Presentation is loading. Please wait.

Presentation is loading. Please wait.

Click on a lesson name to select. Chapter 7 Cellular Structure and Function Section 1: Cell Discovery and Theory Section 2: The Plasma Membrane Section.

Similar presentations


Presentation on theme: "Click on a lesson name to select. Chapter 7 Cellular Structure and Function Section 1: Cell Discovery and Theory Section 2: The Plasma Membrane Section."— Presentation transcript:

1

2 Click on a lesson name to select. Chapter 7 Cellular Structure and Function Section 1: Cell Discovery and Theory Section 2: The Plasma Membrane Section 3: Structures and Organelles Section 4: Cellular Transport

3 The Cell Theory All organisms are composed of one or more cells. 7.1 Cell Discovery and Theory Cellular Structure and Function cell is the basic unit of structure and organization of organisms. Chapter 7 All cells come from preexisting cells.

4 Cellular Structure and Function Light Microscopes use a series of glass lenses and light to magnify an image Magnifies images up to 1,000x the actual size 7.1 Cell Discovery and Theory Chapter 7

5 Electron Microscopes Cellular Structure and Function Uses magnets to aim a beam of electrons at a cell to produce an image Microscopy Links Magnifies images up to 500,000x the actual size 9560x 7.1 Cell Discovery and Theory Chapter 7

6 Prokaryotic Cell Simple structure Cellular Structure and Function Contains a plasma membrane Does not contain membrane-bound organelles 11,000x 7.1 Cell Discovery and Theory Chapter 7

7 Eukaryotic Cell More complex structure Cellular Structure and Function Contains a plasma membrane Contains membrane- bound organelles 400x 7.1 Cell Discovery and Theory Chapter 7

8 Plasma Membrane Thin, flexible boundary between the cell and its environment 7.2 The Plasma Membrane Cellular Structure and Function Allows nutrients into the cell Allows waste to leave the cell Chapter 7

9 Selective Permeability Cellular Structure and Function Plasma membrane controls movement of substances into and out of the cell. Also controls the amount of a substance entering and leaving the cell 7.2 The Plasma Membrane Chapter 7

10 Plasma membrane is made of the phospholipid bilayer. Cellular Structure and Function A phospholipid molecule is composed of a glycerol backbone, two fatty acid chains, and a phosphate group. 7.2 The Plasma Membrane Chapter 7

11 Fluid Mosaic Model Cellular Structure and Function Phospholipid bilayer allows other molecules to float in the membrane. Other Components Proteins Cholesterol Carbohydrates 7.2 The Plasma Membrane Chapter 7

12 Proteins Cellular Structure and Function Transmit signals inside the cell Act as a support structure Provide pathways for substances to enter and leave 7.2 The Plasma Membrane Chapter 7

13 Cholesterol Cellular Structure and Function Prevents fatty acid tails from sticking together 7.2 The Plasma Membrane Chapter 7

14 Carbohydrates Cellular Structure and Function Identify chemical signals 7.2 The Plasma Membrane Chapter 7

15 Cellular Structure and Function Chapter 7


Download ppt "Click on a lesson name to select. Chapter 7 Cellular Structure and Function Section 1: Cell Discovery and Theory Section 2: The Plasma Membrane Section."

Similar presentations


Ads by Google