Week 2 Flashcards
(25 cards)
Escherichia
E. coli
Molecular genetics built upon
Live in guts of mammals
5 kingdoms
Protista Animalia Fungi Plantae Monera
3 domains
Bacteria
Archaea
Eukarya
3 shapes of bacteria
Cocci- spherical
Bacilli- rod shaped
Spirilla- cork screw
Gram stain
Gram positive- purple color
Gram negative- pink color and has lipopolysaccharide
How to test if starch is present
Iodine
Amylase
Enzyme secreted by bacteria
Prokaryotes
Membrane lack
No nucleus
No organelles
Heterotrophic
Obtain carbon from breakdown of organic molecules
Chemoheterotrophs
Eat other organisms
Photoheterotrophs
Light as energy
Autotrophic
Energy by eating other organisms
Photoautotrophs
Energy from sunlight
Chemoautotrophs
Inorganic compounds as energy
Bacteria
Decomposers, break down organic waste, or make nitrogen
Nitrogen fixing bacteria
Live in free soil inside root nodules
Mutualistic= beneficial for both organisms
Cyanobacteria
Blue green algae
Chlorophyll- pigment in eukaryotic algae and green plants
Phycobilins
Pigment in red algae
Carotenoids
Pigment in plants and algae
Oscillatoria
Cyanobacteria in fresh water
Archaea
Live in extreme environments
Thermophiles live in hot springs
Cows produce methanogens=archaea
Antibiotics
Chemical produced by fungi or bacteria
Treat infections
Antiseptics
Disinfectants (alcohol,Lysol) kill bacteria
Heterocysts
Fixing nitrogen
Convert nitrogen to ammonia
