PSY320H1 Chapter Notes - Chapter 3: Pseudopodia, Red Blood Cell, Resting Potential
Document Summary
Lecture 2- chapter 3: pages 66-72 and 89-100. Homeostasis at the level of the tissue, organ, organ system, and organism reflects the combined and coordinated actions of many cells. 2 types of cells : sex cells ( sperm for males, and oocytes for females) and somatic. Cells (all other cells in the human body) The extracellular fluid in most tissues is called interstitial fluid. A plasma membrane separates the cell content or cytoplasm from the extracellular fluid. The cytoplasm can itself be subdivided into: the cytosol, a liquid. 3. 1 the plasma membrane separates the cell from its surrounding environment and performs various functions. The outer boundary of the cell is the plasma membrane, also called the cell membrane. Functions include: physical isolation: separates the cell from the surrounding extracellular fluid. It also contains a variety of receptors that allow the cell to recognize and respond to specific molecules in its environment.
