4/1 Daily Catalyst Pg. 44 Active Transport

Slides:

Advertisements

Similar presentations

Homeostasis refers to the necessity of an organism to maintain constant or stable conditions. In order to maintain homeostasis, all organisms have processes.

Advertisements

Cells and Their Environment

Biology 101A Unit 3A Day 6: Active transport. Before class starts… Make sure that you turn in your case study from yesterday Open notebook to Unit Assignment.

1 This is Jeopardy Cell Transport 2 Category No. 1 Category No. 2 Category No. 3 Category No. 4 Category No Final Jeopardy.

ACTIVE TRANSPORT. Moving substances against their concentration gradient Cost energy!!! Types of Active Transport  Sodium-potassium pumps  Endocytosis.

Section Objectives Explain how the processes of diffusion, passive transport, and active transport occur and why they are important to cells. Predict.

Pretest What is the job of the plasma membrane?

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

Active and Passive Transport. Passive Transport Movement of substance through the cell membrane without the input of energy Three types – Diffusion –

Passive and Active Transport

Cells and Their Environment

Transport Flip ‘n Go. FOLLOW THESE INSTRUCTIONS EXACTLY. COPY THE QUESTION OR QUESTIONS ON EACH SLIDE. THINK ABOUT THE ANSWER OR REVIEW YOUR NOTES FOR.

Chapter 5 Table of Contents Section 1 Passive Transport

Movement through the channel Why do molecules move through membrane if you give them a channel? ? ? HIGH LOW.

Discussion Questions – in your notes 1. Movement across a cell membrane without the input of energy is described by what term? 2. A substance moves from.

Facilitated Diffusion Active Transport

Objectives 7.3 Cell Transport -Describe passive transport. -Describe active transport.

Warm up The cell membrane is called phospholipid bilayer. – What is a phospholipid? – Which part of the phospholipid is hydrophobic? – Which part of the.

Mr. Chapman Biology Main Types of Transport  There are 2 main types of transport when it comes to molecules moving across the cell membrane. 

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Homeostasis and Cell Transport Chapter 5 Table of Contents Section.

Cell Transport Mechanisms. Moving molecules across the Cell Membrane Two methods: Passive Transport Active Transport.

Membrane Structure and Function The plasma membrane controls what enters and leaves the cell.

Part 3: Homeostasis and Cell Transport (Chapter 5)

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?

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 Osmosis, Diffusion, and Energy.

Transport. Concentration Gradient If there is a concentration gradient, movement will occur After concentrations are equal= dynamic equilibrium – Dynamic.

Transportation of Molecules. Cellular Transport Carbohydrate Chain Lipid Bilayer.

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

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

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?

Cellular Transport: movement of materials in and out of a cell  Homeostasis: combination of two words  Homeo = same  Stasis = steady  Homeostasis:

Cell Processes Transport. I. Transport Cell Membrane helps maintain homeostasis by regulating what substances enter and leave the cell.

 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)

Passive Transport Does not require The diffusion of __________

1 This is Jeopardy Cell Transport 2 Category No. 1 Category No. 2 Category No. 3 Category No. 4 Category No Final Jeopardy.

Transport Across Cell Membranes

Cellular Transport Across the Membrane

Notes: Cellular Transport

Objective: You will be able to describe the structure and function of the components of the plasma membrane. Do Now: Read, “The cell membrane” on p. 182.

3.5 Passive Transport vs. Active Transport

Cell Transport Practice quiz.

Notes: Passive Transport

Active and Passive Transport

3/31 Daily Catalyst Pg. 43 Osmosis

Diffusion and Osmosis

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

Basic Cell Structure The Cell Membrane

Cellular Physiology TRANSPORT.

CELL MEMBRANES HELP ORGANISMS MAINTAIN HOMEOSTASIS BY CONTROLLING WHAT SUBSTANCES MAY ENTER OR LEAVE THE CELLS.

Cell Membranes Practice Test

Diffusion and Osmosis.

Cellular Physiology TRANSPORT.

Cell Membranes Practice Test

Cellular Transport 7.4.

Cell Membranes Osmosis and Diffusion

They are SEMI-PERMEABLE Selectively Permeable

Movement through a Cell Membrane

S2E5: Osmosis Do This: Have Reading Qs 3.3 ready to grade

Moving Cellular Materials

Cell Processes 7th 15.2 Cell Transport.

Cell Transport Notes.

Cell Membrane 11/16/10.

Ch. 7-3 Cell Boundaries Notes.

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

Movement through a Membrane- Passive Transport

Cell Transport Chapter 7, section 3

Presentation transcript:

4/1 Daily Catalyst Pg. 44 Active Transport 1. Explain the differences between plant and animal cells and tonicity. 2. Since glucose is too big to cross the cell membrane and if water is not moving, what is another way for glucose to enter the cell?

4/1 Daily Catalyst Pg. 44 Active Transport Quiz #10 TODAY Cell and Transport test on Wednesday Review day on Tuesday M.C. on cells and transport Tutoring available Spring Break review packet due Tuesday, April 7th

4/1 Daily Catalyst Pg. 44 Active Transport Class Business Active transport notes Lab work time Quiz #10

Today, we will compare and contrast active and passive transport. 4/1 Objective Today, we will compare and contrast active and passive transport.

Passive vs. Active Transport

Passive Transport Osmosis Movement of water Passive No energy High to low Across the membrane Diffusion Movement of molecules Passive No energy High to low Across the membrane Find someone who

Label the following cells are isotonic, hypertonic, or hypotonic Find someone who 1 2 3

Passive vs. Active Transport

Active Transport Key point #1: Active Transport the movement of molecules from low to high concentration Requires ENERGY ATP

Concentration Gradient Key Point #2: The movement of molecules against the concentration gradient.

Active Transport Example: the Sodium-Potassium pump

Active Transport 2 types:

Endocytosis Key point #3: Endocytosis: EN=IN Molecules brought into the cells. EN=IN

Vesicles Molecules are brought into the cell and the membrane pinches off, creating a vesicle. Key Point #4: A vesicle is made of phospholipids

Exocytosis Key point #5: Exocytosis: Molecules exit the cell EXO=EXIT

Exocytosis The vesicle fuses with the membrane and ejects the contents to the outside of the cell.

Exocytosis and endocytosis are examples of active transport and require ATP.

Video Clip http://www.dnatube.com/video/358/Endocytosis

What type of transport? Exocytosis

What type of transport? Endocytosis

Tell me what you know? What kind of solution (hypotonic, isotonic, or hypertonic) does the cell shrink in? Hypertonic

What type of transport? Active transport

Lab Work Time Directions: With your lab group, complete day 3 instructions. Be sure to measure final mass, take observations, and record results. You will work on the charts on your own time. Time: 15 minutes Noise: 2 (with group)

Quiz #10 Directions: Silently and independently complete quiz #10. Turn your quiz into the basket and begin working on your spring break packet or lab report. Time: 10 minutes Noise: 0 (SILENT)