Search found 14 matches

by robotics
Fri Mar 04, 2005 5:41 am
Forum: Cell Biology
Topic: Meioisis and Mitosis
Replies: 15
Views: 49303

This is a common point of confusion for many people actually, so hopefully I can try and explain this well. It may first be helpful to identify during which situations mitosis and meiosis are used. First off, asexual organisms use mitosis to reproduce. By asexual we mean basically "cloning" - daught...
by robotics
Fri Mar 04, 2005 5:34 am
Forum: Botany Discussion
Topic: nondisjunction in plants
Replies: 4
Views: 8435

Like he said, plants have no problem at all with polyploidy, it is not at all uncommon for plants to have as much as 128 N. For a human to have such a genome is just a disaster. When botanists make generalizations they usually base it on the plant Arabidopsis thaliana, for its simple genome and shor...
by robotics
Thu Mar 03, 2005 1:26 am
Forum: Cell Biology
Topic: Golgi
Replies: 13
Views: 11355

Mitochondria is just the powerhouse of the cell. Think of it as the place where most of your ATP is made, via cellular respiration.

There's a smooth ER, and a rough ER, and as biostudent said, a rough ER is "rough" because it has ribosomes on its exterior.
by robotics
Wed Mar 02, 2005 6:03 am
Forum: Zoology Discussion
Topic: What is the smartest animal not human
Replies: 49
Views: 57879

umm, smartest not fastest. Part of being smart is knowing how to avoid predation. Some organisms do it by simply regrowing parts, as in plants. But you're right, they are different. The prong honged antelope is still very impressive. A human can go to the gym for hours every week and will won't be ...
by robotics
Wed Mar 02, 2005 6:01 am
Forum: Molecular Biology
Topic: Is ethane a carbohydrate? why or why not?
Replies: 3
Views: 7628

This is just chemistry, not really biology. Ethane is just a straight chain alkane. Alkanes are characterized by being saturated hydrocarbons, they contain only hydrogen and carbon atoms. They are saturated in the sense that they all have single bonds connecting all atoms in the compound. Additional...
by robotics
Wed Mar 02, 2005 5:57 am
Forum: Cell Biology
Topic: Golgi
Replies: 13
Views: 11355

The golgi in plants is the same as the golgi in animals, it serves the same function. You can think of it as your local post office. It takes proteins that are made after it translates mRNA, and ships them off to all the cells that need it. The golgi apparatus itself is something along the lines of ...
by robotics
Sun Feb 27, 2005 10:57 pm
Forum: Zoology Discussion
Topic: What is the smartest animal not human
Replies: 49
Views: 57879

God there are just so many possible answers it would be wrong to just pick one! One of my favorites is the pronged horned antelope. It has THE highest mitochondrial density in its metabolically active cells, far higher than a human like Lance Armstrong Yes, a cheetah can run 65 MPH, but name an anim...
by robotics
Sun Feb 27, 2005 5:46 am
Forum: Molecular Biology
Topic: ATP ASAP
Replies: 5
Views: 16693

Well, you all know that ATP is basically like having cash, it allows you to do "stuff." The thing that makes ATP a great energy source is because of its three phosphates. It isn't a stable molecule, which is why it can release a lot of energy in order to power muscle cells and do "work." The thing a...
by robotics
Sun Feb 27, 2005 5:38 am
Forum: Molecular Biology
Topic: RNA VS ENZYMES
Replies: 7
Views: 7742

I'd say at least 99 percent of all enzymes are proteins, but you're right, there are some RNA catalysts. RNA-catalyst? You mean self replicating RNA? RNA with enzymatic abilities? I don't know for the first, but for the latter, I suggest you look for Ribozymes. They are catalytic RNA, and are indeed...
by robotics
Sun Feb 27, 2005 5:34 am
Forum: Cell Biology
Topic: osmosis
Replies: 9
Views: 12678

No problem thanks for having me. :lol:
by robotics
Sun Feb 27, 2005 5:17 am
Forum: Botany Discussion
Topic: what is a absorbance spectrum?
Replies: 9
Views: 21983

Hi Darwin, I'm not actually involved with any robotics, I just happen to like the name so I stuck with it since :)
by robotics
Sat Feb 26, 2005 10:31 am
Forum: Cell Biology
Topic: osmosis
Replies: 9
Views: 12678

You can think of osmosis as a form of diffusion that involves water over a semi permeable membrane. But this it means that it allows only certain molecules to pass through the PM. The reason for increasing surface area resulting in an increase in diffusion rate is really quite simple, more contact b...