Do Now 10/22 Get out your notebooks!

Slides:



Advertisements
Similar presentations
The Cell Membrane. What is the cell membrane? AKA: Plasma membrane AKA: Plasma membrane The boundary between the cell and the environment The boundary.
Advertisements

The Cell (aka Plasma) Membrane intro mini-movie intro mini-movie.
Warm-Up #2 10/30/12 1) What does this picture represent? 2) What does hydrophilic mean? Hydrophobic? 3) What does selective permeability mean? 4) Where.
The Cell Membrane 1 Cell membranes are composed of two phospholipid layers called a phosholipid bilayer. The cell membrane has two major functions: 1.
CELL MEMBRANE Cell Membrane Structure. Cell Boundaries liquid environment Every cell is surrounded by a liquid environment liquid inside (cytoplasm)
The Cell Membrane. ALL Cells of ALL Organisms have a:
The Plasma (Cell) Membrane. Plasma Membrane Maintaining Balance Separates living cell from nonliving environment Allows flow of nutrients into and out.
7.2 – The Plasma Membrane State Standard SB1a
The Plasma Membrane Section 7.2 p
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?
Cellular Transport Notes
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.
Membrane Transport Pages include information on membrane transport.
Date: November 18, 2015 Aim #27: How does the structure of the cell membrane contribute to its function? HW: 1) Quiz next Tuesday 11/24 and Wednesday 11/25.
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?
The Plasma Membrane. The cell membrane functions as a semi- permeable barrier: The cell membrane functions as a semi- permeable barrier: allows a few.
Phospholipid A phospholipid is a type of lipid used in the cells of living things.
The Structure of the Plasma Membrane. Membrane Structure The plasma membrane is 8 nm thick. It is mainly made up of phospholipids and proteins.
Warm Up Name the organelle that… 1. Is a network of proteins that supports and gives shape to the cell 2. Processes and delivers proteins 3. Is located.
CELL MEMBRANE.  ALL CELLS!!!  Prokaryotes  (bacteria, archaea)  Eukaryotes  (plants, animals, protists, fungi) WHAT TYPES OF CELLS HAVE CELL MEMBRANES?
MENTAL MEMBRANE MANIA!. The following image represents what? 1. Protein 2. Phospholipid 3. Cholesterol 4. Glycoprotein 5. Glucose
The Cell Membrane and Regulation. Function of a Cell Membrane Regulation of what moves into and out of a cell Regulation of what moves into and out of.
The Cell Membrane Cell membranes are composed of two phospholipid layers.
Do Now! Brainstorm: What parts of a house separate it from it’s external environment? What may enter through those parts?
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.
Do Now Turn in your plant & animal cell lab from yesterday Turn in your Prok. & Euk. Interactive What type of cell is pictured below? How do you know?
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?
3.3 Cell Membrane TEKS 3E, 4B, 9A KEY CONCEPT The cell membrane is a barrier that separates a cell from the external environment.
Plasma Membrane  Responsible for homeostasis. Plasma membrane Thin, flexible boundary between a cell and its environment. Allows nutrients in and allows.
The Cell Membrane.
HOMEOSTASIS and the PLASMA MEMBRANE Carroll. Objectives Explain the function of the plasma membrane. Relate the function of the plasma membrane to the.
The Cell Membrane Bell-ringer : Make a list of anything you know about the plasma membrane.
7.2 – Eukaryotic Cell Structure. Cell Boundary (Animal & Plant) O Cell Membrane O Function: O Controls what enters or exits the cell O Semipermeable –
Homeostasis What are the four functions that the cell membrane performs to maintain homeostasis? 1.Regulates what goes in and out of the cell. Acting.
CELL MEMBRANE. FUNCTION & COMPOSITION  Forms barrier between interior and exterior of cell  Controls what comes in and out of cell  Cell to cell communication.
Cell membranes are composed of two phospholipid layers.
The Cell (Plasma) Membrane
Warm Up for 10/4: In a sentence or two, explain why the oil can’t “mix” with the water molecules.
The Plasma Membrane Essential Questions: How does the structure of the plasma membrane allow it to function as a regulatory organelle and protective.
Plasma Membrane.
The Cell Membrane.
7.2 – The Plasma Membrane State Standard SB1a
Cell Structure 7.2.
CELL SIZE AND CELL MEMBRANE
The Cell Membrane.
Cell Membrane Structure
Cellular Membrane Notes
TEM picture of a real cell membrane.
CELL STRUCTURE AND FUNCTIONS
Cell membranes are composed of two phospholipid layers.
Fluid Mosaic Model of the Cell Membrane
The Plasma (Cell) Membrane
7.2 – The Plasma Membrane State Standard SB1a
Structure and Function
Plasma Membrane Structure and Function
The Cell (Plasma) Membrane
Membranes of the Cell Review
Phospholipids and Membrane Structure
Read pgs Complete Review QUESTIONS
The plasma (Cell) membrane
The Plasma Membrane Section 7.2.
The Cell Membrane.
The Cell Membrane 3.3 E.Q.: How is the structure of the cell membrane important for its function?
SWBAT describe membrane structure
The Plasma Membrane.
Cell Membrane.
The Cell Membrane!.
Cell Membrane The Fluid Mosaic Model.
The Cell Membrane.
Presentation transcript:

Do Now 10/22 Get out your notebooks! Label your next available page (14) “Water”

CELL SIZE AND CELL MEMBRANE SB1.a. Explain the role of cell organelles for both prokaryotic and eukaryotic cells, including the cell membrane, in maintaining homeostasis and cell reproduction.

Do Now 2 Venn Diagrams: On page 34- prokaryotes vs. eukaryotes On page 35- plant cells vs animal cells

Do Now Grab your notebook out of the orange crate! I am about to pass your test scores out so take a seat and wait for further directions

Why are cells so small? If cell is too big, takes too long for necessary chemicals to get around the cell. Insects and elephants have cells that are the same size, the elephant just has more of them and the ones they have are more specialized.

Why is the cell membrane said to be selectively permeable? Controls what goes in and out. What goes in and out is controlled by proteins embedded in the cell membrane.

What is the Cell Membrane Composed of? 1. Phospholipid Bilayer Phospholipid- “Phospho”- phosphate heads hydrophilic (polar); form outer boundary of cell membrane “Lipid”- two lipid tails Hydrophobic (nonpolar) form inner layer of cell membrane Bilayer- two layers of phospholipid molecules

What is the Cell Membrane Composed of? Proteins Channel proteins- allow larger molecules in/out Carrier proteins- allow larger molecules in/out but change shape to do so. Glycoproteins- allow cells to recognize each other

What is the Cell Membrane Composed of? 3. Cholesterol- stabilizes the cell membrane so not too “loose.”

Why is the cell membrane described as a fluid mosaic? Fluid Mosaic Model “Fluid”- Phospholipids & proteins can drift sideways in the membrane. “mosaic”- membrane is studded with many different kinds of proteins. Fluid Mosaic Animation

Quiz 1 Which part of the cell membrane repels water? a. proteins b. phospholipids c. enzyme 2. Hydrophilic means? a. water loving b. water hating c. contains water 3. Which part of the cell membrane has pores? a. proteins b. phospholipids c. enzyme layer 4. What part of the cell membrane acts as recognition markers? a. proteins b. phospholipids c. enzymes

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.