BIOLOGY 1A03 Lecture Notes - Lecture 1: Dehydration Reaction, Sucrose, Cellular Respiration

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BIOLOGY 1A03 Full Course Notes
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BIOLOGY 1A03 Full Course Notes
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Theme 1: content lecture: membrane composed of mainly shorter, unsaturated phospholipids would be more fluid and more permeable. Membranes keep a barrier between living and non-living. Key term: amphipathic: water-loving (head) and water-hating (tail) Facilitated diffusion is a little bit faster than passive diffusion: know real world diffusion application. Find other examples of active transport beyond sodium-potassium pump. Facilitated diffusion vs. active transport: both involve transport proteins, facilitated diffusion is passive and requires no energy, active transport requires energy. Why do we need carbs: synthesis of more complex molecules, structural support, cell surgace signals. Identification tags on cells sot aht cells know what is belonging to which organ and organ system. Cell communication involved carbs sending messages received by different receptor proteins which incites a response: energy source and storage. Carbs are made of carbonyl and hydroxyl groups. Many 5 & 6 carbon sugars form rings in an aqueous solution.

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