PreparED Study Materials
BIOL 4331: Developmental Biology
School: Southern Methodist University
Number of Notes and Study Guides Available: 0
Videos
Na+ Channels: Open at Resting Potential or Threshold?
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Discover the mechanics of voltage-gated Na+ channels and their role in neuron activity. This video breaks down key neuronal terms like resting potential and threshold to explain precisely when these channels open. You'll come away understanding that voltage-gated Na+ channels open at the threshold state initiating an action potential.
How Natural Selection Led to the Emergence of MRSA in a Community
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Explore the mysterious rise of MRSA following a battle against S. aureus with methicillin. Delve into various theories, and uncover the power of natural selection in shaping bacterial communities.
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Understanding Neuron Signals: Role of Myelination & Fiber Diameter.
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Grasp the fundamentals of how neurons transmit electrical signals through action potentials. Understand the crucial role of myelination and fiber diameter in efficient nerve impulse conduction. Dive into the comparisons of different nerve fiber types and their properties.
First Video In Our Three Part Series for Midterms
Intro to Biology: Cell Structure, Function & Evolution Unraveled
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Explore the intricate world of cells, from the simplicity of prokaryotes to the advanced complexity of eukaryotes. Dive into cell structures and their functions, revealing the evolutionary journey of cellular design. Understand key processes like mitosis, meiosis, and the cell cycle, and how they underpin life itself. This video offers a captivating look at the marvels of cellular evolution, providing clarity on their roles in sustaining and diversifying life on Earth.
Unlocking Bioremediation: How Microbes Help Nature Clean Itself
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Learn how bioremediation works to treat contaminated environments and how microbes can help clean up pollutants. We evaluate multiple scenarios zeroing in on oil-degrading bacteria as a prime example of the process.


















