Manual Lab 1 Notes

Levels of Organization - Review

  • Atoms

  • Molecules

  • Macromolecules

  • Organelles

  • Cell

  • Tissue

  • Organ

  • System

  • Organism

The Cell

Basic unit of structure and function of the body

  • Highly organized molecular factories

  • Great diversity

  • Organ physiology derived from complex functions of the cell.

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THREE principle parts of the cell

  1. Cell (plasma) Membrane

  • Gives it form

  • Is selectively permeable

  • Separates cell’s internal structures from the extracellular fluid (ECF)

  • Participates in cellular communication

  1. Cytoplasm

  • Watery content of the Cell

Chemistry Overview

Why is Chemistry important for learning physiology

Read:

  • Chemistry Overview

  • Textbook Chemistry Review

Homeostasis

Homeostasis is the constancy of internal environment

  • The main purpose of our physiological mechanisms is to maintain homeostasis.

  • This involves regulating variables such as temperature, pH, and electrolyte levels to ensure optimal functioning of cells and systems within the body.

  • Is often accomplished by negative feedback loops.