PreparED Study Materials
Notes
Videos
Osteogenic Cell Differentiation & Unique Origins of Osteoclasts"
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Discover the complex roles of osteogenic cells and their differentiation into bone-related cell types like osteoblasts, osteoclasts, and more. This video will also reveal the surprising origin of osteoclasts, setting them apart from their bone cell counterparts.
Deciphering hPL: Its Role in Preparing the Breasts for Lactation
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Explore the role of human placental lactogen (hPL) in this informative video. Learn how hPL prepares the breasts for lactation, debunking other hypotheses about its functions in nourishing the placenta or regulating the menstrual cycle. Discover the primary function of this remarkable placental hormone.
Nucleotide Replication: Prokaryotes vs. Eukaryotes Rate Comparison
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This data-driven video examines the difference in nucleotide replication rates between prokaryotes and eukaryotes, providing insights into the factors affecting their speed. It concludes that prokaryotes outpace eukaryotes, replicating nucleotides approximately ten times faster, and explores the contributing factors behind this difference.
Balancing Act: How Negative Feedback Loops Maintain Harmony
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Discover the concept of negative feedback loops in biological systems, where balance is maintained by counteracting changes. Explore the four key components: Stimulus, Sensor, Control Center, and Effector, through examples like blood sugar regulation. Uncover how these loops play a crucial role in keeping our body systems in harmony.
How the Diaphragm and Scalene Muscles Control Your Breathing Explained
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Unveil the essential muscles that make breathing possible in this video. Learn why the diaphragm and scalene are crucial players and why other muscles like the trapezius and semispinalis aren't involved in respiration.
Oceans' Influence on the Biosphere: A Vital Connection
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Explore the profound impact of oceans on the biosphere in this video. Discover how oceans contribute to oxygen production, carbon dioxide absorption, and climate moderation, while also uncovering their limitations in regulating the pH of freshwater biomes and terrestrial groundwater.