Chapter 4 prokaryotic profiles micro 1

Micro 1 Chapter 4: Prokaryotic Cells & Microorganisms

Three Domains 2 main types of cells: prokaryotic & eukaryotic

Characteristics of Prokaryotic cells ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Size difference… Rod shaped bacteria and leukocytes (white blood cells)

Bacterial shapes & arrangements Cocci 1000x Streptococci 1000x Staphylococci 1000x Bacilli 1000x Streptobacilli 1000x Diplococci 2000x Vibrio 1000x Spirilli 1000x Spirochetes 2000x Shape & arrangement of bacteria is determined by heredity .

Coccus ( pl. cocci) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Baccillus ( pl. Bacilli ) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Diplobacilli streptobacilli

Spirillum (pl. spirilla) & Spirochetes ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Mycoplasmas – Cell wall deficient Two mycoplasma bacterial cells

Flagella (singular: flagellum) ,[object Object],[object Object],[object Object],[object Object]

Bacterial Motility ,[object Object],[object Object],[object Object],[object Object],Semi-solid test media

Fimbriae & Pili ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Glycocalyx- Slime Layers & Capsules ,[object Object],[object Object],[object Object]

Glycocalyx- Slime Layers & Capsules ,[object Object],[object Object],[object Object],[object Object],Capsules look like halos around the bacterial cell

Cell Wall ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Composition of Cell Walls ,[object Object],[object Object],[object Object],[object Object]

Gram-positive cell wall ,[object Object],[object Object]

Gram (-) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Gram positive & gram negative cell wall: Overview One thick layer of peptidoglycan Has outer and inner membrane with peptidoglycan wall sandwiched between GRAM + GRAM -

Periplasmic space ,[object Object]

Plasma membrane ,[object Object],[object Object],[object Object]

Functions of plasma membrane ,[object Object],[object Object],[object Object],[object Object]

Diffusion ,[object Object],[object Object],[object Object]

Facilitated Diffusion ,[object Object],[object Object]

Active Transport ,[object Object],This is overview of 3 types of transport for substances through the plasma membrane.

Osmosis- special case of diffusion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Osmosis Animated tutorial Another tutorial with quiz

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Osmosis tutorial

What environment are these cells submerged in? Hypotonic, hypertonic or isotonic? ________________ _______________ ______________

Cytoplasm ,[object Object],[object Object]

Nucleoid ,[object Object],[object Object],[object Object],[object Object],[object Object]

Plasmids ,[object Object],[object Object],[object Object],[object Object],[object Object]

Ribosomes ,[object Object],[object Object],[object Object]

Inclusions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Endospores ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Germination: process of “awakening” or leaving the spore state & becoming a vegetative cell. ,[object Object],[object Object],[object Object]

Test Yourself! ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Chapter 4 prokaryotic profiles micro 1

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