PreparED Study Materials
Videos
Understanding Methane (CH4): Its Structure, Uses, and Environmental Im
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the properties and significance of methane (CH4), from its atomic structure to its pivotal role in industry and the environment. Uncover how carbon and hydrogen atoms form covalent bonds, making methane a key component of natural gas.
Na+ Channels: Open at Resting Potential or Threshold?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
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
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
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.
Anatomy Basics: Tissues, Organs, and Organ Systems Explained
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the definitions of tissue, organ, and organ system. Understand the distinctions and interconnectedness between these components. Get an overview of the human body's eleven major organ systems and their functions.
Phylogenetic Systematics: Unraveling Life's Connections
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the intricate world of phylogenetic systematics, a method revealing life's diverse connections. Dive into the tree-like structure representing evolutionary relationships. Unravel how shared traits help sketch the ever-evolving story of life
Proprioceptors Exclude: Spindles, Tendons, Discs, or Joints?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the world of proprioceptors specialized sensory receptors in joints muscles and tendons that help us sense body movement and position. Understand the key types such as muscle spindles tendon organs and joint kinesthetic receptors. Learn why tactile discs are not considered proprioceptors even though they are sensory receptors











