CELL TRANSPORT.

Slides:

Advertisements

Similar presentations

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

Advertisements

Cellular Transport.

Structure and Function

Active Transport, Diffusion and Osmosis. Passive Transport by Diffusion Diffusion is the movement of molecules from an area of high concentration to an.

Transport Processes Passive processes Active processes

Passive and Active Transport

Cells and Their Environment

Homeostasis & Transport. Section 1: Diffusion & Osmosis.

Homeostasis and Transport

Facilitated Diffusion Active Transport

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

Palomar Community College

Cellular Transport. I. General A. Definition = molecules moving across the cell membrane B. Cell Membrane is selectively permeable (lets some things in,

Transport Across the Cell Membrane

THE CELL MEMBRANE CHAPTER 5. Fluid Mosaic Model Fundamental Architecture of Cell Membranes Phospholipid Bilayer Transmembrane Proteins Interior protein.

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

Chapter 2 Lesson 3 Moving Cellular Materials. Cell Membrane The cell membrane is selectively permeable ◦ It allows certain things into the cell while.

Part 3: Homeostasis and Cell Transport (Chapter 5)

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.

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

Active vs. Passive Transport FA Learning Goal: Compare and contrast active and passive transport.

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

Passive vs Active Transport Osmosis, Diffusion, and Energy.

Chapter 3: Cellular Level of Organization. Introduction Smallest unit performing vital physiological functions Sex Cells Somatic Cells Homeostasis maintained.

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.

Bell Work! 1. Why are vacuoles important to PLANTS?

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

Transport across membranes. Candidates should be able to: Syllabus reference:

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

Cellular Transport Molecules moving across the cell membrane Cell Membrane is selectively permeable (lets some things in, some things out, but not everything)

Movement of substances through the cell membrane..

MEMBRANE STRUCTURE AND FUNCTION Membrane transport “Got to get it there” Chapter 7 Continued.

Passive Transport Does not require The diffusion of __________

Homeostasis & Transport

Competencies explain transport mechanisms in cells (diffusion osmosis,facilitated transport, active transport) STEM_BIO11/12-Ig-h differentiate exocytosis.

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

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

Passive Transport Review

Transport across cell membranes

Notes: Cellular Transport

Structure and Function

Warm-Up Name the three basic parts of a cell and describe the functions of each. Why do phospholipids organize into a bilayer – tail-to-tail – in a watery.

Cell Membranes.

4/5 Wednesday’s Notes: Active Transport

Warm-Up Name the three basic parts of a cell and describe the functions of each. Why do phospholipids organize into a bilayer – tail-to-tail – in a watery.

Section 3.3 – Movements Through Cell Membranes

Molecule Movement & Cells

Mechanisms of Cellular Transport Continued…

CELLS AND THEIR ENVIRONMENTS

Diffusion and Osmosis

Chapter 7 Cell Structure and Function

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

Passive Transport Review

Write Cell Transport.

The Cell Membrane Mader Biology, Chapter 5.

There are two types of passive transport:

CELLS AND THEIR ENVIRONMENTS

II. Membrane Transport Two types: Passive & Active

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?

Crash Course Membranes and Transport-CrashCourse (Resources Page)

ACTIVE transport!.

Movement of substances through the cell membrane.

Membrane Transport Department of Biology, WCU.

3.5 Active Transport, Endocytosis, and Exocytosis

PHAGOCYTOSIS ENDOCYTOSIS EXOCYTOSIS PINOCYTOSIS

Chapter 3, Part 2 Notes 3.4 Diffusion and Osmosis

Cell Transport Review.

Movement Through the Cell Membrane

Active and Passive Transport

Presentation transcript:

CELL TRANSPORT

Modes of transport Active Passive

Links of animated diagrams www.brookscole.com/chemistry_d/.../animations/.../ionpump.html www.northland.cc.mn.us/biology/.../animations/active1.swf

Q 1 : What are the differences between active & passive transport?

A 1 : Active transport Needs energy from ATP Transport against chemical / electrical gradient Passive transport Does not need energy Molecules move randomly along a concentration gradient

Facilitated diffusion Passive transport Solvent diffusion Facilitated diffusion Osmosis Solvent drag

OSMOSIS

ACTIVE Primary Secondary Exocytosis Endocytosis

What is the difference between primary & secondary active transport? Q : What is the difference between primary & secondary active transport? A : Primary active transport directly uses ATP while secondary active transport indirectly needs energy.

Exocytosis Endocytosis

ENDOCYTOSIS PINOCYTOSIS PHAGOCYTOSIS Engulf large particles into vesicles PINOCYTOSIS Uptake of fluid & fluid contents

Mechanisms of cell transport Diffusion Membrane proteins Channels Carriers/ Transporters Endocytosis Osmosis Solvent drag

What is Simple diffusion? Q 2: What is Simple diffusion? A 2 : Passive flow of a solute from high concentration to a low concentration due to random movement

Channels & Transporters Specific Can be inhibited Competition between similar molecules Can get saturated

Gated Ion Channels Voltage-gated Ligand-gated Mechanical-gated

Q : What are Aquaporins A : Water channels in certain cell membranes . Eg: red cells, collecting ductules of kidney.

Carrier mediated transporters Symports Uniports Antiports

THE END