The Life of the Cell Chapter 3. Types of Movements 1. Diffusion and passive transport 2. Active Transport 3. Phagocytosis & Exocytosis 4. Osmosis.

Slides:

Advertisements

Similar presentations

Structure and Function

Advertisements

Chapter 7 part 5 Methods of Transport across membranes Diffusion Osmosis Facilitated diffusion Active transport.

Osmosis and Diffusion Semi-Permeable membrane – allows some things through and keeps other things out (Also called selectively permeable)

Structure and Function

Plant and Animal Cell Structures

What are the differences between osmosis and diffusion?

Diffusion and Osmosis. Diffusion Solute molecules moving from an area of high concentration to an area of low concentration –Random motion drives diffusion.

Diffusion Protein Mediated Diffusion integral membrane proteins transport proteins (transporters) –diffusion through hydrophilic channels –facilitated.

Movement of materials through the cell membrane Passive Transport: materials move across the cell membrane by diffusion Diffusion can cause a cell to expand.

Cell Transport EQ: Explain how active and passive transport help the cell maintain homeostasis. SC B-2.5 Explain how active, passive, and facilitated transport.

Cell Transport & Homeostasis Key Terms

Cell Transport Cell Bio. & Genetics Mr. Foster. Cell Transport Passive – energy not required to move material across membrane –Diffusion – molecules move.

Facilitated Diffusion Active Transport

Chapter 5 Membrane Dynamics. Outline  Cell Membranes  Movement across membranes  Distribution of water and solutes in the body  Osmosis Lab.

Cell Transport Study Guide Key

Part 3: Homeostasis and Cell Transport (Chapter 5)

Notes Cells need to regulate what moves in and out of them,in order to maintain homeostasis. The cell membrane is in charge of what comes and goes. The.

Passive vs. Active Transport. Passive Transport Does NOT require energy Moves substances from higher to lower concentration.

Transportation of Molecules. Cellular Transport Carbohydrate Chain Lipid Bilayer.

Moving Cellular Material Chapter 2, Lesson 3. Membranes Control the movement of materials in and out of cell. – Semipermeable – only certain substances.

Chapter 7.3: Moving Materials Into and Out of Cells.

Materials move across membranes because of concentration differences.

Passive Transport Concentration Gradient: the difference in the number of molecules in one area than in another area Requires no energy Goes from an area.

KEY CONCEPT Materials move across membranes because of concentration differences. 3.4 Diffusion and Osmosis.

6.3 Transport. What do you predict will happen if food coloring is dropped into a beaker of water? Where are the molecules most concentrated to start?

Movement of substances through the cell membrane..

Transport across Plasma membranes. Membranes Are differentially permeable – Permeable to SOME substances. The membrane selects what substances pass through.

CELLULAR TRANSPORT Chapter 7 Pages Cell Transport The goal of cellular transport is to move substances into the cell that the cell needs and.

Essential Standard Bio.1.2 Analyze the cell as a living system.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

Essential Standard Bio.1.2 Analyze the cell as a living system.

Notes: Cellular Transport

Structure and Function

There are 2 types of movement across the plasma membrane:

Section 4 Cellular Transport

Diffusion and Osmosis

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

1.4 Membrane transport.

PLASMA MEMBRANE DIFFUSION-GOING FROM AN AREA OF A HIGH CONCENTRATION TO ONE OF LOW CONCENTRATION OSMOSIS-DIFFUSION OF WATER THROUGH A SEMIPERMEABLE MEMBRANE.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

DO NOW Name the three particles in an atom and their associated charges? Where is the majority of the mass of an atom? Which particles compose this mass?

The student is expected to: 4B investigate and explain cellular processes, including homeostasis, energy conversions, transport of molecules, and synthesis.

Chapter 4 Objectives Explain the process of diffusion.

Movement of particles across the cell membrane without using energy

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

The student is expected to: 4B investigate and explain cellular processes, including homeostasis, energy conversions, transport of molecules, and synthesis.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

Movement of particles across the cell membrane without using energy

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

Movement of substances through the cell membrane.

Chapter 7 Cellular Structure and Function

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

Cells and Their Environment

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

Movement of particles across the cell membrane without using energy

PHAGOCYTOSIS ENDOCYTOSIS EXOCYTOSIS PINOCYTOSIS

Chapter 3, Part 2 Notes 3.4 Diffusion and Osmosis

Chapter 7 – Cell Structure & Function

TRANSPORT ACROSS MEMBRANES

Cell Transport Review.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

Presentation transcript:

The Life of the Cell Chapter 3

Types of Movements 1. Diffusion and passive transport 2. Active Transport 3. Phagocytosis & Exocytosis 4. Osmosis

1. solution

Passive Transport Nucleus [Low] [High] Note: Solutes move

2. Active Transport: may be ions (e.g. Na+, K+ or other molecules like glucose). Requires Energy Requires a Transporter

Exocytosis Endocytosis and Phagocytosis 3. Movement of large molecules: requires energy also

4. Osmosis is : the movement of WATER from a region of HIGHER WATER concentration to region of LOWER WATER concentration across a semi-permeable membrane.

Now: A real life example of how osmosis is important to the human red blood cells. It is helpful to understand the term of “osmolarity”.

Osmolarity (FYI) Osmolarity is the measure of solute concentration, defined as the number of osmoles(Osm) of solute per liter(L) of solution (osmol/L or Osm/L). 1 mol/L NaCl corresponds to an osmolarity of 2 osmol/L each mole of NaCl becomes two osmoles in solution, one mole of Na+ and one mole of Cl-. Similarly, a solution of 1 mol/L CaCl2, gives a solution of 3 osmol/L (Ca2+ and 2 Cl-).

What happens to the shapes of the RBC? Crenation SwellingNo change 600 mOsm300 mOsm200 mOsm

milliosmosmoles Red Blood Cells and the affect of Tonicity

We will next discuss our digestive system