PreparED Study Materials
BI 240: Biology: Function and Development of Organisms
School: Portland State University
Number of Notes and Study Guides Available: 1
Study Guides
Videos
Proprioceptors Exclude: Spindles, Tendons, Discs, or Joints?
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Explore the world of proprioceptors specialized sensory receptors in joints muscles and tendons that help us sense body movement and position. Understand the key types such as muscle spindles tendon organs and joint kinesthetic receptors. Learn why tactile discs are not considered proprioceptors even though they are sensory receptors
Unlocking Bioremediation: How Microbes Help Nature Clean Itself
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Learn how bioremediation works to treat contaminated environments and how microbes can help clean up pollutants. We evaluate multiple scenarios zeroing in on oil-degrading bacteria as a prime example of the process.
Unlocking Mitosis: Cell Division Control and Cyclin Degradation
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Explore the intricate process of mitosis and the crucial role it plays in cellular division. Learn how cell cycle control mechanisms, including cyclin degradation and Maturation Promoting Factor (MPF) activity, ensure accurate and regulated cell division.
Charged Electroscope: Conductor Between Foils' Impact
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Explore the fascinating interaction between electrical energy charge and materials through the lens of an electroscope. Discover how inserting a conductor between its charged foil sheets changes the charge dynamics leading to an attraction between foil and needle. Understand the roles of conductors insulators and charge induction in this intriguing experiment.
The Role of Nerves and Ganglia in the Peripheral Nervous System
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Explore the critical components of the Peripheral Nervous System (PNS), including nerves and ganglia. Understand the distinction between sensory and autonomic ganglia and the composition of nerves' layers. Learn why nerves and ganglia lack the protective meninges found in the CNS and how they facilitate essential signal transmission within the body.
Understanding Nucleic Acids: Nucleotides & Their Roles
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Explore the intricacies of nucleic acids, the macromolecules essential to life. Understand the roles of DNA and RNA, and delve into the structure of nucleotides—the fundamental building blocks of these crucial biomolecules.