Search found 11 matches

by Hudson
Wed May 25, 2011 10:55 pm
Forum: General Discussion
Topic: topic for paper in biochem
Replies: 1
Views: 1424

topic for paper in biochem

Hello Biologists! I'm enrolled in a biochem course and I have to write a literature review/paper on a relevant topic. I want to do something exciting and interesting so I thought there was no one better to ask for opinions then you guys ! I was thinking maybe something to do with organ transplants, ...
by Hudson
Wed May 25, 2011 6:08 pm
Forum: Molecular Biology
Topic: delta G
Replies: 1
Views: 1522

delta G

Hello biologists! It's Ellie again, working away at the extra study questions for my biochem course. I'm stuck again and was hoping someone could offer some assistance. here is the question: does the value of G' (or G) tell you anything about (a) the rate at which a rxn occurs or (b) the pathway by ...
by Hudson
Wed May 25, 2011 6:01 pm
Forum: Molecular Biology
Topic: Entropy, potential energy and energy transduction
Replies: 2
Views: 5221

Entropy, potential energy and energy transduction

Hello biologists! I'm taking a college level intro to biochem course and i'm just getting starting. I have a study guide text book that I purchased, however, it only has practice questions and no answers are included!! I'm on the first chapter and I think i understand mostly everything so far, but I...
by Hudson
Tue Mar 15, 2011 6:33 pm
Forum: Cell Biology
Topic: spindle checkpoint - checkpoint signals
Replies: 0
Views: 3727

spindle checkpoint - checkpoint signals

Hello Biologists! I'm having trouble with a question. I'm hoping you can offer me some assistance. I'm taking a cell and molecular biology class online and i'm almost done! however, this question is standing in my way!! Here is the question: Two types of signals have been implicated in metaphase che...
by Hudson
Sun Mar 13, 2011 7:13 pm
Forum: Genetics
Topic: stages in the cell cycle
Replies: 1
Views: 4881

stages in the cell cycle

Hello.. It appears I'm stuck on another question. I've figured out 3/4 of it, but I can't seem to find ANYWHERE in my textbook, anything about the stages of the cell cycle and cancer. If you can help me, that would be great. Which stage or stages of the cell cycle do the following statements refer t...
by Hudson
Fri Mar 04, 2011 1:27 am
Forum: Evolution
Topic: RNA and evolution
Replies: 3
Views: 2555

RNA and evolution

Research over the past 50 years have revealed that RNA has catalytic ability, in addition to its role in protein synthesis. What does this discovery suggest in terms of evolution?
by Hudson
Fri Jan 14, 2011 7:35 am
Forum: Cell Biology
Topic: Free energy changes in metabolic reactions
Replies: 5
Views: 4753

so where do i incorporate the -2.8kcal. How do i tell what the free energy is doing?
by Hudson
Fri Jan 14, 2011 6:06 am
Forum: Cell Biology
Topic: Free energy changes in metabolic reactions
Replies: 5
Views: 4753

i think i have to use ATP + H20 ---> ADP + Pi. But I'm not even sure. ANd i'm a little confused how to plug the numbers into that.
by Hudson
Fri Jan 14, 2011 6:03 am
Forum: Cell Biology
Topic: Free energy changes in metabolic reactions
Replies: 5
Views: 4753

Free energy changes in metabolic reactions

Hello Biologists! I'm stuck on another question. I find the wording to be tricky. I think I'm kind of on the right path, but i definitely need some guidance. the delta G of the following reaction is -2.8kcal/mol acetyl phosphate + ADP <--- ---> acetate + ATP. Is the free energy difference per molecu...
by Hudson
Thu Jan 13, 2011 11:22 pm
Forum: Cell Biology
Topic: competitive inhibitors
Replies: 3
Views: 2538

competitive inhibitors

You are observing an enzyme-driven reaction. To the reaction mixture, you add a chemical, X, that inhibits the reaction. You suspect that X is a competitve inhibitor. What 2 pieces of evidence might lead you to this conculsion? I'm a little lost on this question. I compared competitive inhibitors wi...
by Hudson
Fri Jan 07, 2011 1:37 am
Forum: Cell Biology
Topic: solubility of tripeptides
Replies: 2
Views: 6794

solubility of tripeptides

Hey everyone. I'm taking a course online and my tutor is one of those guys that isn't very helpful. I'm having trouble with this question and i'm not sure where to start. How do i recognize if an amino acid or a tripeptide is soluble or not? Im not sure if theres a trick to know by looking at the na...