BIOLOGY PAPER 22

[Z.S.M]

yeah i knw that but there is no way out

Yes there is.
Trust yourself.
Tell yourself you can do it.
ummm....... listen to some motivational sports songs for half an hour. get back to study then.

 

[Omar Hosny]

Guys, in the vaccine question, I wrote children were vaccinated as the antigen was given in weakened alive form stimulated immune responce and the other children didn't suffer it because the others were immune .. The phagocytes and the human cell question I wrote "Bacteria secret toxins that attract the phagocytes, they don't have protien receptors complimentary to our antigens.. Why bact can live in phagocytes ? I wrote they secret enzymes that break phagocytic vessicles... HGS I wrote gene mutation forming HGS with low affinity and RBC will be sickled and cresent.. correct ?

 

[xtremeforums]

Guys, in the vaccine question, I wrote children were vaccinated as the antigen was given in weakened alive form stimulated immune responce and the other children didn't suffer it because the others were immune .. The phagocytes and the human cell question I wrote "Bacteria secret toxins that attract the phagocytes, they don't have protien receptors complimentary to our antigens.. Why bact can live in phagocytes ? I wrote they secret enzymes that break phagocytic vessicles... HGS I wrote gene mutation forming HGS with low affinity and RBC will be sickled and cresent.. correct ?

vaccine: i wrote that the children have a better diet rich in proteins etc, so stronger immune system... and availability of drugs worlwide, proper usage of drugs,maintain good sanitary conditions, good hygiene..
For the phagocyte question, i wrote that the cell suraface antigens on the bacteria are non-self so generate an immune response...
Bacteria living in phagocytes, i wrote that they release substances that inhibit the hydrolitic enzymes released by lysosomes..

 

[xtremeforums]

Because it was a carnivore, i'd say it was secondary.

Secondary consumer, or tertiary trophic level both should be correct I THINK.
Because when ur looking at the trophic level, u also count the producer as the first trophic level.
And when looking at the consumers... Herbivores are primary consumers...
So I hope both are correct... I wrote tertiary trophic level ​

 

[xtremeforums]

What did you all write for "DNA as a stable molecule?"

 

[Omar Hosny]

vaccine: i wrote that the children have a better diet rich in proteins etc, so stronger immune system... and availability of drugs worlwide, proper usage of drugs,maintain good sanitary conditions, good hygiene..
For the phagocyte question, i wrote that the cell suraface antigens on the bacteria are non-self so generate an immune response...
Bacteria living in phagocytes, i wrote that they release substances that inhibit the hydrolitic enzymes released by lysosomes..

vaccine: i wrote that the children have a better diet rich in proteins etc, so stronger immune system... and availability of drugs worlwide, proper usage of drugs,maintain good sanitary conditions, good hygiene..
For the phagocyte question, i wrote that the cell suraface antigens on the bacteria are non-self so generate an immune response...
Bacteria living in phagocytes, i wrote that they release substances that inhibit the hydrolitic enzymes released by lysosomes..

Bacteria living in phagocytes, didn't he say suggest ? what do you think of my answer?

 

[Omar Hosny]

What did you all write for "DNA as a stable molecule?"

Double helix with many H-bonds

 

[xtremeforums]

Bacteria living in phagocytes, didn't he say suggest ? what do you think of my answer?

Its the same idea as mine... I hope they are both correct!

 

[xtremeforums]

Double helix with many H-bonds

I wrote about DNA replication, and complementary base pairing... so an exact copy of DNA is produced... thus stable? i guess that's wrong

 

[Omar Hosny]

I wrote about DNA replication, and complementary base pairing... so an exact copy of DNA is produced... thus stable? i guess that's wrong

Replication I think you got a mark.. the DNA is "code carrier" as they carry nitrgenous bases which are the codes coding for prt formation as each 3 bases code for 1 aa

 

[xtremeforums]

Replication I think you got a mark.. the DNA is "code carrier" as they carry nitrgenous bases which are the codes coding for prt formation as each 3 bases code for 1 aa

Are you talking about the next part? "carrier of codes?" i wrote that answer for the first part, "DNA as stable molecule."

 

[Omar Hosny]

what did you write then in that question?

 

[xtremeforums]

what did you write then in that question?

Carrier of codes?
i wrote about transcription, and production of an mRNA molecule, that codes for proteins on ribosomes...

 

[Omar Hosny]

Carrier of codes?
i wrote about transcription, and production of an mRNA molecule, that codes for proteins on ribosomes...

I don't know

 

[Omar Hosny]

Curve predictions in paper 2?

 

[zergham8]

thnx

 

[xtremeforums]

46/60 for an A probably..
The paper wasn't that hard neither was it that lengthy...
I ddnt do that good though... I hope the curve is lower

 

[LimeReem]

46/60 for an A probably..
The paper wasn't that hard neither was it that lengthy...
I ddnt do that good though... I hope the curve is lower

that's actually too high. its probably 41/60 or 40/60 for an A. hahaha lets just hope the curve is actually really low indeed =D

 

[Xx_EMINEM_xX]

actually I have recorded every Grade Threshold from 2001 to June 2012, November is always has lower curve than June and Second variant paper (22) is always lower than others by 2-3 marks and sometimes by 5 Marks.. but I also hope that the curve will be low, Just relax and pray

 

[Zuhair Rayyes]

i guess 40/60 for A

omg, that would be great