Biology Unit 5 17th June 6BIO5

[Choco<3]

i wrote the presynaptic and post synaptic and vesicles and release eugenol which cause chlorine atoms to be released and axon membrane is impermeable to sodium ions hence the inside is hyperpolarised so no depolarisation and no action potential trigerred

Where did chlorine come from??

 

[Mahmood Magdy]

Where did chlorine come from??

i remember seeing a question like that in a mark scheme before and it had chlorine so i wrote it hope it is correct

 

[enz123]

i remember seeing a question like that in a mark scheme before and it had chlorine so i wrote it hope it is correct

The question was on eugenol and how it affects calcium ions movement, what you are talking about happens with a neurotransmitter which causes an inhibitory response, but for that to happen calcium ions still have to move in the presynaptic membrane. Eugenol causes a decrease in calcium ion movement in the Pre synaptic membrane.

 

[Choco<3]

The question was on eugenol and how it affects calcium ions movement, what you are talking about happens with a neurotransmitter which causes an inhibitory response, but for that to happen calcium ions still have to move in the presynaptic membrane. Eugenol causes a decrease in calcium ion movement in the Pre synaptic membrane.

Thts right.

 

[Mahmood Magdy]

The question was on eugenol and how it affects calcium ions movement, what you are talking about happens with a neurotransmitter which causes an inhibitory response, but for that to happen calcium ions still have to move in the presynaptic membrane. Eugenol causes a decrease in calcium ion movement in the Pre synaptic membrane.

so what is the answer?

 

[Choco<3]

i remember seeing a question like that in a mark scheme before and it had chlorine so i wrote it hope it is correct

U were right initially...u might get 3-4 marks

 

[enz123]

Calcium ion movement in the presynaptic membrane is decreased or inhibited, thus less neurotransmitter released, bla,bla,bla, less likely for action potential to occur in post synaptic membrane.

so what is the answer?

 

[Mahmood Magdy]

Calcium ion movement in the presynaptic membrane is decreased or inhibited, thus less neurotransmitter released, bla,bla,bla, less likely for action potential to occur in post synaptic membrane.

thats exactly what i wrote i only added the part about chlorine

 

[enz123]

thats exactly what i wrote i only added the part about chlorine

Then you'll definitely get all the marks

 

[Shah...]

the ppr was easy...so get ready,,cuz the grade boundaries r gonna b extremely high...the examiners dont want to see us happy..remember that..

 

[Choco<3]

the ppr was easy...so get ready,,cuz the grade boundaries r gonna b extremely high...the examiners dont want to see us happy..remember that..

O yeah! Thts wht I've been thinking..

 

[Zifa]

It doesn't move.-_-..

Well then im losing a mark there!! :/

 

[Choco<3]

Well then im losing a mark there!! :/

How was bio4 ?? Do u remember?? I'm trying to recall but i cant..-_-

 

[Alexandra_Lin]

i found it quite good as well

 

[Choco<3]

i found it quite good as well

Do remember any questions?? Can u plz recall cox i really cant...and i need to make an estimate for the grade am gonna get..

 

[Shah...]

Do remember any questions?? Can u plz recall cox i really cant...and i need to make an estimate for the grade am gonna get..

u talkin about unit 4??

 

[Zifa]

How was bio4 ?? Do u remember?? I'm trying to recall but i cant..-_-

Really long..i hated question 7 abt emzymes n HIV i was struggling to finish!

 

[Choco<3]

u talkin about unit 4??

Yup..

 

[Choco<3]

Really long..i hated question 7 abt emzymes n HIV i was struggling to finish!

Same here..

 

[Choco<3]

Really long..i hated question 7 abt emzymes n HIV i was struggling to finish!

Wht were the subparts of question 7 n HIv. Jst a little..cant recall.-_- ...