Search Results

Showing 1-20 of 56 Resources
  • How We Get Our Skin Color

    How We Get Our Skin Color

    Animation

    (3 min 32 sec) This engaging animation shows how human skin cells produce the pigment melanin, which gives skin its color. 

  • Cancer and Cell Fate in the Intestinal Epithelium

    Cancer and Cell Fate in the Intestinal Epithelium

    Animation

    (2 min 17 sec) Disrupting the normal processes of differentiation and maturation of the intestinal epithelial cells can lead to cancer. Also available in Spanish.

  • Autism and the Structure and Function of Synapses

    Autism and the Structure and Function of Synapses

    Animation

    (2 min 3 sec) Genes associated with autism affect the structure and function of neuronal synapses.

  • Development of the Cerebral Cortex

    Development of the Cerebral Cortex

    Animation

    (1 min 43 sec) Most of the neurons of the cerebral cortex arise from progenitor cells that undergo repeated cell division.

  • Anole Lizards: An Example of Speciation

    Anole Lizards: An Example of Speciation

    Animation

    (2 min 38 sec) This animation features the anole lizards as an example of how a single species can split and multiply into many different species with distinct traits.

  • Malaria: Mosquito Host

    Malaria: Mosquito Host

    Animation

    (3 min 59 sec) A mosquito becomes infected with malaria when it sucks the blood from an infected human. Once inside the mosquito, the parasites reproduce in the gut and accumulate in the salivary glands, ready to infect another human host with the next bite.

  • Malaria: Human Host

    Malaria: Human Host

    Animation

    (4 min 18 sec) When a malaria-carrying mosquito bites a human host, the malaria parasite enters the bloodstream, multiplies in the liver cells, and is then released back into the bloodstream, where it infects and destroys red blood cells.

  • Cloning an Army of T Cells for Immune Defense

    Cloning an Army of T Cells for Immune Defense

    Animation

    (4 min 21 sec) View the animation to see how one type of immune cell—the helper T cell—interprets a message presented at the surface of the cell membrane. The message is an antigen, a protein fragment taken from an invading microbe. A series of events unfolds that results in the production of many clones of the helper T cell. These identical T cells can serve as a brigade forming an essential communication network to activate B cells, which make antibodies that will specifically attack the activating antigen.

  • Lactose Digestion in Infants

    Lactose Digestion in Infants

    Animation

    (53 sec) The lactase enzyme is produced in the small intestine of infants. It digests lactose by breaking it into glucose and galactose.

  • Dengue Virus Enters a Cell

    Dengue Virus Enters a Cell

    Animation

    (1 min 33 sec) Infection begins when the dengue virus uses receptors on an immune cell's surface to gain entry and release its genome.

  • Structure of Dengue Virus

    Structure of Dengue Virus

    Animation

    (1 min 3 sec) The dengue virus's outer envelope proteins form symmetrical units and overlay the lipid envelope, capsid, and the RNA genome.

  • Dengue Fever Re-Emergence in the Americas

    Dengue Fever Re-Emergence in the Americas

    Animation

    (24 sec) Since the 1960s dengue fever has spread to many countries and total case numbers have exploded.

  • Dengue Virus Life Cycle

    Dengue Virus Life Cycle

    Animation

    (4 min 12 sec) Dengue virus has sophisticated mechanisms for entering a cell, for replicating its RNA genome, and for translating proteins.

  • Viral Geometry and Structural Diversity

    Viral Geometry and Structural Diversity

    Animation

    The geometric structures of viruses are beautiful and can be used, along with genomic information, to identify them.

  • Running a Virochip Experiment

    Running a Virochip Experiment

    Animation

    (2 min 15 sec) A sample is put on a Virochip microarray, and results are compared to databases of all known viral sequences.

  • Lightning-strike cabal acts like a Taser

    Lightning-strike cabal acts like a Taser

    Animation

    (2 min 9 sec) Some cone snail toxins chemically hyperactivate neurons and immobilize prey, much like a Taser.

  • Motor cabal toxins block motor neuron synapses

    Motor cabal toxins block motor neuron synapses

    Animation

    (3 min 28 sec) Multiple cone snail toxins attack different molecules of the nervous system and cause paralysis.

  • Prialt blocks motor synapse in fish

    Prialt blocks motor synapse in fish

    Animation

    (2 min 31 sec) Prialt, a drug derived from cone snail venom, paralyzes fish by blocking calcium channels at a motor synapse.

  • Prialt blocks pain signaling in mice

    Prialt blocks pain signaling in mice

    Animation

    (2 min 58 sec) Prialt does not block the mammalian motor synapse, but blocks the pain pathway in the spinal cord.

  • Molecular basis of late LTP (long-term memory)

    Molecular basis of late LTP (long-term memory)

    Animation

    (57 sec) Late LTP (long-term memory) involves dopamine activation of CREB to support new synaptic growth.

Refine Results

Narrow your choices by selecting areas below.

Topics

Resource Type

Extended Filters