Today’s Agenda: Introduction to the Cell Membrane

Slides:



Advertisements
Similar presentations
Intermolecular Forces Chemistry Mrs. Coyle. Intermolecular Forces The forces with which molecules attract each other.
Advertisements

Intermolecular Forces Pages ; Intermolecular Forces Forces of attraction between molecules Forces of attraction between molecules Link.
- Lewis structures and bonds - bonding theories
Polarity of Molecules Objectives: 1. State the two factors that determine polarity of a molecule. 2. Explain how the structure of a molecule helps determine.
Intermolecular Forces of Attraction. CA Standards Students know the atoms and molecules in liquids move in a random pattern relative to one another because.
C HAPTER 8 SEC 8.4 Chemical Bonds C H 8 S EC 8.4 D ETERMINATION OF B OND TYPE ? Bond type: difference in electronegativity? Ionic : 3.3 – 1.7 range of.
Intermolecular Forces
The Name is Bond Chemical Bond!.
Types of Intermolecular Bonds
Intermolecular Attractions: Attractions between molecules Van der Waals Forces Dipole interactions Dispersion forces Hydrogen Bonds.
The Plasma Membrane - Gateway to the Cell
Polarity Notes. February 5, 2014 Students will be able to define and identify: – Bond polarity and overall molecular polarity – Intermolecular forces.
Chapter 13 Notes #3 Intermolecular Forces
INTERMOLECULAR FORCES (bonds) Occur between molecules Weaker than intramolecular forces.
8-2: Polarity. Remember electronegativity… An atom’s ability to attract electrons in a chemical bond. Polar bond: electrons are shared unequally between.
Polar Bonds and Molecules Chapter 8.4
8 - 1 Intermolecular Forces Intermolecular forces are attractive forces between molecules. The type of intermolecular forces present dependent upon: 
Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. – In a polar molecule, one end of the molecule is slightly negative, and the.
Intermolecular Forces By Peter Demkowicz. Why? Intermolecular Forces.
Intermolecular Forces of Attraction. Intermolecular Forces Forces that attract molecules to other molecules. These include:  Forces that attract molecules.
Movement Through the Membrane Mr. Luis A. Velázquez Biology.
Intermolecular Forces May the Force be with you, Or not??
Interdisciplinary Investigations (IDI)
IMF’s.
Intermolecular Attractive Forces: Liquids and Solids
Interdisciplinary Investigations (IDI)
Today’s Agenda: The Discovery of the Structure of DNA
Intermolecular Forces
Intermolecular Forces
The Plasma Membrane AP Biology.
Fall 2013 Exam III 1. c 9. e 16. (next slides)
Polar Bonds Chemistry Mr. Scott.
What can we compare this to in our bodies?
Intermolecular Forces
Warm-up #26 Compare CCl4 and MgCl2
Draw and label the parts of the cell membrane.
Cell membranes are composed of two phospholipid layers.
CELL MEMBRANE.
Bellwork Tuesday Draw the Lewis Structure and name the correct shaped molecule for all of the following. BF3 CH4 HBr NH3.
Interdisciplinary Investigations (IDI)
Unit 8: Water + IMF experiencing the feel of world record swimming speed 10:30 Objectives Define properties associated with water. (Cohesion adhesion surface.
Intermolecular attractions
Intermolecular Forces
Intermolecular Forces
Lesson 4.2 Explaining Solutions SCH 3U.
Intermolecular Forces of Attraction
Intermolecular Forces
Attractions Within & Between Molecules
Intermolecular Forces
Essential knowledge 2.B.1:
Chapter Intermolecular Forces or IMF (p. 219 – 224)
Intramolecular forces vs. Intermolecular forces
Today: Membrane Function Structure & Function
Intermolecular Forces
INTERMOLECULAR FORCES
Dipole Forces Main Concept:
Bond Types.
Intramolecular Force Summary
Chemistry WarmUp What is a valence electron? What is a valence shell?
Hydrogen bonds What are they?
• Explain how a permanent dipole can result in a polar bond.
Bond Types.
12.1 Intramolecular Forces
Intermolecular Forces
Forces of Attraction Chapter 13-2.
Intermolecular Forces
Intermolecular forces
Ch. 8 Intermolecular Forces
Intermolecular Forces
Intermolecular Forces
Presentation transcript:

Exploring Membrane Structure and Function Research-Based, Interdisciplinary STEM Education (RISE)

Today’s Agenda: Introduction to the Cell Membrane Intermolecular Forces and Membrane Transport For Next Week: Read the papers provided and prepare a brief summary with two+ questions

The Fluid Mosaic Model of the Cell Membrane

Key Structural Component: The Phospholipid Think/ Pair/ Share: What do you notice about the structure of this molecule? Think/ Pair/ Share: What does this mean for the intermolecular forces between these molecules?

London Dispersion Forces

Dipole-Dipole Forces

Hydrogen Bonds Figure: 10-06-02UN Title: Hydrogen bonding Caption: Hydrogen bonds are also found between molecules of water and molecules of ammonia. They are defined as the attractive interaction between a hydrogen atom bonded to a very electronegative atom (O, N, or F) and an unshared electron pair on another electronegative atom.

Key Structural Component: The Phospholipid

Key Structural Component: A Mosaic of Proteins

A Quick Look at Protein Structure

A Quick Look at Protein Structure

Key Features of Membrane Proteins Think/ Pair/ Share: What must be true about the structure of proteins that span the cell membrane?

Visualizing the Cell Membrane: https://www.youtube.com/watch?v=LKN5sq5dtW4&list=PL13jH2BYL65_q5j1vBga32xNiYT57P5KC

Crossing the Cell Membrane What types of things does a cell need to get across its membrane? Of those things, which can cross freely?? Why?? What about everything else??

X Cell membranes are SELECTIVELY PERMEABLE O2, CO2, and other small, nonpolar molecules; and H2O large, polar molecules; ions such as H+, Na+, CI-, Ca++; X

Your Challenge: Use your understanding of protein structure to construct a model (drawing) of what a water channel in a cell membrane would look like, and how it would orient itself in a plasma membrane. Would such a channel need to be specific for water? If so, how could it accomplish this specificity?

For Next Week: Read the papers provided and prepare a brief summary with two+ questions