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Plant and Animal Cell Structures

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Presentation on theme: "Plant and Animal Cell Structures"— Presentation transcript:

1 Plant and Animal Cell Structures
Chapter 7 Cellular Structure and Function 7.3 Structures and Organelles Plant and Animal Cell Structures Animal Cell Plant Cell

2 7.3 Structures and Organelles
Chapter 7 Cellular Structure and Function 7.3 Structures and Organelles

3 7.3 Structures and Organelles
Chapter 7 Cellular Structure and Function 7.3 Structures and Organelles

4 Short, numerous projections that look like hairs
Chapter 7 Cellular Structure and Function 7.3 Structures and Organelles Cilia Short, numerous projections that look like hairs 400x Flagella Longer and less numerous than cilia Create movement with a whiplike motion 26,367x

5 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

6 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

7 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.

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

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

10 Channel Proteins Carrier Proteins 7.4 Cellular Transport Chapter 7
Cellular Structure and Function 7.4 Cellular Transport Channel Proteins Carrier Proteins

11 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

12 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

13 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

14 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

15 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

16 Types of Active Transport Pumps
Chapter 7 Cellular Structure and Function 7.4 Cellular Transport Types of Active Transport Pumps Na+/K+ ATPase pump Moves three Na+ ions out of the cell and two K+ ions into the cell

17 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


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