BIO 198: Principles of Biology

School: Grand Valley State University

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Videos

Decoding Cholesterol's Influence on Cell Membrane Function & Fluidity

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Discover how cholesterol, a substance found in our body and certain foods, significantly impacts cell membrane fluidity. Learn its varying effects under different temperatures and in diverse cellular lipid compositions. Uncover its indispensable role in nerve signal transmission and cellular health.

Oparin's Heterotroph Hypothesis: Origins of First Organisms

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Explore the groundbreaking heterotroph hypothesis by Alexander Oparin. This video outlines how the first organisms likely consumed pre-existing organic matter reshaping how we think about the origins of life and evolution

Simplifying Phylogenetic Trees: Parsimony & Evolutionary Change

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Explore the application of parsimony in constructing phylogenetic trees, emphasizing simplicity in scientific explanations and its relation to evolutionary changes. Learn about various options for tree construction and the core concept of choosing the most parsimonious representation

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.

Chemical Bonds Explored: From Basics to Ammonia's Polar Covalent Bondi

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Discover the captivating world of chemical bonds, from the basic definition to types and specific examples like ammonia. Delve into ionic, covalent, and hydrogen bonds and their distinct characteristics. Understand the unequal electron sharing in ammonia leading to polar covalent bonds.