Topic 3 Archaea Flashcards
What make archaea and bacteria the same and different
They look alike but DNA diffieriantes them
What domain had the first methogens ?
Archaea
Are there archea humanal pathogens
No
Why are archaea elite
Bc they love extreme inhospitable places to live
What 3 type of extreme needs do some archaea need to grow
Extreme temp
Acid
Concetration
What is archaea usual size
0.5 - 5 micro meters similar to bacteria
What are the 6 shapes archaea like to have ?
Rods
Spherical
Spiral
Pleomorphic
Sqaures
Rectangles
What type of chromsome and does the archaea nucleaus have a membrane bound nucleus
Its a circular chromosomes and no memebrane
What type of inclusion bodies do archaea have
Gas vesicles fror sqaure bouyancy
What differentiate archaeal histones ?
That it is in a tetramer formation histons and the dna wrapped around is 60 nucleotiide pair
What is unique about the archael cyto skeleton
That homolomgs are found in other domains
What is the the actin homolog in the cytoskeleton called
TA0583
Do all yarchaea have a plasma membrane ?
Yes
Most have cell wall but not all have outer membranes
What is the cell envelope of archaea made up of
Plasma membrane and cell wall sometimes out membrane
What makes archaea’s plasma membrane special?
It has a unique bi layer
What three things differentiates archael membrane than to bac and euk
It has a phytanal chain
Glycerol on different carbon( gylceral -1 - phosphate
Ether linkages
What are the benefits of ether linkages ?
They are more stable at higher temps