PreparED Study Materials
Notes
Study Guides
Videos
Balancing Act: How Negative Feedback Loops Maintain Harmony
Want To Learn More? To watch the entire video and ALL of the videos in the series:
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.
What Defines Anions? Electrons vs. Protons Unveiled
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the fundamental characteristics of anions and decipher the statements that define them. Understand how electron transfer leads to ion formation, creating atoms with net electrical charges. Learn about the key property that sets anions apart from other atomic entities, providing insights into atomic structure and charge.
Decoding Controlled Experiments: Unraveling the Role of Control Groups
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Understand the essence of controlled experiments and the significance of control groups. Unpack the common misconceptions associated with experimental design. Grasp the key factors that make an experiment truly controlled.
DNA Replication: The Semiconservative Explanation
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the concept of semiconservative DNA replication, where each new DNA molecule retains one original strand. Understand the significance of this mechanism in ensuring accurate genetic information transfer across cell generations.
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:
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.
Unlocking Transcription: The Role of Promoters in Gene Expression
Want To Learn More? To watch the entire video and ALL of the videos in the series:
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.