I can describe passive 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

Membrane Transport Cells need to move substances both in and out (of the cell) The transport of water and other types of molecules across membranes is.

Movement IN and OUT of Cells Substances move in and out through the cell membrane Moving from high to low concentration DOES NOT REQUIRE ENERGY by the.

Passive Transport: Diffusion and Osmosis

Passive Transport Section 4.1.

1 Review What happens during diffusion Explain Describe the process of osmosis Compare and Contrast What is the difference between diffusion and facilitated.

Transporting substances By Sangarun sangchachat Diffusion Diffusion is the movement of particles from an area of high concentration to an area of low.

Cell Transport Osmosis and Diffusion.  Particles in constant motion  Run into each other and randomly spread out  Particles move from an area of high.

Facilitated Diffusion Active Transport

PASSIVE TRANSPORT Movement of molecules across a membrane that requires no energy and always occurs down a concentration gradient Types of passive transport.

Cellular Transport Test Review. What does this picture represent??

Cell Transport How molecules move in and out of a cell.

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

The Cell Membrane and Passive Transport The Cell Membrane made of two phospholipid layers made of two phospholipid layers The cell membrane has two major.

Aim: How can we compare active and passive transport?

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

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.

Materials move across membranes because of concentration differences.

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

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

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?

Diffusion: What is the tendency of all molecules? What causes this tendency?

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

Passive Transport Does not require The diffusion of __________

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

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

Notes: Cellular Transport

Cell membranes are composed of two phospholipid layers.

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.

“Salad” Notes Movement of molecules in and out of the cell

Diffusion and Osmosis

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

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

Movement across the Plasma Membrane

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

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

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

CELLS AND THEIR ENVIRONMENTS

Chapter 3.4 Diffusion and Osmosis

The student is expected to: 4B investigate and explain cellular processes, including homeostasis, energy conversions, transport of molecules, and synthesis.

Cell Membranes Practice Test

Diffusion and Osmosis.

Cell Membranes Practice Test

BIOLOGY Unit 2 Notes: Cell Membrane Transport

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

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

TYPES OF TRANSPORT.

The student is expected to: 4B investigate and explain cellular processes, including homeostasis, energy conversions, transport of molecules, and synthesis.

Cell membranes are composed of two phospholipid layers.

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

3.4 Diffusion and Osmosis 1. Cells are the basic unit of life.

Cellular Transport 7.4.

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

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

Cell Membranes Osmosis and Diffusion

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

Week 3 Vocab Definitions

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

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

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

2 types of passive transport

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

Cell Transport Unit 4.

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

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

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

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

Passive and Active Transport

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

Presentation transcript:

I can describe passive transport. I can distinguish between osmosis, diffusion, and facilitated transport.

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

3.4 Diffusion and Osmosis Passive transport does not require energy input from a cell. Molecules can move across the cell membrane through passive transport. There are two types of passive transport. diffusion osmosis

3.4 Diffusion and Osmosis Diffusion and osmosis are types of passive transport. Molecules diffuse down a concentration gradient.

3.4 Diffusion and Osmosis Diffusion and osmosis are types of passive transport. Osmosis is the diffusion of water molecules across a semipermeable membrane.

3.4 Diffusion and Osmosis Diffusion and osmosis are types of passive transport. There are three types of solutions. isotonic hypertonic hypotonic

3.4 Diffusion and Osmosis Some molecules can only diffuse through transport proteins. Some molecules cannot easily diffuse across the cell membrane. Facilitated diffusion is diffusion through transport proteins. Facilitate means “to make easier” or “to help”

What will happen to a houseplant if you water it with salt water (a hypertonic solution)? Explain why transport proteins are needed in the cell membrane. When a person becomes dehydrated due to the loss of fluids and solutes, saline solution (water and salts) is infused into the bloodstream by medical personnel. Why is saline solution used instead of pure water?