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Movement of particles across the cell membrane without using energy

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Presentation on theme: "Movement of particles across the cell membrane without using energy"— Presentation transcript:

1 Movement of particles across the cell membrane without using energy
Chapter 7 Cellular Structure and Function 7.4 Cellular Transport Passive Transport Movement of particles across the cell membrane without using energy Three Modes of Passive Transport Diffusion Facilitated Diffusion Osmosis

2 Chapter 7 Cellular Structure and Function 7.4 Cellular Transport Diffusion Movement of particles from an area of high concentration to an area of lower concentration Initial Conditions Diffusion Low High High Low

3 Diffusion is controlled by
Chapter 7 Cellular Structure and Function 7.4 Cellular Transport Diffusion is controlled by Temperature Pressure Concentration Dynamic Equilibrium Reached when diffusion of material into the cell equals diffusion of material out of the cell Molecules continue to move, but the overall concentration remains the same.

4 Diffusion in a Cell 7.4 Cellular Transport Chapter 7
Cellular Structure and Function 7.4 Cellular Transport Diffusion in a Cell

5 Facilitated Diffusion
Chapter 7 Cellular Structure and Function 7.4 Cellular Transport Facilitated Diffusion Movement of materials across the plasma membrane using proteins

6 Channel Proteins Carrier Proteins 7.4 Cellular Transport Chapter 7
Cellular Structure and Function 7.4 Cellular Transport Channel Proteins Carrier Proteins Diffusion, Channel Proteins, and Carrier Proteins

7 Diffusion of water across a selectively permeable membrane
Chapter 7 Cellular Structure and Function 7.4 Cellular Transport Osmosis Diffusion of water across a selectively permeable membrane Three Types of Solutions Isotonic Hypotonic Hypertonic Isotonic Solutions, Hypotonic Solutions, Hypertonic Solutions

8 Chapter 7 Cellular Structure and Function 7.4 Cellular Transport Isotonic Solution Water and dissolved substances diffuse into and out of the cell at the same rate. Plant Cell Blood Cell 11,397x

9 Solute concentration is higher inside the cell.
Chapter 7 Cellular Structure and Function 7.4 Cellular Transport Hypotonic Solution Solute concentration is higher inside the cell. Water diffuses into the cell. Plant Cell Blood Cell 13,000x

10 Solute concentration is higher outside the cell.
Chapter 7 Cellular Structure and Function 7.4 Cellular Transport Hypertonic Solution Solute concentration is higher outside the cell. Water diffuses out of the cell. Plant Cell Blood Cell 13,000x

11 Active Transport Using Carrier Proteins
Chapter 7 Cellular Structure and Function 7.4 Cellular Transport Active Transport Movement of particles across the cell membrane using energy Active Transport Using Carrier Proteins

12 Process by which the cell surrounds and takes particles into the cell
Chapter 7 Cellular Structure and Function 7.4 Cellular Transport Endocytosis Process by which the cell surrounds and takes particles into the cell Exocytosis Secretion of material out of the plasma membrane

13 Section 1 Vocabulary cell cell theory plasma membrane prokaryotic cell
Chapter 7 Cellular Structure and Function Vocabulary Section 1 cell cell theory plasma membrane prokaryotic cell eukaryotic cell organelle nucleus

14 Section 2 Vocabulary selective permeability phospholipid bilayer
Chapter 7 Cellular Structure and Function Vocabulary Section 2 selective permeability phospholipid bilayer transport protein fluid mosaic model

15 Section 3 Vocabulary cytoplasm cytoskeleton ribosome nucleolus
Chapter 7 Cellular Structure and Function Vocabulary Section 3 cytoplasm cytoskeleton ribosome nucleolus endoplasmic reticulum (ER) Golgi apparatus vacuole lysosome centriole mitochondrion chloroplast cell wall cilium flagellum

16 Section 4 Vocabulary diffusion dynamic equilibrium
Chapter 7 Cellular Structure and Function Vocabulary Section 4 diffusion dynamic equilibrium facilitated diffusion osmosis isotonic solution hypotonic solution hypertonic solution active transport endocytosis exocytosis

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