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

Slides:

Advertisements

Similar presentations

Moving Cellular Materials

Advertisements

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

Cells and Their Environment

Cellular Transport.

Transport across the cell membrane Active Transport Active Transport – requires energy in the form of ATP (Na+K+ pump, endocytosis & exocytosis) Passive.

Cell Theory O Three Parts O All living things are made up of one or more cells O Cells are the basic units of structure and function O All cells arise.

Chapter 4 Cells and Their Environment

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

Structure and Function

Passive and Active Transport

Cells and Their Environment

Movement of particles across the cell membrane without using energy

Homeostasis and Transport

Homeostasis and Cell Transport

Cellular Transport 7.4. Diffusion Baking cookies aroma Baking cookies aroma Particles in G, L, S are in constant motion Particles in G, L, S are in constant.

Homeostasis & Transport. Section 1: Diffusion & Osmosis.

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.

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

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

Types of Transport The various ways in which particles move in and out of cells!

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

Active Transport Section 4.2. Movement Against a Concentration Gradient  The transport of a substance across the cell membrane against its concentration.

Part 3: Homeostasis and Cell Transport (Chapter 5)

CELL TRANSPORT pp Passive transport: Movement across the cell membrane without energy.

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.

Chapter 4 Cells and Their Environment. Passive Transport Reminders: Phospholipid bi-layer, ATP, and proteins on bilayer. Passive transport: is the movement.

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.

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.

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

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

Keystone Review Passive Transport 1.A – ATP is a source of energy, and facilitated diffusion does not require the input of energy. 2.B – Facilitated diffusion.

Cell transport 7.3. Key Questions 1.What is passive transport? 2.What is active transport?

Biology Jeopardy Ch 4 Review yippyGot itYepokaywhyyikes

Passive Transport Does not require The diffusion of __________

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

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

Notes: Cellular Transport

Structure and Function

Movement Across a Membrane A Review

Movement Across a Membrane A Review

Membrane Transport.

Section 4 Cellular Transport

7.3 Cell Structure Cell Transport Movement of materials

Diffusion and Osmosis

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

PASSIVE AND ACTIVE TRANSPORT IN CELLS

Movement across the Plasma Membrane

CELLS AND THEIR ENVIRONMENTS

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?

Types of Cellular Transport

Cellular Transportation

How is the idea of equilibrium related to the cell membrane?

Cellular Transport Unit

Transport Across the Cell Membrane

Movement of particles across the cell membrane without using energy

3.5 Active Transport, Endocytosis, and Exocytosis

Cell Processes 7th 15.2 Cell Transport.

Chapter 7 Cellular Structure and Function

Movement Across the Membrane

BELLWORK What are the three organelles that only plants have?

Passive Cell Transport

Cells and Their Environment

Types of Transport.

Movement of particles across the cell membrane without using energy

Movement Through the Cell Membrane

Presentation transcript:

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

2 Main Types of Transport 1. Passive Transport “down hill” 2. Active Transport “up hill”

Passive Transport a. no energy requirement b. Caused by random movement of molecules c. Molecules move with the concentration gradient

Concentration Gradient difference in the concentration of a substance across a space

Examples of Passive Transport Diffusion molecules move from high concentration to low concentration

Equilibrium balance of molecules on both sides of membrane

Examples of Passive Transport Osmosis - diffusion of water Ion Channels- charged molecules moved across membrane by proteins

Examples of Passive Transport Facilitated Diffusion- molecules moved across membrane by carrier proteins

Active Transport a. Requires Energy (ATP) b. Molecules move from areas of low concentration to areas of high concentration c. Molecules move against the concentration gradient

Examples of Active Transport Carrier Protein Pumps Movement of molecules by vesicles

Carrier Protein Pumps- pump ions across membrane Sodium/Potassium Pump - Ion exchange - Na + moved out / K + moved in - K + moved out / Na + moved in

Movement by vesicles Vesicles form Move molecules across the membrane

Movement by vesicles Endocytosis - into a cell

Movement by vesicles Exocytosis – out of a cell

Passive vs. Active Transport