PreparED Study Materials
BIOL 109: Principles of Biology 1
School: Lee University
Number of Notes and Study Guides Available: 4
Notes
Videos
Mixtures vs. Solutions: Decoding Their Chemistry & Interrelationships
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Discover the distinctions between mixtures and solutions in chemistry. Through everyday examples and a visual aid, grasp the relationship between these two concepts. Comprehend how mixtures and solutions are intertwined, yet uniquely different.
Unlocking Transcription: The Role of Promoters in Gene Expression
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Venture into the intricate mechanisms of a eukaryotic cell as we clarify the conditions under which transcription begins. Discover the pivotal role of the promoter and the essential docking of transcription factors.
DNA Polymerase: The Builder of DNA Strands
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Explore the crucial role of DNA polymerase in the DNA replication process. Understand its function in synthesizing new DNA strands. Dissect common misconceptions about this vital enzyme.
Caffeine's Impact on Alertness: Tapping into Fight-or-Flight Mechanism
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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.
Parthenogenesis Unveiled: Egg Development Without Fertilization
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Discover the wonders of parthenogenesis a form of asexual reproduction in our latest educational video. Understand how an egg cell can develop into an embryo without fertilization. Learn the key differences between parthenogenesis and other forms of asexual reproduction like budding and sequential hermaphroditism.
ATP Creation: Comparing Oxidative & Photophosphorylation Mechanisms
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Explore the intricacies of oxidative phosphorylation and photophosphorylation in ATP production. Delve into chemiosmosis, the electron transport chain, and the pivotal role of ATP synthase. Uncover the similarities and contrasts between these cellular energy-generating processes.



