Search found 5720 matches

by MrMistery
Sat Jan 02, 2010 4:38 pm
Forum: Botany Discussion
Topic: HELP!
Replies: 7
Views: 4597

hint: we plant trees to clean up the air from greenhouse gases :)
by MrMistery
Sat Jan 02, 2010 4:37 pm
Forum: Microbiology
Topic: antibiotic research
Replies: 9
Views: 7059

people have tried to create designer antibiotics, just like they have tried to create other designer drugs by looking at the structure of the target enzyme. Unfortunately, so far, rational drug design just doesn't work. Unfortunately now most drugs are not made from natural compounds anymore, they a...
by MrMistery
Sat Jan 02, 2010 4:32 pm
Forum: Human Biology
Topic: Skin Perspiration + Heart Rate.
Replies: 13
Views: 8126

they could, but they are hard to control in a scientific investigation: same music affects different people differently. Most people find Schubert awesome, I think he's boring and makes me fall asleep.
by MrMistery
Sat Jan 02, 2010 4:30 pm
Forum: Human Biology
Topic: What the hell is a FACTOR??!!
Replies: 2
Views: 2347

back in the days people named things "factors" because they had no idea what they actually were chemically. Some of the names have stuck, even though nowadays we know what they are - for example the factors in blood clotting are proteins
by MrMistery
Sat Jan 02, 2010 4:16 pm
Forum: Cell Biology
Topic: The Golgi apparatus and ribosome
Replies: 2
Views: 2924

when you are asked questions like these you need to remember that everything in nature, from an organelle to your liver, has evolved to do something. Your liver has a structure that allows it to carry out its many functions. just like that, a ribosome has a structure that evolved to do protein synth...
by MrMistery
Tue Dec 29, 2009 10:28 pm
Forum: Biology Movies
Topic: http://www.beyondbiology.org
Replies: 8
Views: 25469

please linkback to us
by MrMistery
Mon Dec 28, 2009 7:53 am
Forum: Cell Biology
Topic: Which metalloenzyme is most found in mitochondria?
Replies: 6
Views: 4121

scratch that, the ATP synthase also has Mg. I still think there is more of the Cu ones though. that uniprot link doesn't have Mg unfortunately
by MrMistery
Mon Dec 28, 2009 7:51 am
Forum: Cell Biology
Topic: Which metalloenzyme is most found in mitochondria?
Replies: 6
Views: 4121

well yeah, DNA polymerases and RNA polymerases have Mg ions, but in the mitochondria the respiratory enzymes outnumber all other proteins by far. So yeah, Fe probably leads as it is found in both those Fe-S centers of Riske proteins but also in the Fe-Cu centers. Cu are only in the Fe-Cu centers. No...
by MrMistery
Thu Dec 24, 2009 11:18 pm
Forum: Human Biology
Topic: Skin Perspiration + Heart Rate.
Replies: 13
Views: 8126

also caffeine for heart rate.
by MrMistery
Thu Dec 24, 2009 10:36 pm
Forum: Cell Biology
Topic: Which metalloenzyme is most found in mitochondria?
Replies: 6
Views: 4121

It's actually Fe. But also Cu: cytochrome oxidase has a Fe-Cu bimetallic center. I don't know of any mitochondrial enzymes with Mg, Cd or Zn.
by MrMistery
Sun Dec 20, 2009 7:28 pm
Forum: Human Biology
Topic: Race and sound of voice.
Replies: 6
Views: 12736

Race is not a biological concept, more of a social one. There are hardly any "pure-race" people in the civilized world, and a US Census bureau survey showed that something like 30% of people changed their race over 3 years, which is really funny.
by MrMistery
Sun Dec 20, 2009 3:51 pm
Forum: Cell Biology
Topic: Site specific recombination
Replies: 2
Views: 2072

plasma cells are effector B cells. After a B cell gets stimulated by an antigen it can differentiate either into a memory B cell or into an antibody-producing effector B cell (plasma cell). The name of plasma cell comes from the older days of electron microscopy when people were just using TEMs to l...