PreparED Study Materials
Videos
Pathogens: Disease-Causing Microbes & Prevention
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Unlock the world of pathogens, the microorganisms causing diseases. Grasp how they invade, colonize, and adversely affect host organisms. Learn about prevention strategies to mitigate their harmful impacts.
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.
Pharyngeal Slits: The Feeding Marvel in Lancelets and Tunicates
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the vital roles of pharyngeal slits in lancelets and tunicates. Learn how these clefts aid in filter-feeding, capturing food particles, and evolve through different life stages.
Gymnosperms vs. Angiosperms: Dissecting Their Shared Traits & Differen
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the distinctions and similarities between gymnosperms and angiosperms. Delve into their structural features, seed development processes, and pollen grain formation. Uncover why only angiosperms possess ovaries.
Photosynthesis Uncovered: Which Step is Directly Powered by Light?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Unpack the intricate processes within photosynthesis and identify which is most directly powered by light energy. Discover the critical role of chlorophyll in capturing solar power.
Why Flamingos Are Pink: The Role of Diet in Coloration
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Uncover why flamingos, genetically predisposed to white feathers, sport a pink hue. Dismissing influences like weather and DNA mutations, the mystery unravels with diet: the intake of carotenoids from their food which overrides their genetic blueprint
