Bio 351 plasma membrane extra credit 1


Published on

Published in: Technology, Business
  • Be the first to comment

  • Be the first to like this

No Downloads
Total Views
On Slideshare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide
  • We will learn about the basic structure of the plasma membrane.
  • Before we move on, students should write down what this quote means to them and why this is important. (There is no wrong answer)
  • Questions: 1) Why do you think the plasma membrane is important to the cell? 2) Can you think of a few functions of plasma membrane?
  • Have students draw their own plasma membrane to better understand its structure.
  • Bio 351 plasma membrane extra credit 1

    1. 1. By: Ismael Rodriguez
    2. 2. > The cell is the smallest unit of life classified as a living thing.> It is the structure of all living things on earth.> We will focus on the structure of the plasma membrane of thecell and some of its basic functions.
    3. 3. > The plasma membrane is a thin membrane that surrounds and defines theboundaries of all living cells.> It consists of a double layer, also know as the bilayer, of phospholipids withvarious proteins attached to it.> Cell membranes define and compartmentalize space, regulate the flow ofmaterials, detect external signals, and mediate interactions between cells.
    4. 4. PROTEINS IN THE CELL PLASMAMEMBRANE> In the plasma membrane we have peripheral proteins and integral proteins.> Integral proteins penetrate the bilayer from the extracellular fluid to the cytoplasm.> Peripheral proteins are attached to the integral proteins and don’t cross themembrane.
    5. 5.  The plasma membrane acts as a barrier and separates the outsideof the cell from the inside. It is selectively permeable to ions and inorganic molecules,meaning it controls the movement of molecules in and out of thecell.
    6. 6. >The plasma membrane is mainly composed ofphospholipids.>The polar heads are hydrophilic and the nonpolar tailsare hydrophobic.
    7. 7.  Cholesterol helps maintain the integrity of the membranes and plays animportant role in facilitating cell signaling so that the cells can communicatewith each other.
    8. 8. 1st2nd3rd4th> The break down from the cell to thephospholipids.
    9. 9. QuizTimeA B C DEFFirst: Draw your own plasma membraneSecond: Label Letters A-F, for A, B and C what type of proteins arethey?Third: For letter E state the hydrophobic and hydrophilic sections.Fourth: State where the cytoplasm and the extracellular fluid are
    10. 10. Question 1: Draw the plasma membraneQuestion 2: A. Channel proteinB. Peripheral proteinsC. Integral proteinsD. CholesterolE. PhospholipidF. Phospholipid BilayerQuestion 3: The polar heads are hydrophilic and the nonpolartails are hydrophobicQuestion 4: The extracellular fluid is outside of the cell and thecytoplasm is inside of the cell (Plasma Membrane).
    11. 11. > This website is a great place for students who areinterested in looking at the plasma membrane in moredetail. Information