Monera Flashcards
What are bacteria also known as
Prokaryotes
Three bacterial shapes
Rod (bacillus)
Spherical (cocci)
Spiral (spirillum)
What do rod bacteria cause
Anthrax
What do spherical bacteria cause
Pneumonia
What do spiral bacteria cause
Syphillis
How do bacteria reproduce
By binary fission, asexually.
Evolve by
Mutating
What are endospores
Tough-walled spores, can withstand harsh conditions.
Two types of nutrition
Autotrophic-make own food
Heterotrophic-take in food
Autotrophic categories
Photosynthetic bacteria
Chemosynthetic bacteria-use energy from chemical reactions to make food
Heterotrophic categories
Saprophytic-feed from a dead source
Parasitic-feeding from a live host.
Factors affecting bacterial growth
Temperature pH Oxygen concentration External solute concentration Pressure
Aerobic bacteria
Use oxygen for respiration
Anaerobic bacteria
Don’t use oxygen for respiration
Economic benefits of bacteria
Manufacture of dairy products eg milk and cheese
The production of drugs and insulin.