Search found 9 matches

by hobaoau
Mon May 14, 2007 9:48 am
Forum: General Discussion
Topic: neuron
Replies: 1
Views: 1243

neuron

Anyone know why our nervous system work?
and why Sodium ions and Potassium ions trigger the electric
by hobaoau
Mon Mar 12, 2007 6:16 am
Forum: General Discussion
Topic: variable and control
Replies: 4
Views: 3760

So how about in this case:
beetroots was placed in 3 petri dishes
1- water
2- detergent
3- acid
so identify the variables controls
by hobaoau
Sun Mar 11, 2007 10:21 pm
Forum: General Discussion
Topic: variable and control
Replies: 4
Views: 3760

variable and control

When i carried out an experiment about osmosis in plant cell, i can not distinguish variables from control. first the plant cells were placed in distilled water then the salt solution were added, the cells became flaccid then the distilled water were added, the cell go back as normal in this case wh...
by hobaoau
Fri Jan 26, 2007 3:25 am
Forum: Molecular Biology
Topic: word equation
Replies: 3
Views: 4733

Usually, people write the name of catalyst above the the arrow in the equation. I think the way people define the meaning of word equation is to write the name of the reatant and product. I will give an example like this: we have an equation: NaOH + HCl ---> NaCl + HOH Now we write it in word equati...
by hobaoau
Fri Jan 26, 2007 3:10 am
Forum: Molecular Biology
Topic: Protein-biomolecules
Replies: 4
Views: 7982

Protein-biomolecules

I'm new member. I got some questions that i have look up in some books but still can't get the clear interpretation: 1/ How does the shape of protein(a-helix, B-Sheet and random loops) affect on the functions of protein? In my opinion, i think the difference is just the shape but the sequence of ami...
by hobaoau
Wed Jan 24, 2007 9:32 am
Forum: Genetics
Topic: Immortality? Possibility?
Replies: 78
Views: 53528

We are not worry about what would happen when we were immortal. Whe should think of how can be immortal !!! some Scientists believe that outside there in the university, the existance of so-called "dark matter" will bring power to human so we could go wherever in the university and be immo...
by hobaoau
Thu Jan 18, 2007 9:23 am
Forum: Cell Biology
Topic: Secret of Egg
Replies: 6
Views: 3356

could you give a specific answer
by hobaoau
Thu Jan 18, 2007 1:36 am
Forum: Cell Biology
Topic: Cellulose-Glycogen
Replies: 11
Views: 19304

Cellulose-Glycogen

Cllulose and glycogen are different in physical properties and biological functions but they are both polysaccharides which are made of glucose monomer. But Why they have such the differences? :roll:
by hobaoau
Thu Jan 18, 2007 1:31 am
Forum: Cell Biology
Topic: Secret of Egg
Replies: 6
Views: 3356

Secret of Egg

The egg white contains globular protein albumin, when heated the liquid becomes white opaque solid, why this phenomenon occurs? :idea: :?: