Hi

We started our class with playing a game or quiz I can say. There are 10 questions. And my group, group 10 got 5 correct hehe. Well, out of 10 question, I actually can recall only question, I mean 1 complete question. It is, ‘What is the name of reversible reaction of oxidation and reduction?’ I think it sounds like that but whatever it is, the answer is redox reaction.

And then, Nuaim, Radin, Malik and Syafiq made a presentation on green sulfur bacteria (Chlorobium), green non-sulfur bacteria (Chloroflexus), purple sulfur bacteria (Chromatium) and purple non-sulfur bacteria (Rhodobacteria) and cyanobacteria.

Cyanobacteria – aquatic, bluish pigment, contain chlorophyll a, photoautotroph.

Chromatium – anaerobic, chlorophyll a and b, they need oxygen to live but they can only live in low content of oxygen.

Rhodobacter – can only tolerate small concentration of sulfur

Chlorobium – need sulphide to grow, use H2S, inorganic molecules and H2 as electron donors.

Chloroflexus – photoeteritroph, found in hot spring

Actually the presentation was longer than these, but these are the things that I could catch up at that time hehe.

Okay that’s all!