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Plasma Membrane Notes
CHARACTERISTICS: Maintains homeostasis (balance with environment) Selective permeability – allows some molecules into the cell while keeping others out.
Example of selective permeability – screen door keeps something out (bugs, pets, small children) and allows something through (small things)
Phospholipids: Lipids (fatty acid) with a phosphate group attached. Polar head and non-polar tails Hydrophilic (likes water) head and hydrophobic (afraid of water) tail
Hydrophilic and Hydrophobic Hydrophilic: likes water Hydrophobic: fears water - repels water
Carrier Proteins Found in plasma membrane (also known as transport proteins) Allows larger substances to move through the plasma membrane.
Cholesterol molecule Helps stabilize the phospholipids Prevents the fatty acid chains of the phospholipids from sticking together
Cell Transport Notes. All cells have a cell membrane made of proteins and lipids Cell Membrane lipid bilayer protein channel protein pump Layer 1 Layer.
Eukaryotic Cell Membrane. Cell Membrane Cell membrane: the flexible boundary of a cell (also called a plasma membrane) It separates a cell from its surroundings.
Section 7-3 Cell Boundaries. Plasma Membrane or Cell Membrane The boundary between the cell and its environment. Controls what enters and leaves the cell.
The Plasma (Cell) Membrane. Plasma Membrane Maintaining Balance Separates living cell from nonliving environment Allows flow of nutrients into and out.
Plasma Membrane Responsible for homeostasis. Plasma membrane Thin, flexible boundary between a cell and its environment. Allows nutrients in and allows.
Plasma Membrane. I. Maintaining Balance How do cells maintain balance? – Cells need to maintain a balance by controlling material that move in and out.
The Plasma Membrane Section 7.2 p Maintaining a Balance All living cells must maintain a balance regardless of internal + external conditions.
Homeostasis Living things respond to their environment Cells maintain homeostasis by controlling the movement of substances across the cell membrane.
Maintaining a Balance. 1.The plasma membrane is a SELECTIVELY (SEMI-) PERMEABLE membrane that allows nutrients and wastes to enter and exit the cell.
1 The Plasma Membrane The Plasma Membrane - Gateway to the Cell.
The Cell Membrane. What is the cell membrane? AKA: Plasma membrane The boundary between the cell and the environment Does every cell have a cell membrane?
Section 7.2 The Plasma Membrane. Ticket in the Door What are the 3 principles of cell theory? What is one main difference between prokaryotes and eukaryotes.
The Plasma Membrane 7.2. I. Maintaining Homeostasis A. ___________- The flexible boundary between the cell and its environment 1. A.K.A. Cell Membrane.
Learning Goal: Identify the major components of a cell membrane.
Warm-up What are the 3 components of cell theory? Balloon with vanilla.
(Phospholipid Bilayer). The Cell Membrane is Semi-Permeable or Selectively Permeable. This means it only allows certain substances to enter/exit the cell.
HOMEOSTASIS and the PLASMA MEMBRANE Carroll. Objectives Explain the function of the plasma membrane. Relate the function of the plasma membrane to the.
Objective: 4(B) Investigate and explain cellular processes, including homeostasis, energy conversions, transport of molecules, and synthesis of new molecules.
The Cell Membrane. What is the cell membrane? AKA: Plasma membrane AKA: Plasma membrane The boundary between the cell and the environment The boundary.
MENTAL MEMBRANE MANIA!. The following image represents what? 1. Protein 2. Phospholipid 3. Cholesterol 4. Glycoprotein 5. Glucose
Phospholipid A phospholipid is a type of lipid used in the cells of living things.
CELL MEMBRANE. ALL CELLS!!! Prokaryotes (bacteria, archaea) Eukaryotes (plants, animals, protists, fungi) WHAT TYPES OF CELLS HAVE CELL MEMBRANES?
CELL (PLASMA) MEMBRANE Chapter 4 Pg Homeostasis Balanced internal conditions of cells Maintained by cell membrane controlling what enters or.
Cell Membrane Notes. Cell Membrane - Plasma Membrane – Phospholipid Bilayer.
What is the cell membrane? AKA: Plasma membrane The boundary between the cell and the environment Does every cell have a cell membrane? Yes!, Each and.
Exchanging Materials with the Environment. Cells must be able to exchange materials with its environment.
Cellular Transport How Molecules Are Transported Across The Cell Membrane.
Phospholipid Bilayer. The Cell Membrane a phospholipid bilayer.
Also known as the cell membrane – It is so fun!. To regulate/control what enters and exits the cell. What types of things can get in and out of the.
Cell Membranes. PLO’s B9 - analyse the structure and function of the cell membrane Identify molecules in the membrane and how they contribute the characteristics.
AGENDA – 10/5/15 Take out notebooks! DO NOT GLUE ANYTHING IN YET! Set-up New Unit and TOC pages in notebook Warm-up: Plasma Membrane Plasma Membrane Notes.
Biology, I. Surrounds all cells Regulates cell’s internal environment Maintains HOMEOSTASIS Maintains the same conditions constant inside the cell,
MEMBRANE PERMEABILITY. Cell Membrane Cell Membrane 1. All cells have a cell membrane 2. Functions: a. Controls what enters and exits the cell to maintain.
7.2 PLASMA MEMBRANE. 7.2 THE PLASMA MEMBRANE WHAT YOU WILL LEARN: -how a cell’s plasma membrane functions -the roles of proteins, carbohydrates & cholesterol.
Aim: How cell membrane organized? HW #10 1. Complete the handout on the cell Do now: You have 5 min. 1.Explain how the following structures: a.Nucleolus.
The Cell Membrane Write. Cell Membrane The membrane of the cell has many different names. You may hear it called: The phospholipid bilayer The semi-permeable.
The Plasma Membrane and Homeostasis Homeostasis – Maintaining a Balance Cells must keep the proper concentration of nutrients and water and eliminate.
1 Movement through Cell Membranes Movement through Cell Membranes- Gateway to the Cell.
Cell Types Review and Plasma (cell) membrane Section 2 Objectives – page 175 Section Objectives Relate the function of the plasma membrane to the fluid.
The Cell Membrane. I.) What is the cell membrane? A. AKA: Plasma membrane B. The boundary between the cell and the environment C. Does every cell have.
The Cell (aka Plasma) Membrane intro mini-movie intro mini-movie.
Cellular Transport: Cell Membrane How Molecules Are Transported Across The Cell Membrane.
Plasma Membrane Thin, flexible boundary between the cell and its environment The Plasma Membrane Cellular Structure and Function Allows nutrients.
Plasma Membrane. Cell Membrane 1. What is the special lipid found in the plasma membrane? 2. What do you think makes up the plasma membrane?
7.2 – The Plasma Membrane State Standard SB1a Explain the role of cell organelles for both prokaryotic & eukaryotic cells, including the cell membrane,
CHAPTER 5: Cellular Processes Section Plasma Membrane Pgs Objective: I can explain the properties and “behavior” of the plasma membrane.
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