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Copyright © 2010 Pearson Education, Inc. Figure 4.6 The Structure of a Prokaryotic Cell.

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Presentation on theme: "Copyright © 2010 Pearson Education, Inc. Figure 4.6 The Structure of a Prokaryotic Cell."— Presentation transcript:

1 Copyright © 2010 Pearson Education, Inc. Figure 4.6 The Structure of a Prokaryotic Cell

2 Copyright © 2010 Pearson Education, Inc. Figure 4.22a The Eukaryotic Cell

3 Copyright © 2010 Pearson Education, Inc. Table 4.2 Size comparison: Prokaryotic vs. Eukaryotic

4 Copyright © 2010 Pearson Education, Inc. Griffith’s experiments leading the way to discovering- what is the genetic (hereditary) material?

5 Copyright © 2010 Pearson Education, Inc. Griffith’s experiments leading the way to discovering- what is the genetic (hereditary) material?

6 Copyright © 2010 Pearson Education, Inc. Griffith’s experiments leading the way to discovering- what is the genetic (hereditary) material?

7 Copyright © 2010 Pearson Education, Inc. Griffith’s experiments leading the way to discovering- what is the genetic (hereditary) material?

8 Copyright © 2010 Pearson Education, Inc. Figure 4.11 Fimbriae and Pili: Made of a different protein (pilin) than flagella and are shorter, thinner, straighter. Fimbriae allow attachment: Important for some diseases (gonorrhea and E.coli 0157:H7) and biofilms.

9 Copyright © 2010 Pearson Education, Inc. Pili: Some are used for movement and others for transfer of DNA Yikes! Resistance!

10 Copyright © 2010 Pearson Education, Inc.  Linked by polypeptides Figure 4.13a Peptidoglycan

11 Copyright © 2010 Pearson Education, Inc. Gram Positive Cell Wall Many layers of peptidoglycan

12 Copyright © 2010 Pearson Education, Inc. Impetigo and Necrotizing fasciitis flesh- eating disease)

13 Copyright © 2010 Pearson Education, Inc. Figure 4.13c Gram-Negative Cell Wall

14 Copyright © 2010 Pearson Education, Inc. Gram - Sepsis

15 Copyright © 2010 Pearson Education, Inc. The Gram Stain Table 4.1 (a) Gram-Positive(b) Gram-Negative

16 Copyright © 2010 Pearson Education, Inc.  Phospholipid bilayer  Peripheral proteins  Integral proteins  Transmembrane proteins Figure 4.14b The Plasma Membrane Fig p. 90 -as viscous as olive oil

17 Copyright © 2010 Pearson Education, Inc. Figure 4.18c–e The Principle of Osmosis Fig p. 93 The movement of water across a selectively permeable membrane from an area of high water concentration to an area of lower water concentration

18 Copyright © 2010 Pearson Education, Inc. Sporulation and Germination Figure 4.21a

19 Copyright © 2010 Pearson Education, Inc. Figure 4.24a–b The Eukaryotic Nucleus

20 Copyright © 2010 Pearson Education, Inc. Organelles only found in Eukaryotic Cells  Nucleus: Contains chromosomes  ER: Transport network  Golgi complex: Membrane formation and secretion  Lysosome: Digestive enzymes  Vesicles: Membrane sacs-storage, protection, transport  Vacuole: Brings food/liquid into cells and provides support

21 Copyright © 2010 Pearson Education, Inc. Organelles only found in Eukaryotic Cells  Mitochondrion: Cellular respiration  Chloroplast: Photosynthesis  Peroxisome: Oxidation of fatty acids; destroys H 2 O 2  Centrosome: Consists of protein fibers and centrioles (Utilized for cell division)

22 Copyright © 2010 Pearson Education, Inc. Figure 10.2 Endosymbiotic Theory

23 Copyright © 2010 Pearson Education, Inc.

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