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AS Biology paper 22 May 13th 2013

How did it go?

  • It was easy.

    Votes: 21 25.3%
  • It was OK.

    Votes: 45 54.2%
  • It was BAD.

    Votes: 17 20.5%

  • Total voters
    83
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yea i gave 22 vari ..... i didnt see this ques :O .....question kia tha :O ....kis page pr tha and kis baray main tha ....plzz tell me :(
Well like i said we had to number the stages of heart beat and then tell why left side is thicker then the right [Ventricles].
 
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Artificial Active.
ALSO. VACCINES ARE ARTIFICIAL PASSIVE OR ARTIFICIAL ACTIVE?

Differences between replication and transcription, just to be sure. I didnt do many pastpapers, so rattay huay nahi thay answer.
Everyones were different, mine were that the product is DNA and mRNA, the product stays in nucleus [DNA] or leaves [mRNA], and whereas replication only involves AD, THY, CYT, GUA, transcription also has URA in it.
 
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Ah good enough. Chalo, Inshallah sahi marks ajayenge. Depends on how i do in P4 really. Thankyou for the answers.
 
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kis question k baad tha ??????

q1 was about mitosis and all that
q2 was about xylem
q3 was about tb
q4 was about enzymes
q5 was dna replication ,mutation etc

i didnt see the heart question :O
 
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yaar kitnay marks ka tha ......last page was blank and i saw that ........
pura question tha aur it was a subpart...............

there was a part of CHD treatment and i did that but idk about this ventricle stufff :mad:
 
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That made no sense o_O. Explain?

And the surface antigens one was so annoying because of such little space -_- it was basically that vaccine exposes the body to one kind of antigen and if the disease carrier changes his antigens then its effectively a new disease as B lymphocytes are specific, so primary response must be repeated, making the vaccine a waste.

I wrote antigen binding site or receptor site is specific to antigen.. blah blah.
Vaccine ka I wrote artificial passive.
 
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yaar kitnay marks ka tha ......last page was blank and i saw that ........
pura question tha aur it was a subpart...............

there was a part of CHD treatment and i did that but idk about this ventricle stufff :mad:

Bhai CHD was a seperate question, the one relating to how doctors treated the disease. calm down, im sure you'll do fine, focus on other papers instead of worrying over this one.
 
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yaar kitnay marks ka tha ......last page was blank and i saw that ........
pura question tha aur it was a subpart...............

there was a part of CHD treatment and i did that but idk about this ventricle stufff :mad:

Exactly, hogaya hai ub. Faida nai hai mood kharab karnay ka. For the next papers, just remember to go through all of it before hand. Inshallah fit marks ayengay sab ke.
 
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Bhai CHD was a seperate question, the one relating to how doctors treated the disease. calm down, im sure you'll do fine, focus on other papers instead of worrying over this one.
wo ventricles wala usi page pr tha question ?????

already i have so many marks and now ....:cry:
 
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That made no sense o_O. Explain?

And the surface antigens one was so annoying because of such little space -_- it was basically that vaccine exposes the body to one kind of antigen and if the disease carrier changes his antigens then its effectively a new disease as B lymphocytes are specific, so primary response must be repeated, making the vaccine a waste.

Nai, we both are wrong.. check Google.. denaturation never occurs at low temp.. enzyme is inactive, that is why it stopped working completely.. :'(
 
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Yes the enzyme is inactive, but we had to describe why it was inactive. There wasnt really any other viable definition coming to mind considering he said the enzymes never worked even when returned to their normal working temperatures. We were only taught one definition in the syllabus, that of normal denaturation. I dont think low temp inactivity applies here because we can recover from that
Nai, we both are wrong.. check Google.. denaturation never occurs at low temp.. enzyme is inactive, that is why it stopped working completely.. :'(
 
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