Shape and Arrangements

1
Shape and Arrangements

• 1. Coccus
• 2. Diplococcus
• 3. Streptococcus
• 4. Tetrad
• 5. Staphylococcus
• 6. Sarcina

1
2
3
4
6
5
2
Shape and Arrangements
1
2
3

• 1. Bacillus
• 2. Diplobacillus
• 3. Streptobacillus

3
Shape and Arrangements

• 1. Vibrio
• 2. Spirillum
• 3. Spirochete

1
2
3
4
Modes of Respiration

• Aerobes
• Anaerobes
• Facultative Anaerobes

• Must have oxygen
• Cannot live in oxygen
• Can live with or without oxygen

5
Nutritional Needs

• Photosynthetic autotroph
• Chemosynthetic autotroph
• Saprobes
• Parasites

• Make their own food using sunlight.
• Make their own food using chemicals
• Decomposers
• Live on living things

6
Reproduction and Genetic Exchange

• Binary Fission
• Conjugation
• Transformation
• Transduction

• Bacteria copies DNA and splits into two (asexual
  reproduction).
• A donor cell contributes its DNA (via a pilli) to
  a receiver cell
• Bacteria die DNA spills into environment and is
  brought into a neighboring cell
• A virus passes the DNA from one cell to another

7
Functions of Structures.

• Structures used for holding on or for conjugation
• Controls what goes in and out
• Structure used for locomotion
• Ring of DNA found in many bacteria
• Gives support and shape
• Additional protection

• Pilli
• Cell membrane
• Flagella
• Plasmid
• Cell wall
• Capsule

8
Misc.

• Fleming
• Leeuwenhoek
• 3
• Pathogenic
• Motile

• Discovered Penicillium
• First person to see bacteria
• Number of Domains
• Term used to describe
• disease causing organisms
• Ability to move locomotion

9
Misc.

• Uses of Bacteria

• 7 Methods of Classification

• 1. Process
• A. cheese
• B. yogurt
• C. Pickles
• 2. Break down toxic substances
• 3. Extract gold
• 4. Clean up oil spills
• 5. Produce needed vitamins in humans

• Shape and arrangement
• Respiration
• Nutritional needs
• Gram Staining
• Reproduction
• Motility
• Environment

10
Bacterial Structure
Nuclear Area
3
4
Flagella
Capsule
5
Cell Wall
6
Pilli
1
2
Cell membrane