Facilitated Diffusion vs. Active Transport

Slides:

Advertisements

Similar presentations

Movement through the channel

Advertisements

Lesson Overview 7.3 Cell Transport.

Do Now! Copy vocabulary words into your notebooks: cell membrane concentration diffusion osmosis equilibrium active transport passive transport.

Homeostasis & Transport

1 ACTIVE TRANSPORT ACROSS A MEMBRANE. Overview of Active Transport Active Transport 1. Carrier Protein 2. Endocytosis3. Exocytosis.

Structure of the Cell or Plasma Membrane The cell membrane is like a mosaic of many parts.

Active Transport Requires use of energy because it does not happen naturally through diffusion or facilitated diffusion. Requires a carrier protein* that.

No energy is used [High]  [Low] (it’s the natural flow) This means it goes down a concentration gradient.

A. It is larger because sugar entered the cell by diffusion. B. It is larger because water entered the cell by osmosis. C. It is smaller because sugar.

Types of Cellular Transport  Passive Transport  Does NOT require energy cell doesn’t use energy 1.Diffusion 2.Facilitated Diffusion 3.Osmosis  Active.

Facilitated Diffusion and Active Transport. Facilitated Diffusion Many molecules and ions need special protein channels to pass through the cell membrane.

Facilitated Diffusion Active Transport

Chapter 3. Passive Transport  Diffusion – molecules move spontaneously (no energy used) from an area of high concentration to an area of low concentration.

Active Transport. Moves molecules from low to high concentration AGAINST a concentration gradient Requires energy, so cell must use ATP.

Osmosis, Diffusion, Active Transport

Movement Through The Cell Membrane. How Things Move in and Out of the Cell The cell membrane is selectively permeable, allowing some substances, but not.

Bellringer-December 11, If a cell contains 85% water and is placed into a environment which is 50% water. Is the CELL hypotonic or hypertonic?

IV. Cell Transport A. Diffusion Through Cell Boundaries *In solution, particles move constantly, collide, and spread out randomly. Diffusion - process.

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

Transport The movement of molecules and ions across a membrane.

Passive vs Active Transport Osmosis, Diffusion, and Energy.

 Cell transport is the movement of particles and it takes place because cells are trying to maintain balance (homeostasis).

Active Transport Movement of materials through a membrane against a concentration gradient and requires energy from the cell. (ATP) Low Concentration.

Active Transport *Solutes flow against the concentration gradient. * The cell uses energy…. ATP. *Requires Transport Proteins Types of Active Transport.

Homeostasis & Transport

Mitochondria Have their own DNA Bound by double membrane.

Passive Transport Review

Active Transport Across the Cell Membrane

Osmosis, Diffusion, Active Transport

Osmosis, Diffusion, Active Transport

Active Transport Using energy.

Cell Transport TSW compare and contrast the various methods molecules move across the cell membrane.

MEMBRANE STUCTURE AND FUNCTION How things get into and out of the cell

Active Transport.

Active Transport Honors Biology.

Molecule Movement & Cells

Active Transport.

Membrane Transport.

Do Now! Copy vocabulary words into your notebooks: cell membrane concentration diffusion osmosis equilibrium active transport passive transport.

CELLULAR TRANSPORT.

Passive Transport Review

Cell Transport (7.3).

Active Transport Movement of materials through a membrane against a concentration gradient and requires energy from the cell. (ATP) Low Concentration.

II. Membrane Transport Two types: Passive & Active

Protein Pump Exocytosis Endocytosis

ATP ATP Active Transport Using Energy ATP ATP.

All About Cells Cell Boundaries Part 2.

Osmosis, Diffusion, Active Transport

Facilitated Diffusion vs. Active Transport

Cell transport: Diffusion and Osmosis

Homeostasis & Transport

Active Transport Active transport: moving molecules in a direction across the concentration gradient. Requires energy Molecular Transport Endocytosis.

Active Transport.

Osmosis, Diffusion, Active Transport

Cell Transport Notes.

Active transport is the pumping ضَخ of solutes against their concentration gradients الإنحدار التركيزي Some facilitated transport proteins can move solutes.

Osmosis, Diffusion, Active Transport

MEMBRANE STUCTURE AND FUNCTION How things get into and out of the cell

Osmosis, Diffusion, Active Transport

Active Transport Chapter 7.3.

Warm up #5 Identify 3 differences between plant and animal cells

Notes: Movement of Material Across the Cell Membrane Active Transport

Ch. 7-3 Cell Boundaries Notes.

From Low to High Concentration

PHAGOCYTOSIS ENDOCYTOSIS EXOCYTOSIS PINOCYTOSIS

Cell Transport Review.

Movement Through the Cell Membrane

Active and Passive Transport

Cell Transport Chapter 7, section 3

Presentation transcript:

Facilitated Diffusion vs. Active Transport

Facilitated Diffusion Particles always move with (down) a concentration gradient. Uses transport/channel proteins. Passive transport. Usually for specific molecules such as glucose. Facilitated diffusion stops at equilibrium.

Active transport Active Transport: requires energy in the form of ATP. Capable of moving solute particles against the conc. gradient (from low conc. to high conc.) Uses transport/carrier proteins (protein pumps) embedded in the plasma membrane. Carrier proteins are specific for the molecules that they allow through. The carrier protein changes shape which requires energy (ATP).

Active Transport against the concentration gradient

Active Transport Endocytosis: a process of taking material into the cell by means of infoldings, or pockets, of the cell membrane (usually putting them into a vacuole). Phagocytosis -“Cell eating” Nonspecific molecules Intake of solids Pinocytosis –”Cell Drinking” Intake of small droplets of liquid

Active Transport Exocytosis (reverse endocytosis): a process in which the membrane of the vacuole surrounding the material fuses with the cell membrane, forcing the contents out of the cell.

EXO and ENDO