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| Prokaryotes |
Hello
everybody! I haven't post any entry for a quite long time, isn't? My
new semester has just started, I think I'm still in “lazy mode”
because of the longggggggg semester break previously. 3 months break
and now I have to face all the tasks and assignments, I can't manage
my time very well yet (I just made this entry because Dr. Wan keep
asking us about the e-Portfolio, hehe sorry Dr..)
So
let's start! Prokaryotes can be divided into 2 domains which are
BACTERIA and ARCHAEA. Basically, prokaryotes are organisms that lack
of cell nucleus, membrane-bounded organelles, they are unicellular (a
few prokaryotes have multicellular stages in their life cycles. The
largest division of bacteria is Proteobacteria and they can be either
Gram +ve or Gram -ve.
Besides,
archaea are extremophiles and most of them can be found in extreme
conditions such as area with high concentration of salt or very high
temperature. Archaea can be classified into Euryarchaeota or
Crenarchaeota. The examples of archaea are Pyrolobus and
Halobacterium.
