Focuses on how the lipid bilayer controls the entry and exit of nutrients, wastes, and signals via active and passive transport.
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Cells do not exist in isolation. They communicate via chemical and electrical signals to coordinate activities. Signal transduction pathways allow extracellular signals (first messengers) to induce intracellular changes, often involving second messengers like cyclic AMP (cAMP) or Calcium ions (Ca2+). This cellular communication is the prerequisite for the coordination of tissues and organs. Focuses on how the lipid bilayer controls the
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The book systematically builds from cells to tissues, organs, and systems: