POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

[Abu mota]

Assalam-o-alaikum wr wb...

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it is a non-metal, u have a stair case down the boron and one the right of this stair case u have nonmetals and on the left u have the metals and so the answer is C

 

[L-Girl]

THEY ARE NOT TISSUES !

are u sure?

 

[сᴏᴏʟ сяуѕтᴀʟѕ]

it is a non-metal, u have a stair case down the boron and one the right of this stair case u have nonmetals and on the left u have the metals and so the answer is C

okie..Jazakallah Khair

 

[сᴏᴏʟ сяуѕтᴀʟѕ]

are u sure?

yeahp..i agree with Rahma Abdelrahman

 

[Abu mota]

bio and variant 1

it is A because it is recessive so in order for the parents to have it they must homozygous recessive and so it is impossible to get a normal child u can draw a punnet square using small a for everything and u will find that all of the offspring genotype is aa. if u dont understand ask again

 

[Rahma Abdelrahman]

Nooo It says A

I thought you meant Chemistry!

 

[Rahma Abdelrahman]

are u sure?

YES !

 

[Lujain M.]

it is A because it is recessive so in order for the parents to have it they must homozygous recessive and so it is impossible to get a normal child u can draw a punnet square using small a for everything and u will find that all of the offspring genotype is aa. if u dont understand ask again

alrighhtt...got it.. THANK YOU

 

[L-Girl]

yeahp..i agree with Rahma Abdelrahman

THANK YOU BOTH

 

[Ahmed Khider]

They are organs!

I dont think they are organs Compare them with kidneys and liver...they dont seem like organs to me

 

[princessanum]

Aoa wr wb,
could someone pls clear ma doubt...
Q16
http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Chemistry (0620)/0620_s10_qp_11.pdf

 

[ZainH]

Aoa wr wb,
could someone pls clear ma doubt...
Q16
http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Chemistry (0620)/0620_s10_qp_11.pdf

By looking at the graph you should be able to tell that the rate of reaction Q was faster then P.
So take a look at your options, it can't be that a catalyst was added in P as that would make P faster.
Temperature would also increase the rate of reaction P so B) is also not correct.
If bigger marble chips were used in Q, then the surface area would be less causing it to be SLOWER then P, so C) isn't correct.
D) says that Q was more concentrated which makes sense, as the rate of reaction increases with concentration.

Hope I helped x)

 

[Rahma Abdelrahman]

I dont think they are organs Compare them with kidneys and liver...they dont seem like organs to me

i'm sure they are!

 

[ZainH]

Question 17: http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Biology (0610)/0610_s09_qp_1.pdf

Don't phloem vessels transport sucrose+amino acids... how is the answer B) ?

 

[сᴏᴏʟ сяуѕтᴀʟѕ]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Chemistry (0620)/0620_s06_qp_1.pdf
question 11. THANK YOU IN ADVANCE.

Assalam-o-alaikum wr wb...
2 is the cathode...copper is lower in the series so it will be discharged at the cathode i.e cathode will be electroplated...

on electrode 1...Oxygen will be liberated...on electrode 3 chlorine and on electrode 4 Hydrogen will be liberated...
so the answer is C, 2 only!

 

[сᴏᴏʟ сяуѕтᴀʟѕ]

Question 17: http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Biology (0610)/0610_s09_qp_1.pdf

Don't phloem vessels transport sucrose+amino acids... how is the answer B) ?

yeahp...they do!
the question is what wil be lacking in their diet?
in phloem tubes they wil get both amino acid and sucrose..and some amount of water too! the only thing missing in a plant is 'fat' so the answer is B

 

[ZainH]

yeahp...they do!
the question is what wil be lacking in their diet?
in phloem tubes they wil get both amino acid and sucrose..and some amount of water too! the only thing missing in a plant is 'fat' so the answer is B

Ah I misunderstood the question, thanks a lot!
Also same paper , question 29. Could you explain why the answer is C?

 

[Ahmed Khider]

i'm sure they are!

Well i dnt think they are..how about ask other people to c if they r organs or not??

 

[svenas]

yeahp...they do!
the question is what wil be lacking in their diet?
in phloem tubes they wil get both amino acid and sucrose..and some amount of water too! the only thing missing in a plant is 'fat' so the answer is B

http://ww
could u plz help me in this very very hard question: q11,,http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Chemistry (0620)/0620_w07_qp_1.pdf
thanks!

 

[сᴏᴏʟ сяуѕтᴀʟѕ]

Ah I misunderstood the question, thanks a lot!
Also same paper , question 29. Could you explain why the answer is C?

sure
Well...this is bcoz there are more purple fruit than yellow fruit...if you count them they are approx in the ratio 3:1
how can you get this ratio? by crossing 2 Heterozygous plants...i.e Pp x Pp

if still did not understand...feel free to ask