AS Biology paper 22 May 13th 2013

[plantaholic]

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

the very last page, the very last qestion. there was a table, and we had to number the sequence of heart activities during myogenic stimulation

 

[plantaholic]

Nai, we both are wrong.. check Google.. denaturation never occurs at low temp.. enzyme is inactive, that is why it stopped working completely.. :'(

but they said k it was permanently denatured, and did not regain activity at reaching optimum temps.. i have read about permanent denaturation at high temps, never this.
i wrote randomly about the structure being changed etc.. which sounded dumb actually

 

[plantaholic]

The 1st sugar was maltose, the 2nd trehalose, the 3rd cellobiose the 4th sucrose.
In the epidemiological question, you had to say something to the effect of that when the number of smokers increases, the number of TB cases reported also increases.

i just quoted the first two bullet points for the epedimiological evidence..

 

[plantaholic]

1- For the disaccharides...i got
A-Cellobaise (wtvr the name is) ---> two beta glucose
B-Maltose --->Two Alpha Glucose
C-Trehalos (or sucrose)
D- Sucrose (or Trehalos)

2-What is the actual size in the magnification question?
i got it 5 !!

3-why canser cells have extra mitochondrea and RER?
i made up my answer saying that it needed mauch energy for reproduction and protien synthesis to spread out (Things along the line)

Someone Correct me!

i wrote the same for 3

 

[sushisidhu]

Guys I talked to my teacher and she said Trehalose was the first, sucrose last. I can't remember the rest. Does anyone remember all the questions? I'm trying to retrace my steps.

1 Diffrence between Meosis and Mitosis
2 Benefits of light microscope
3 How xylem structure relates to function
4 Antibiotics question
5 Epidemiological Q
6 Effect of tobacco smoke
7 2 cures of CHD
8 Bio Molecules Q
9 Number the control of heartbeat
10 Why muscle of left ventricle is bigger
11 Enzyme in cold conditions

Am I forgetting anything (not in order btw)

Also I'm detecting a kind of trend with the science subjects (I do all three) they have been setting one weird or hard paper for each science but the rest should be doable/ easy.

 

[maronamaro]

i just quoted the first two bullet points for the epedimiological evidence..

What were those points ??
please tell !

 

[tanixx]

Guys I talked to my teacher and she said Trehalose was the first, sucrose last. I can't remember the rest. Does anyone remember all the questions? I'm trying to retrace my steps.

1 Diffrence between Meosis and Mitosis
2 Benefits of light microscope
3 How xylem structure relates to function
4 Antibiotics question
5 Epidemiological Q
6 Effect of tobacco smoke
7 2 cures of CHD
8 Bio Molecules Q
9 Number the control of heartbeat
10 Why muscle of left ventricle is bigger
11 Enzyme in cold conditions

Am I forgetting anything (not in order btw)

Also I'm detecting a kind of trend with the science subjects (I do all three) they have been setting one weird or hard paper for each science but the rest should be doable/ easy.

13 micro meter length of orginal specimen

 

[tanixx]

Guys I talked to my teacher and she said Trehalose was the first, sucrose last. I can't remember the rest. Does anyone remember all the questions? I'm trying to retrace my steps.

1 Diffrence between Meosis and Mitosis
2 Benefits of light microscope
3 How xylem structure relates to function
4 Antibiotics question
5 Epidemiological Q
6 Effect of tobacco smoke
7 2 cures of CHD
8 Bio Molecules Q
9 Number the control of heartbeat
10 Why muscle of left ventricle is bigger
11 Enzyme in cold conditions

Am I forgetting anything (not in order btw)

Also I'm detecting a kind of trend with the science subjects (I do all three) they have been setting one weird or hard paper for each science but the rest should be doable/ easy.

also difference between transcription and replication

 

[Muddy]

ALSO. VACCINES ARE ARTIFICIAL PASSIVE OR ARTIFICIAL ACTIVE?

They are artificial active ..

 

[Malik777]

What you think would be the threshold for /22 ? :S
50 ? Isn't it?

 

[rabos1]

What you think would be the threshold for /22 ? :S

50 ? Isn't it?

If its 50, then I'm failing bio for sure, because I made HUGE blunders. My bio paper was horrible.. it was easy though my fault!

 

[shah zaib]

What you think would be the threshold for /22 ? :S
50 ? Isn't it?

50 ? :O you got to be kidding me. i think it'll be 42-44.

 

[Malik777]

50 ? :O you got to be kidding me. i think it'll be 42-44.

If its 50, then I'm failing bio for sure, because I made HUGE blunders. My bio paper was horrible.. it was easy though my fault!

yup It would be around 50 because paper was too much easy and repeat Well I'll also get around 40

 

[beeloooo]

40-45 range max yaar

 

[Malik777]

40-45 range max yaar

Hope So But It was easier than many previous papers :/

 

[AsadZaidi]

Hope So But It was easier than many previous papers :/

wasnt that easy.. would b about 42-45

 

[plantaholic]

wasnt that easy.. would b about 42-45

i think it was easy, but the chances of marks penalization is all the more high because of it.
i feel that although i knew the answers pretty well, the expression of these might not have been that good

 

[Jinkglex]

I highly doubt the grade threshold will EVER come up to 50. Maximum 43, IMHO.

 

[Malik777]

wasnt that easy.. would b about 42-45

AsadZaidi
Hope so! But If it would be 45 then Mine B Is confirmed

 

[Rommarrooo]

What was the answer to the cell membrane question? Its role?