11th January 2012 - 6BIO1 - edexcel biology unit 1

we didnt even do the hydrogen perioxide experiment we just added trypsin to casein in test tubes, so i didn't have a clue what the apparatus was about. its out of order cuz its not even on the spec

In the book it says some questions are designed to distinguish between A and A* grade students. The hydrogen peroxide question would have been one of them...... I think it was an unfair advantage to chemistry students as this is what we study :s-smilie:

Reply 981

blue012

Original post by Granny11

shizzle i said blood clotting instead of inflammatory response :s-smilie:

yeah.

Reply 982

james.odedra

great minds think alike

Reply 983

Granny11

Original post by blue012

yeah.

sounds like i'm just losing marks left, right and centre here :frown:

Reply 984

blue012

Original post by Granny11

In the book it says some questions are designed to distinguish between A and A* grade students. The hydrogen peroxide question would have been one of them...... I think it was an unfair advantage to chemistry students as this is what we study :s-smilie:

True. We did not learn about that at all. I wrote measure the volume of oxygen and divide this by the time to work out rate (cgp book). Then us another muscle and do the same. Compare results.

Reply 985

blue012

Original post by Granny11

sounds like i'm just losing marks left, right and centre here :frown:

Dont worry. im sure you done well. We cant be sure yet

Reply 986

blue012

Original post by james.odedra

great minds think alike

Yes u said it.

Reply 987

Granny11

working out rate is defo a chemistry answer

Reply 988

blue012

Apart from enzymes i think it was mostly chemistry. ANYONE EALISED THAT THE APPARATUS IS IN THE CGP BOOK

Reply 989

blue012

It is not in the textbook

Reply 990

Granny11

I have all the Edexcel bio books except CGP :biggrin:

Reply 991

blue012

What did people write for gene therapy question about CF

Reply 992

Granny11

Original post by blue012

It is not in the textbook

it is in my chemistry textbook :wink:

Reply 993

IchHabDichLieb

i did read it once and watched a youtube video but decided to learn the one we did in class as it was simpler

Reply 994

blue012

Original post by Granny11

I have all the Edexcel bio books except CGP :biggrin:

Unlucky. I was going to remeber that typsin crap practical. Then by luck i didnt have time to take notes so i thought it wouldnt come up because we had to plan it ourselves. Then to make sure i literally read the hydrogen peroxide the day before and wrote what i learn at 12 in the night.

Reply 995

Granny11

Original post by blue012

What did people write for gene therapy question about CF

to find healthy genes which can produce a functional CFTR protein. The gene is extracted using restriction enzymes. The enzymes are also used to cut out a place in plasmid. The gene is added to the plasmid using ligase enzymes. The plasmid is then added to a vector such as a virus. Allow the virus to culture then inject into patient. The virus then infects cells to produce new cells temporarily to produce cells with have functioning CFTR proteins tehrefore leading to a less stickier mucus

Reply 996

blue012

Prenatal testing is during pregnance isnt it surely it is because amniotic fluid occurs when you are pregnant. for pigd i think i put a cross for during pregnancy and a tixk for using embryos.

Reply 997

Granny11

PIGD was before pregnancy because you're making the embryo's yourself to test them. prenatal is during pregnancy.

Reply 998

blue012

Original post by Granny11

to find healthy genes which can produce a functional CFTR protein. The gene is extracted using restriction enzymes. The enzymes are also used to cut out a place in plasmid. The gene is added to the plasmid using ligase enzymes. The plasmid is then added to a vector such as a virus. Allow the virus to culture then inject into patient. The virus then infects cells to produce new cells temporarily to produce cells with have functioning CFTR proteins tehrefore leading to a less stickier mucus

I wrote something similiar. The normal allele for the cftr protein/allele is obtaitained. This is going to be introduced into tsrget cells. the allele is inserted into a vector. For example a virus. A nebuliser is used so that the vector/allele enters the body.