Search found 10 matches

by Rainman600
Mon Mar 07, 2005 12:59 pm
Forum: Human Biology
Topic: The Salt We Eat
Replies: 2
Views: 6121

The human body requires between five and ten grams of salt a day. Humans need a daily intake of salt. Unlike other chemicals that the body requires, sodium chloride (NaCl, or common table salt), cannot be reproduced by the body. Sodium chloride is used as an electrolyte. Hormones help the body regul...
by Rainman600
Sun Mar 06, 2005 9:01 pm
Forum: Cell Biology
Topic: Size of Stem Cell?
Replies: 16
Views: 28867

Re: Size of Stem Cell?

I've looked all over the interent and can not seem to find what the size in nm a stem cell is. I am specificaly looking for the size of a stromal stem cells in adult bone marrow. The stem cells that form blood and immune cells are known as hematopoietic stem cells (HSC). A major thrust of basic HSC...
by Rainman600
Sun Mar 06, 2005 12:45 pm
Forum: Microbiology
Topic: Electricity through Bacteria
Replies: 4
Views: 7514

Do you mean "energy" instead of electricity?
by Rainman600
Sun Mar 06, 2005 5:38 am
Forum: Cell Biology
Topic: cellular respiration
Replies: 33
Views: 41879

During an intense physical effort when not enough oxygen can be transported to the muscles the Krebs cycle can not take place(it requires oxigen). However, the muscles do not stop contracting. They keep producing energy(with much less efficency though) through a process called lactic fermentation.....
by Rainman600
Sun Mar 06, 2005 5:31 am
Forum: Cell Biology
Topic: Organelle preservation
Replies: 3
Views: 3618

-196 Degrees Celcius.
by Rainman600
Sun Mar 06, 2005 5:28 am
Forum: Cell Biology
Topic: Vacuole
Replies: 23
Views: 37460

so by using the micro fibres to contract the vacuole to rid the cell of water they vacuole prevents the cell from bursting??? how then does a vacuole in a plant cell ged rid of excess water?? there is no excess water in plant cells becuase the cell walls exert equal pressure on the cell membrane - ...
by Rainman600
Sun Mar 06, 2005 5:22 am
Forum: Cell Biology
Topic: Size of Stem Cell?
Replies: 16
Views: 28867

Thenewguy wrote:Absolutely not. It will be a fraction of a blood cell in size.


What facts are you basing your assumptions on?
by Rainman600
Sat Mar 05, 2005 1:59 pm
Forum: Molecular Biology
Topic: Structure of bases and nucleotides
Replies: 6
Views: 8012

Get a formula - works everytime i.e. A+T/C+G=1 8) :?
by Rainman600
Sat Mar 05, 2005 4:40 am
Forum: Cell Biology
Topic: Size of Stem Cell?
Replies: 16
Views: 28867

Cord blood is loaded with our "stem cells" which are orgins of the body's immune and blood system and may be the origin of other organs and important systems in the body.

Could it be the size of a regular blood cell?
by Rainman600
Fri Mar 04, 2005 6:58 pm
Forum: Molecular Biology
Topic: Production of...
Replies: 10
Views: 9975

Great links Poison ! I liked the slide show best.