Search found 10 matches

by prokaryotics
Thu Apr 15, 2010 10:11 pm
Forum: Cell Biology
Topic: 4 Functions of the Golgi Apparatus
Replies: 3
Views: 5382

4 Functions of the Golgi Apparatus

Ok the reason why im posting this is because I seriously can only think of three ;

- Glycosylation
- Protein traffiking
- Synthesis of polysaccharides such as pectin and hemicellulose

any ideas on the fourth cheers
by prokaryotics
Thu Apr 15, 2010 10:08 pm
Forum: Cell Biology
Topic: Smooth endoplasmic reticulum
Replies: 4
Views: 9031

Ah sounds good, um Smooth ER also stores Ca+ ions, could we relate something to muscular action?

And any tips on the structuring of my answer cheers
by prokaryotics
Thu Apr 15, 2010 9:48 pm
Forum: Cell Biology
Topic: Smooth endoplasmic reticulum
Replies: 4
Views: 9031

Smooth endoplasmic reticulum

Hey just been pondering over this question for a while some help would be greatly appreciated. "Under what circumstances would you expect a cell to increase the amount of its smooth endoplasmic reticulum?" So my ideas = Increase in presence of drugs/poisons as the Smooth ER has the functio...
by prokaryotics
Sat Sep 12, 2009 5:31 am
Forum: Molecular Biology
Topic: THe structure of DNA
Replies: 3
Views: 1785

hey thanks for the reply david
any suggestions on how? i was unsure to begin with that was a rather prompt guess made by me.
by prokaryotics
Sat Sep 12, 2009 4:59 am
Forum: Molecular Biology
Topic: THe structure of DNA
Replies: 3
Views: 1785

THe structure of DNA

hey this was an exam prep question and i was actually quite unsure how to answer this "How does the structure of DNA allow for different versions of the same gene" so DNA is a polymer and can cary many bases hence specify for many amino acids? and genes specify for amino acids so since it ...
by prokaryotics
Sun Jul 12, 2009 9:12 am
Forum: Genetics
Topic: Regarding Mutation
Replies: 5
Views: 8129

Re: Regarding Mutation

hey kolean, isnt trisomy a result of anueploidy and not really of translocation?

by the way to OP leukemia is a interesting concept to model knowledge on translocation, I would reccomened you look it up!
by prokaryotics
Sat Jul 11, 2009 9:21 am
Forum: Genetics
Topic: Regarding Mutation
Replies: 5
Views: 8129

Hi, translocation is a type of chromosomal mutation where a part of one non-homologus chromosome join on to another chromosome this does not occur in genes directly howver translocation disrupts genes and translocates genes as a result of occuring in a chromosomal mutation. Now, this is based on my ...
by prokaryotics
Sat Jul 11, 2009 9:13 am
Forum: Ecology
Topic: abiotic factors
Replies: 3
Views: 16310

Re: abiotic factors

AFAIK all of them do, but tide conditions seems to be the least deeming.
by prokaryotics
Sat Jul 11, 2009 9:11 am
Forum: Molecular Biology
Topic: DNA question.
Replies: 4
Views: 9274

Perfect post by kolean, in terms of hydrogen bonding adenine and thymine are linked by 2 hydrogen bonds while guanine and cytosine are linked with 3 hydrogen bonds, thus the DNA strand with the greater ratio of CG will thus have more hydrogen bonds.
by prokaryotics
Sat Jul 11, 2009 9:09 am
Forum: Molecular Biology
Topic: Enzymes and activation energy.
Replies: 5
Views: 60110

Enzymes attach to a substrate and weaken intermolecular forces within the substrate and thus weaken their bonds so the reaction takes place much quicker. As you see otherwise it would take a greater amount of time for a reaction to occur as a reaction requires the breaking of bonds (sometimes covale...