PreparED Study Materials
BIOL 103: Nutrition
School: Seattle Central Community College
Number of Notes and Study Guides Available: 1
Notes
Videos
Osteocyte Nourishment: The Role of the Lacunar-Canalicular Network in
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Uncover the fascinating system that nourishes osteocytes in our bones: the osteocyte lacunar-canalicular network. Learn how canaliculi connect these mature bone cells to vital nutrients, ensuring their health even at significant distances from blood vessels.
Aldosterone & Target Cells: Intracellular Receptor Insights
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Learn why lipid-soluble signaling molecules like aldosterone only impact specific target cells. We discuss four theories and reveal that intracellular receptors present only in target cells are the key. This video demystifies the unique mechanism behind aldosterone's selective action.
What Process Involves Ion-Driven Molecule Transport in Opposite Direct
Want To Learn More? To watch the entire video and ALL of the videos in the series:
In cell biology, the "driving ion" is a pivotal concept. It refers to ions moving from areas of high to low concentration, generating energy for various cellular transport processes. This gradient is crucial for nutrient uptake and waste elimination. Multiple processes involve a driving ion, including facilitated diffusion, symport transport, primary active transport pumps, and cotransport. Facilitated diffusion aids molecule movement along their gradient, while symport moves multiple substance
Oparin's Heterotroph Hypothesis: Origins of First Organisms
Want To Learn More? To watch the entire video and ALL of the videos in the series:
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
Endomembrane System in Cell Biology: Spotting the Outlier
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the intricate components of the endomembrane system within a cell. Identify which structures belong to this system and which do not, with a specific focus on the unique role of the chloroplast.
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.