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Cellular Characteristics

Published byMeagan Elizabeth Cameron Modified over 6 years ago

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Presentation on theme: "Cellular Characteristics"— Presentation transcript:

1 Cellular Characteristics
Prokaryotes Lack a nucleus 2 Domains: Eukaryotes Posess organelles 1 Domain: 4 Kingdoms

2 Prokaryotic Cells Sizes Shapes (3 basic) Arrangements
0.5 – 2µm (average) Shapes (3 basic) Arrangements

3 Gram Positive Cell Wall
Thick peptidoglycan Teichoic acids Attachment of viruses Molecular transport

4 Gram Negative Cell Wall
Outer lipid membrane Endotoxin Periplasmic space Thin peptidoglycan Enzymes/transporters

5 Acid Fast Cell Wall Acid Fast Wall deficient Mycoplasma Some sterols

6 Cell Structures — Membrane
Plasma membrane Fluid mosaic Phospholipid bilayer Chemical movement

7 Internal Cell Structures
Cytoplasm Ribosomes 70S Nuclear region

8 Endospores Clostridium Bacillus Dipicolinic acid

9 Cell Structures — External
Flagellae Axial Filaments Pili Fimbriae

10 Cell Structures — Glycocalyx
Capsule May limit penetration of some substances Virulence factor Slime Layer

11 Eukaryotic Cells Plasma membrane Cytoplasm Nucleus Mitochondria
Chloroplasts Ribosomes Endoplasmic Reticulum

12 Eukaryotic Organelles
Golgi Apparatus Lysosomes Peroxisomes Vacuoles

13 Cytoskeleton and Motility
Flagellae Cilia Pseudopods

14 Cell Walls Fungi Plants/Algae

15 Endosymbiotic Theory Evidence: DNA in Mt and chloroplasts
70S ribosomes No mitosis Two membranes

16 Movement Across Membranes
Diffusion Osmosis Active transport

17 Endo/Exocytosis Endocytosis Exocytosis

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