr, Symbol, Tc, Tl, W, Zn
Atoms and Molecules: My Chemical Formula Flashcards
Learn the chemical formulas of organic and inorganic molecules with these flashcards. You can even study while you play a concentration game, too!
Keywords: Ammonia, Ammonium Carbonate, Ammonium Chloride, Ammonium Nitrate, Ammonium Sulphate, Atoms and Molecules, Atoms and Molecules: My Chemical Formula Flashcards, Barium Carbonate, Biology, Calcium Carbonate, Calcium Nitrate, Carbon Acid, Carbon Dioxide, Carbon Disulphide, Carbon Monoxide, Chemical, Cyanogen, Flashcards, Formula, Hydrazine, Magnesium Carbonate, My Chemical Formula Flashcards, Nickel Carbonyl, Nitric Acid, Nitrogen Monoxide, Nitrous Acid, Nitrous Oxide, Phosgene, Potash, Saltpeter, Silver Nitrate, Sodium Amide, Sodium Bicarbonate
Atoms and Molecules: Atom Model
An atom is the smallest particle of an element that contains the chemical properties of that element. Learn about atoms and their components (protons, neutrons, and electrons) in this program.
Keywords: AMU, amu, Atom Model, atomic, Atomic mass, Atomic number, Atoms, Atoms and Molecules, Atoms and Molecules: Atom Model, Biology, charge, Electrons, element, energy levels, Molecules, negative, negative charge, neutral, neutral charge, Neutrons, Nucleus, particle, positive, positive charge, Protons, Science, shells, subatomic, subatomic particle
Atoms and Molecules: Chemical Formula Quiz: Organic Compounds
How well do you know the chemical formulas of organic molecules? Bond with this fun quiz -- ten questions randomly selected from our apothecary!
Keywords: Acetone, Acetylsalicylic Acid, Acridine, Apartic Acid, Ascorbic Acid, Asparagine, Atoms and Molecules, Atoms and Molecules: Chemical Formula Quiz: Organic Compounds, Atrophine, Barbituric Acid, Benzene, Biology, Butane, Butanol, Carbolic Acid, Carotene, Cellulose, chemical formula, Chemical Formula Quiz, Cholesterol, Deoxyribose, Ethene, Ferrocene, Glucose, Glycerol, Histamine, Hydrocortisone, Hydrogen Cyanide, Lactic Acid, Leucine, Lycopene, Lysine, Mallic Acid, Methane, Morphine, Nitroglycerine, Octane, Organic Compounds, Pentane, Progesterone, quiz, Ribose, Strychnine, Sucrose, Toluene, Valine, Vinyl Chloride
Atoms and Molecules: Chemical Properties of Water
Water has many unique characteristics that make it ideal for nurturing life. Learn about them with this tutorial.
Keywords: anions, Atoms, Atoms and Molecules, Atoms and Molecules: Chemical Properties of Water, Biology, cations, Chemical Properties, Chemical Properties of Water, electrostatic, electrostatic bond, freeze, freezing point, H2O, hydrogen, hydrogen bonds, ice, ionic compounds, ions, liquid water, liquidity, Molecules, natural solvent, polar molecule, reactions, stable temperature, Water, water molecules, water vapor
Atoms and Molecules: Chemical Symbol Lookup Table
This lookup displays all the elements in the periodic table, sorted by symbol. Also included are the element name, atomic mass, atomic number, and electron configuration. This is a must for anyone learning the periodic table.
Keywords: Actinium, Aluminum, Americium, Antimony, Argon, Arsenic, Astatine, atom, Atomic Mass, Atomic Number, atoms, Atoms and Molecules, Atoms and Molecules: My Chemical Elements, Barium, Berkelium, Beryllium, Biology, biology, Bismuth, Bohrium, Boron, Bromine, Cadmium, Calcium, Californium, Carbon, Cerium, Cesium, chemical elements, chemical symbol, Chemical Symbol Lookup Table, Chemistry, chemistry, Chlorine, Chromium, Cobalt, Copper, Curium, Darmstadium, Dubnium, Dysprosium, Eisteinium, Electron Configuration, Element, element flash cards, Erbium, Europium, Fermium, flash cards, flashcards, Fluorine, Francium, Gadolinium, Gallium, Germanium, Gold, Hafnium, Hassium, Helium, Holmium, Hydrogen, Indium, Iodine, Iridium, Iron, Krypton, Lanthanum, Lawrencium, Lead, Lithium, Lutetium, Magnesium, Manganese, Meitenerium, Mendlevium, Mercury, molecules, Molybdenum, Neodymium, Neon, Neptunium, Nickel, Niobium, Nitrogen, Nobeblium, Osmium, Oxygen, Palladium, Phosphorus, Platinum, Plutonium, Polonium, Potassium, Praseodymium, Promethium, Protactinium, radium, Radon, Rhenium, Rhodium, Roentgenium, Rubidium, Ruthenium, Rutherfordium, Samarium, Scandium, science, Seaborgium, Selenium, Silicon, Silver, Sodium, Strontium, Sulfur, symbol, table, Tantalum, Technetium, Tellurium, Terbium, Thallium, Thorium, Thulium, Tin, Titanium, Tungsten, Ununbium, Ununpentium, Ununquadium, Ununtrium, Uranium, vanadium, Xenon, Ytterbium, Yttrium, Zinc, Zirconium
Atoms and Molecules: Electron Orbitals
Electron configuration in an atom is organized into orbitals and differently shaped subshells. Learn about the s subshell, p subshell, d subshell, and f subshell (and more) in this interactive tour.
Keywords: Atoms, Atoms and Molecules, Atoms and Molecules: Electron Orbitals, Biology, circular path, d shell, d Subshell, Electron, Electron Orbitals, electrons, energy levels, f shell, f Subshell, Molecules, nucleus, Orbitals, p shell, p Subshell, particles, s shell, s Subshell, shells, subatomic, subatomic particles, subshell
Atoms and Molecules: My Chemical Elements Flashcards
Learn the symbol, electron shell configuration, atomic mass, and other important details for each chemical element with this interactive flashcard program.
Keywords: Actinium, Aluminum, Americium, Antimony, Argon, Arsenic, Astatine, Atoms and Molecules, Atoms and Molecules: My Chemical Elements, Barium, Berkelium, Beryllium, Biology, Bismuth, Bohrium, Boron, Bromine, Cadmium, Calcium, Californium, Carbon, Cerium, Cesium, chemical elements, Chemistry, Chlorine, Chromium, Cobalt, Copper, Curium, Darmstadium, Dubnium, Dysprosium, Eisteinium, element flash cards, Erbium, Europium, Fermium, flash cards, flashcards, Fluorine, Francium, Gadolinium, Gallium, Germanium, Gold, Hafnium, Hassium, Helium, Holmium, Hydrogen, Indium, Iodine, Iridium, Iron, Krypton, Lanthanum, Lawrencium, Lead, Lithium, Lutetium, Magnesium, Manganese, Meitenerium, Mendlevium, Mercury, Molybdenum, Neodymium, Neon, Neptunium, Nickel, Niobium, Nitrogen, Nobeblium, Osmium, Oxygen, Palladium, Phosphorus, Platinum, Plutonium, Polonium, Potassium, Praseodymium, Promethium, Protactinium, radium, Radon, Rhenium, Rhodium, Roentgenium, Rubidium, Ruthenium, Rutherfordium, Samarium, Scandium, science, Seaborgium, Selenium, Silicon, Silver, Sodium, Strontium, Sulfur, Tantalum, Technetium, Tellurium, Terbium, Thallium, Thorium, Thulium, Tin, Titanium, Tungsten, Ununbium, Ununpentium, Ununquadium, Ununtrium, Uranium, vanadium, Xenon, Ytterbium, Yttrium, Zinc, Zirconium
Atoms and Molecules: Periodic Table
Examine chemical symbols, atomic masses, electronegativity, electron shell configuration, and more in this printable interactive periodic table of the elements. We have all the elements discovered thus far, and instructions on how to read the table.
Keywords: Atomic Mass, Atomic Number, atoms, Atoms, Atoms and Molecules, Atoms and Molecules: Periodic Table, Biology, chemical symbol, electron configuration, Electron Configuration, electron negativity, Element, Molecules, molecules, Periodic Table, science, symbol, table
Atoms and Molecules: Using The Periodic Table
Ever wonder how to actually use the periodic table of elements? Get a detailed overview of the various sections on the periodic table including electron shell configuration, atomic mass, chemical symbols, electronegativity, and more with this tutorial.
Keywords: atom, atomic mass, Atomic Mass, atomic number, Atomic Number, atoms, Atoms and Molecules, biology, Biology, chemical symbol, chemistry, electron configuration, Electron Configuration, electronnegativity, Element, group, how to read the periodic table, metals, molecules, non-metals, period, science, symbol, table, transition metals, type, using periodic table
Cell Membranes: Osmosis in a Plant Cell
In biological terms, osmosis is the diffusion of water though a membrane to a region with a lower concentration of water. Do you understand how osmosis works in a plant cell? Take this interactive tour to help you master the concept and terminology.
Keywords: Biology, Cell, Cell Membranes, Cell Membranes: Osmosis in a Plant Cell, concentration, diffusion, Hypertonic, Hypotonic, ion, Isotonic, membrane, Osmosis, Osmosis in a Plant Cell, Osmotic Pressure, permeable, permeable membrane, Plant Cell, proteins, Selectively Permeable, solute, Tonicity, water, water molecule
Cell Membranes: Active Transport
Active transport is the mediated process of moving molecules and other substances across membranes. Use this tutorial to learn about active transport, including such key terms as adenosine triphosphate (ATP), carrier mediated transport, and concentration gradients.
Keywords: Active Transport, adenosine triphosphate, antiporter, ATP, ATP energy, Biology, Cell Membranes, Cell Membranes: Active Transport, concentration gradient, diffusion, glucose symporter, Primary active transport, Secondary active transport, sodium ions, sodium-calcium exchanger, sodium-potassium pump
Cell Membranes: Biology Quiz: Cell Membranes
Think you know all about cell membranes? Use this self-quiz to make sure you remember active transport, plasma membranes, lipid bilayer, and more.
Keywords: Active Transport, Adenosine Triphosphate, Antiporter, ATP, Biology, Biology Quiz, Biology Quiz: Cell Membranes, Carrier Proteins, Cell, Cell Membranes, Cell Membranes: Biology Quiz: Cell Membranes, Cell Wall, Concentration Gradient, Diffusion, Electrochemical Gradient, Endocytosis, Equilibrium, Exocytosis, Facilitated Diffusion, Filtration, Glucose Symporter, Hydrophilic, Hydrophobic, Hypertonic, Hypotonic, Intergral Membrane Proteins, Lipid Bilayer, Osmosis, Osmotic Pressure, P-face, Passive Transport, Phagocytosis, Phospholipid, Pinocytosis, Primary Active Transport, Protoplasmic Face, Receptor Proteins, Receptor-mediated Endocytosis, Secondary Active Transport, Selective Permeability, Tonicity, Transport Proteins, Turgor Pressure, Vesicle Docking, Vesicle Fusion, Vesicle Priming, Vesicle Tethering, Vesicle Trafficking
Cell Membranes: Carrier Proteins
Carrier proteins help specific molecules or ions pass through the plasma membrane. Do you know how carrier proteins work? This interactive tutorial will help you to absorb this key concept.
Keywords: Active Transport, ADP+P, Biology, Carrier Proteins, Cell Membranes, Cell Membranes: Carrier Proteins, Concentration Gradient, Exterior of Cell, Facilitated Diffusion, ion, K, molecules, Na, Na - K Pump, Passive Transport, Pump, Sodium Potassium Pump
Cell Membranes: Diffusion Through a Membrane
Diffusion is the net movement of particles (atoms, molecules, or ions) from a highly concentratd region to a region of low concentration. Understanding diffusion through a membrane is a key biology concept. Take this interactive tour to help you master the process and terminology.
Keywords: active, Atoms, Biology, cell, Cell Membranes, Cell Membranes: Diffusion Through a Membrane, Concentration gradient, Diffusion, Diffusion Through a Membrane, Equilibrium, gases, high Concentration, Ions, Low Concentration, Membrane, Molecules, Particles, passive, plasma membrane, Random Movement, solutions
Cell Membranes: Endocytosis
Endocytosis is a cellular process where cells absorb molecules or substances from outside the cell by engulfing it with the cell membrane. This tutorial explains the cellular processes involved in endocytosis, including phagocytosis, pinocytosis, and receptor-mediated endocytosis.
Keywords: Biology, Cell Membranes, Cell Membranes: Endocytosis, Endocytosis, exocytosis, hydrophobic plasma membrane, Phagocytosis, phagosome, Pinocytosis, receptor proteins, Receptor-Mediated Endocytosis, vacuole
Cell Membranes: Exocytosis
Exocytosis is the cellular process by which cells excrete waste products or chemical transmitters. Learn about this process in this tutorial.
Keywords: Biology, Cell Membranes, Cell Membranes: Exocytosis, cytoplasm, endocytosis, Exocytosis, plasma membrane, Vesicle Docking, Vesicle Fusion, Vesicle Priming, Vesicle Tethering, Vesicle Trafficking, waste products
Cell Membranes: Lipid Bilayer
The lipid bilayer is an organic compound that is insoluble in water but soluble in nonpolar solvents, providing the basic impermeable structure of the membrane. Explore the process, structure, and function of an plasma membrane's lipid bilayer with this interactive tutorial.
Keywords: Biology, Cell Membranes, Cell Membranes: Lipid Bilayer, E-Face, External Face, Fats, Hydrophilic, Hydrophobic, insoluble, Lipid, Lipid Bilayer, Lipid Structure, nonpolar, nonpolar solvent, P-Face, Phospholipids, Plasma membrane, Proteins, Protoplasmic Face, soluble
Cell Membranes: Membrane Proteins
How much do you know about the three types of membrane proteins? Find out about integral proteins, transmembrane proteins, and peripheral proteins with this interactive tutorial.
Keywords: Biology, Cell Membranes, Cell Membranes: Membrane Proteins, Hydrophilic, Hydrophobic, Integral, Lipid Bilayer, Membrane, Membrane Proteins, Peripheral, Proteins, Transmembrane, Transmembrane Protein
Cell Membranes: My Cell Membranes
Use these flash cards to practice your grasp of endocytosis, exocytosis, turgor pressure, and dozens of other biology terms.
Keywords: Active Transport, Adenosine Triphosphate, Antiporter, ATP, Biology, Carrier Proteins, Cell, Cell Membranes, Cell Membranes: My Cell Membranes, Cell Wall, Concentration Gradient, Diffusion, Electrochemical Gradient, Endocytosis, Equilibrium, Exocytosis, External Face, Facilitated Diffusion, Filtration, Glucose Symporter, Hydrophilic, Hydrophobic, Hypertonic, Integral Membrane Proteins, Isotonic, Lipid Bilayer, My Cell Membranes, Osmosis, Osmotic Pressure, Passive Transport, Peripheral Membrane Proteins, Phagocytosis, Phospholipid, Pinocytosis, Primary Active Transport, Protoplasmic Face, Receptor Proteins, Receptor-mediated Endocytosis, Secondary Active Transport, Selective Permeability, Tonicity, Transport Proteins, Turgor Pressure, Vesicle Docking, Vesicle Fusion, Vesicle Priming, Vesicle Tethering, Vesicle Trafficking
Cell Membranes: Osmosis in an Animal Cell
In biological terms, osmosis is the diffusion of water though a membrane to a region with a lower concentration of water. Do you understand how osmosis works in an animal cell? Take this interactive tour to help you master the concept and terminology.
Keywords: Animal Cell, Biology, Cell, Cell Membranes, Cell Membranes: Osmosis in an Animal Cell, Diffusion, Hypertonic, Hypotonic, Membrane, Osmosis, Osmosis in an Animal Cell, Osmotic, Osmotic Pressure, Permeable, Permeable membrane, Selectively Permeable, Tonicity
Cell Membranes: Passive Transport
Passive transport is the cellular process of moving molecules and other substances across membranes. Learn about diffusion, facilitated diffusion, filtration, and osmosis in this Passive Transport tutorial.
Keywords: Biology, cell membrane, Cell Membranes, Cell Membranes: Passive Transport, concentration gradient, Diffusion, Facilitated Diffusion, Molecules, Osmosis, Osmosis in a Plant Cell, Osmosis in an Animal Cell, Passive Transport, permeability, Solute, transport proteins
Cell Membranes: Plasma Membrane - Animal Cell
The plasma membrane is a selectively permeable membrane made up of a lipid bilayer and proteins surrounding the cell. Explore the process, structure, and function of an animal cell's plasma membrane with this interactive tutorial.
Keywords: Animal Cell, Biology, Cell, Cell Membranes, Cell Membranes: Plasma Membrane - Animal Cell, E-Face, External face, Hydrophilic, Hydrophobic, Impermeable Structure, Insoluble, Lipid Bilayer, Membrane Proteins, P-Face, Plasma Membrane, Plasma Membrane - Animal Cell, Proteins, Protoplasmic Face, Soluble
Cell Membranes: Plasma Membrane - Plant Cells
The plasma membrane is a selectively permeable membrane made up of a lipid bilayer and proteins surrounding the cell but inside the cell wall. Explore the process, structure, and function of a plant cell's plasma membrane with this interactive tutorial.
Keywords: Bacteria, Biology, Cell, Cell Membranes, Cell Membranes: Plasma Membrane - Plant Cells, Cell Wall, E-Face, External Face, Hydrophilic, Hydrophobic, Lipid Bilayer, Membrane Proteins, P-Face, Plant Cells, Plasma Membrane, Plasma Membrane - Plant Cells, Proteins, Protists, Protoplasmic Face
Cells: Plant Cell Cycle
Use this tutorial to explore the growth and division processes for plant cells -- interphase, mitosis, prophase, metaphase, anaphase, telophase, and cytokinesis.
Keywords: Anaphase, Biology, Cells, Cells: Plant Cell Cycle, Centrosomes, Chromosomes, Cytokinesis, DNA, G1, G2, Interphase, Metaphase, Mitosis, Mitotic Cycles, Plant Cell Cycle, Prophase, S, Telophase
Cells: Animal Cell Cycle
Use this tutorial to explore the growth and division processes for animal cells.
Keywords: Anaphase, Animal Cell, Animal Cell Cycle, Biology, Cells, Cells: Animal Cell Cycle, centromeres, chromatids, chromosomes, Cytokinesis, cytoplasm, DNA, G1, G2, Interphase, Metaphase, metaphase plate, Mitosis, mitotic spindle, nuclear division, nuclear membrane, nuclei, Prophase, S, spindle fibers, synthesized, Telophase
Cells: Biology Quiz: Cells
Take this self-quiz to review cell terms and concepts like mitochondria, meiosis, and mitosis.
Keywords: Anaphase, Anaphase II, Animal Cell, Biology, Capsule, Cell Membrane, Cell Wall, Cells, Cells: Biology Quiz: Cells, Choroplast, Cytokinesis, Cytokinesis II, Cytoplasm, Diploid, Endoplasmic Reticulum, Fimbrium, Flagella, G2 Phase, Golgi Complex, Haploid, Interkinesis, Interphase, Lysosomes, Meiosis, Meiosis I, Meiosis II, Metaphase, Metaphase II, Mitosis, Nucleolus, Nucleus, Peroxisomes, Phagocytes, Pilus, Plant Cell, Prokaryote, Prophase, Prophase II, Quiz, Ribosomes, S Phase, Telophase, Telophase II, Vacuoles
Cells: Inside a Plant Cell
Examine the structures and function of the plant cell with this interactive illustration.
Keywords: Biology, Cell, cell wall, Cells, Cells: Inside a Plant Cell, chloroplast, cytoplasm, endoplasmic reticulum,