Cells Flashcards
(46 cards)
What does Prokaryotic mean?
Before the nucleus
What is older, prokaryotic or Eukaryotic
Prokaryotic, the first life to evolve
What are Pili?
Small hairs on the outside of a prokaryotic cell, help it stick to surfaces and substrates.
What allows a prokaryotic cell to move?
The flagellum or flagella, tail like appendage that moves
What replaces the nucleus in a prokaryotic cell?
The Genophone, the single chromosome. Circle.
What is the capsule in a prokaryotic cell made off?
Polysaccharide
What are the two types of Prokaryotic cells?
Archaea
Bacteria
What are the subcategories of Archaea?
Methogens
Halophiles
Thermophiles
Where can you find Methogens?
Found in bogs, deepsols, marine and freshwater sediments, intestinal tracks and in sewerage treatment plants.
They’re anaerobic, meaning they don’t use oxygen.
What do Methogens use as Energy?
Use Hydrogen to produce Methane (CH4)
Where are Halophiles found?
Found in high salt areas, such as salt lakes
All aerobic
What do Halophiles have instead of chloroplast?
Red pigment called Bacteriorhodopsin, makes energy without needing oxygen.
What turns Flamingo’s pink?
The bacteriorhodopsin on brine shrimp.
Where do you find Thermophiles?
In high temperature and high sulphur areas, such as deep sea vents and volcanic areas.
What are the primary producers of energy into the deep sea?
Thermophiles
What is a chemoautotroph?
Something that feeds itself with chemicals. Such as Thermophiles feeding themselves with Sulphur.
What are 5 different groups of bacteria?
Coccus
Bacillus
Vibrio
Spirillim
Spirochete
Green bacteria
Purple bacteria
Cyanobacteria
What colour does gram positive bacteria become?
Purple
What does gram positive mean?
Contains lots of peptidoglycan, goes purple in the presence of gram strain, has thick walls.
What does it mean when a bacteria encounters a gram strain and turns Pink?
Gram negative, has a thin wall, some peptidoglycan, lots of lipopolysaccharide.
Which is pink, gram positive or gram negative?
Gram negative
What is the current name for blue green algae?
Cyanobacteria
What is the blue pigment in cyanobacteria called?
Phycoyanin
Why is mass Cyanobacteria dangerous?
Some produce toxins and when they multiply rapidly, they can poison waterways.
Can cause putridification in mass dying.