Active and Bulk Transport

Slides:

Advertisements

Similar presentations

Cell Transport Semipermeable membrane – small, lipid-soluble particles can pass, but large, charged particles cannot Diffusion – net movement of particles.

Advertisements

1.16 Active Transport and Bulk Transport

Membrane Transport Lion Den Slide Collection By Kevin Patton User Manual Click each slide to advance it.

Homeostasis & Transport

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

Active Transport pp. 67 to 71. We know that passive transport involves NO energy, but.... As living beings, we NEED energy to sustain life processes.

Homeostasis and Cell Transport

Answer the following questions for the picture. Write the ANSWER only. 1. _________ is the movement of water. 2. _______ ________ requires energy to move.

ACTIVE TRANSPORT. LEARNING GOALS We need to understand the basic process of transport across a plasma membrane. We are learning... To understand the difference.

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

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.

A. Active Transport a. Active transport is the transport of a substance across the cell membrane against its concentration gradient (from low to high.

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.

Transport: Passive and Active. Structure of Cell membranes Fluid not rigid Selectively permeable Made of a phospholipid bilayer Embedded with proteins.

Do Now Use you notes to help you answer the questions. There is a quiz on this NEXT CLASS!

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?

CELLULAR TRANSPORT SBI 3C SEPTEMBER PASSIVE TRANSPORT:  Transport that does not require energy.  Important Terms:  Dynamic equilibrium:  A state.

Cell Membrane What is it? – Barrier that separates cell from external environment – Composed of two phospholipid layers Other molecules are embedded in.

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?

KEY CONCEPT Cells use energy to transport materials that cannot diffuse across a membrane. 3.5 Active Transport, Endocytosis, and Exocytosis.

Active Transport IB Biology. Key Words Active transport Sodium-Potassium pump Endocytosis Exocytosis ATP Pinocytosis Phagocytosis Intracellular vesicle.

Cell Membrane Pumps and Vesicle Transport

Passive Transport Review

3.5 Active Transport, Endocytosis, and Exocytosis

Active Transport Using energy.

ACTIVE TRANSPORT Active transport – the transport of a substance across the cell membrane against its concentration gradient; because the movement of.

Active Transport 7.4.

ACTIVE TRANSPORT Active transport – the transport of a substance across the cell membrane against its concentration gradient; because the movement of.

Active Transport.

Active Transport cell uses energy (ATP)

Mechanisms of Cellular Transport Continued…

Moving Cellular Material

Passive Transport Review

3.5 Active Transport, Endocytosis, and Exocytosis

Active Transport DOES Require energy (or ATP)

Active Transport: What Can Cells Do When Diffusion Doesn’t Work?

Active Transport pp. 67 to 71.

3.5 Active Transport, Endocytosis, and Exocytosis

3.5 Active Transport, Endocytosis, and Exocytosis

ACTIVE TRANSPORT Active transport – the transport of a substance across the cell membrane against its concentration gradient; because the movement of.

Protein Pump Exocytosis Endocytosis

Active Transport cell uses energy (ATP)

ATP ATP Active Transport Using Energy ATP ATP.

Active transport.

Active Transport Lesson 11 February 3rd, 2011.

3.5 Active Transport, Endocytosis, and Exocytosis

3.5 Active Transport, Endocytosis, and Exocytosis

3.5 Active Transport, Endocytosis, and Exocytosis

3.5 Active Transport, Endocytosis, and Exocytosis

Active transport Requires the cell to use energy (ATP)

3.5 Active Transport, Endocytosis, and Exocytosis

Cell Membrane Pumps and Vesicle Transport

Homeostasis & Transport

3.5 Active Transport, Endocytosis, and Exocytosis

Active Transport.

Active Transport Chapter 7.3.

3.5 Active Transport, Endocytosis, and Exocytosis

Active Transport Review.

Notes: Movement of Material Across the Cell Membrane Active Transport

Cells and Their Environment

3.5 Active Transport, Endocytosis, and Exocytosis

3.5 Active Transport, Endocytosis, and Exocytosis

Chapter 7 – Cell Structure & Function

Cell Membrane Pumps and Vesicle Transport

Active Transport cell uses energy (ATP)

ACTIVE TRANSPORT Active transport – the transport of a substance across the cell membrane against its concentration gradient; because the movement of.

Presentation transcript:

Active and Bulk Transport

Active Transport After digestion, nutrients (eg. Glucose) are absorbed into our cells Uses energy to ‘pump’ molecules from place to place Diffusion cannot be used because it would stop when the cell reached dynamic equilibrium

The molecule is pumped against the concentration gradient by membrane channels These channels need ATP (energy molecule) to work

Sodium/ Potassium Pumps Na+/K+ Pump Very important in muscle and nerve cells Allows for muscle contractions and for nerve messages to travel from cell to cell

Bulk Transport The movement of large quantities of molecules in and out of cells (requires ATP)

Endocytosis Movement of molecules INTO the cell Can be solids (phagocytosis) or liquids (pinocytosis) Vesicles (sacs) are formed around the food or liquid and carry it from the cell membrane through the cytoplasm

Exocytosis Movement of molecules OUT of the cell (ex. Hormones) A secretory vesicle forms around the molecule and carries it out of the cell