Bacteria. Nutrition Shapes Reproduction Growth Beneficial Structure.

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Presentation transcript:

Bacteria

Nutrition Shapes Reproduction Growth Beneficial Structure

Nutrition Producer (Autotroph)

Photosynthetic (sunlight) Chemosynthetic (energy from rxns)

Nutrition Producer (Autotroph) Consumer (hetertropic)

Saprophytic (decay, recycling C,N,P Parasitic (need host, cause harm)

Nutrition Producer (Autotroph) Consumer (hetertropic)

Shapes Rod Round Spiral

Reproduction Asexual

Binary fission

Clones Mutation

Antibiotic resistance

Binary fission Clones Mutation

Asexual Binary fission

Reproduction Asexual Sexual

Conjugation

Reproduction Asexual Sexual Endospore

Resistant phase

Reproduction Asexual Sexual Endospore

Growth Factors

Temperature pH Oxygen Concentration

Aerobic Anaerobic Facultative Obligate

Factors Temperature pH Oxygen Concentration External solute concentraton (osmosis) Pressure

Growth Factors Food Processing

Bioprocessing

Continous flow- remove products, e.g. yoghurts Batch flow - empty/refil e.g. antibiotics

Food Processing Bioprocessing

Growth Factors Food Processing Growth curve

Lag phase Log phase Stationary phase Survial phase Death phase

Growth Factors Food Processing Growth curve Agar

Preparation Sterilisation Pouring plates Inoculation Incubation

Growth Factors Food Processing Growth curve Agar

Beneficial Harmful

Food spoilage Pathogen (cause disease)

TB Whooping cough Typhoid Cholera

Harmful Food spoilage Pathogen (cause disease)

Beneficial Harmful Beneficial

Genetic Engineering

Insulin Drugs Alcohol Vitamins

Beneficial Genetic Engineering Cheese, yoghurt Symbiosis

Vitamin K N-fixing

Beneficial Genetic Engineering Cheese, yoghurt Symbiosis Recycling Antibiotics

Beneficial Harmful Beneficial

Structure Flagella maybe present No organelles

Mitochondria Chloroplast

Structure Flagella maybe present No organelles Plasmid Circular DNA No nucleus (prokaryote) Cell wall Single cell