AS BIOLOGY P-33

[Moi]

two friends of mine had the same issue. their results weren't matching with the rest of us. so they asked the lab people to check their solutions and it turned out that there was a labelling mistake, and that any 1 solution was repeated, from what i understand.

Thank God, they agreed to write a statement for the two girls to explain the situation..

What??? dang am i supposed to tell my teacher abt that?? coz i dont think she knew that mine would be repeated!

but thx sooo much for clearing it up!

 

[abdul arham]

yes go 2 skool and write a report from ur teacher that would
be mailed to CAMBRIDGE TEACHER SUPPORT

 

[Moi]

i got 48:20 and you ?????????????????????

igot 62:48 :/

 

[abdul arham]

hmmmm

 

[hassan110]

nah..just the diagram..

 

[Moi]

What??? dang am i supposed to tell my teacher abt that?? coz i dont think she knew that mine would be repeated!

but thx sooo much for clearing it up!

yes go 2 skool and write a report from ur teacher that would
be mailed to CAMBRIDGE TEACHER SUPPORT

but guys...if one was repeated..wouldnt i get two solutuions with the same result?? i tried all solutuions with all tests...S1 didnt work with iodine nor reducing sugar. so it couldnt have bee starch or glucose. and not sucrose coz i did non reducing sugar test....i thought mine is still right coz after test 3 (on paper) in the results its written (the_____ solution has ___ biological molecule OR the solutuion_____doesnt have any of the following biological molecules starch glucose sucrose)...so maybe its correct??

 

[ICTloverz]

Same

spot on bro ! and starch hydrolysed !

answers man!!!..

 

[abdul arham]

yes its true that at my centre one of 2-3 friends of mine also got this anser

 

[tanixx]

igot 62:48 :/

i left that part due to lack of time
my friend got 30:100

 

[Cesar_malik]

i got 48:20 and you ?????????????????????

I got something same but rounded it to 2:1 in the ans

 

[Cesar_malik]

whoever made the p33 guess i love you man

and is there going to be a guess paper for chemistry and physics? also, what did you guys get, did it hydrolyze starch or sucrose? mine hydrolyzed sucrose :/

I think i got the same
One of the solution had both glucose and reducing sugar but thats just always true since reducing sugar will not be affected by any non reducing test one had starch and i think the enzyme was sucrase since mine hydrolyzed sucrose

 

[Jinkglex]

Mine was too! see i knew i wasnt crazy mine was hydrolysing S1 and that had sucrose in it, so that was the only part making any sense to me

 

[zaccy zac]

ryt!

 

[IGCSEstudent2012]

biological molecules was a complete mess. me and another girl got answer completely different to the rest for the whole enzyme exp.!!

bio 31? please brief me what this ques was like?

 

[IGCSEstudent2012]

Do read these. A quick review. What the examiner wants. Look at the precautions and errors if any.
Practical 1 - Investigation into size and scale of microscopic tissues -
Practical 2 - Microscopic observation of cells and tissues -
Practical 3 - The identification of biological chemicals present in solutions.

do you have a review like that of AS chemistry?? pls share if can

 

[Jinkglex]

Guys it appears there been a big mix up, some people had results hydrolysing sucrose, some had results hydrolysing starch :s

Mine personally, was hydrolysis of S1, and it couldnt be wrong because i did it like 3 times >_< wth!

And only one biological molecule could be present with each test-tube, but it could be repeated. e.g s1 and s2 both glucose, s3 starch, etc, but never more then 1 molecule in each.

What do we do now about the mix-up? I really don't think my teacher is going to pay any attention to my request -_-

 

[stareaj]

Does anyone know wats coming in 34 chemplssstell asap please inbox me or smthibg please
Guesses anyone?????

 

[Jinkglex]

This is for Biology P33 stareaj, post a thread or look in the other threads.

 

[Rozy]

This is for Biology P33 stareaj, post a thread or look in the other threads.

posting here doesn't hurt anyone, jingles

 

[xxfarhaxx]

the paper went gud! Alhamduillah!