PreparED Study Materials
BIOL 101: Introduction to Biology A
School: University of Pennsylvania
Number of Notes and Study Guides Available: 140
Notes
Videos
Unveiling Life's Origin: Oparin-Haldane Hypothesis Demystified
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the captivating Oparin-Haldane hypothesis, detailing the three key steps in the journey from non-life to life. Witness the emergence of organic molecules through non-biological processes, the formation of complex molecules, and the ultimate leap to self-replicating DNA. Join us on this scientific exploration of life's origins.
Caffeine's Impact on Alertness: Tapping into Fight-or-Flight Mechanism
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the body's fight-or-flight response and its link to caffeine's effects. Learn how the interruption of cAMP phosphodiesterase leads to prolonged alertness and why caffeine can result in sleeplessness.
Digestion Unveiled: Fats to Fatty Acids & Proteins to Amino Acids
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Muscle Fatigue Explained: The Impact of Lactic Acid & ATP Depletion.
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the underlying causes of muscle fatigue and the crucial role of lactic acid. Understand the impact of ATP depletion and anaerobic metabolism on muscle performance. Gain insights into planning effective exercise and recovery strategies.
Invertebrate Evolution: Are Beetles Monophyletic?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the Evolutionary History of Invertebrates: Are Beetles Related? Discover the intricate web of invertebrate evolution, dating back over 500 million years, and why beetles and their invertebrate counterparts do not share a common ancestry.
Why Lower Trophic Levels Reduce Toxin Exposure: A Biological Insight
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Unpack the process of biological magnification in the food chain and learn why consuming foods from lower trophic levels minimizes toxin exposure. Grasp the implications of human-induced pollutants and the benefits of dietary diversity.