Physics, Chemistry and Biology: Post your doubts here!

[Heba A.Moety]

are u talking about paper 3 or 6 so ican send those qustions

paper 3
a question like this

 

[ahmed butt]

tips for A* in chemistry and physics

 

[fatimah zain]

can somebody please help me out with this ? asap . Thanks in advance

 

[princess sofia]

can somebody please help me out with this ? asap . Thanks in advance

the most effective is the E
thx is cze the most distance at which the bacteria have been killed is around E , so E is most effective in killing bacteria

 

[fatimah zain]

the most effective is the E
thx is cze the most distance at which the bacteria have been killed is around E , so E is most effective in killing bacteria

Thank you Baji can I ask one more question ?

 

[fatimah zain]

what about this ? princess sofia

 

[Awesome12]

what about this ? princess sofia

As e can see the percentage of protein and fats in flesh is much higher than that in plants. In flesh, it is also quite a high percentage. thus in order to satisfy its needs, it has to feed on more and more plants, whereas the carnivore can easily obtain it from the herbivore

 

[fatimah zain]

As e can see the percentage of protein and fats in flesh is much higher than that in plants. In flesh, it is also quite a high percentage. thus in order to satisfy its needs, it has to feed on more and more plants, whereas the carnivore can easily obtain it from the herbivore

Thank you so much

 

[princess sofia]

what about this ? princess sofia

in mouth saliva is secreted which contain amylase enzymes , as u can c , green plants contain more carbohydrates than flesh so more time is required to break down carbohydrates into dissachrides when green leaves r consumed

 

[Thought blocker]

I saw this thread for the first time. *Guessed*
Well, I am good at math P1 and Physics, ask or tag me if any quarries.

 

[Awesome12]

I saw this thread for the first time. *Guessed*
Well, I am good at math P1 and Physics, ask or tag me if any quarries.

Are you a from a governmental mining association?
It is queries rather than quarries

 

[Thought blocker]

Are you a from a governmental mining association?
It is queries rather than quarries

i suck at English. I am zero.

 

[princess sofia]

what is da effect of high and low blood pressure on kidneys ?

 

[Heba A.Moety]

paper 3
a question like this
View attachment 40546

some help plzzz!!!

 

[ahmed butt]

tips for physics

 

[ahmed butt]

tips for chemistry

 

[Thought blocker]

tips for physics

tips for chemistry

Keep all chapters concepts clear, your base should be marvelous.
Be thorough with all the definitions, tests, colour of flame, Equations.
If you are lacking somewhere, visit www.khanacademy.org or post your doubts here, we'll surely help you.
Last but not least, Study hard.

 

[Hania El-Khodary]

Where can I find IGCSE chemistry old past papers from 1986 to 2001? any help?

 

[My Name]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Biology (0610)/0610_s11_qp_61.pdf
Question 1 part c (i)
its like a sequence question LOL
i used akgebra they said to show working
this is wat i did
x-12=60 so x=72 for 4 mins
y-12=72 so y=78 for 5 mins
is this acceptable?

part c(iii)
Why in ms it says to ignore temp and ph referrence
bcuz i wrote that all enzymes mght not have been provided with the same temp

part d
i wrote disk of filterpaper shud hav same amount of saliva on them
make sure thckness of paper is uniform

BUT these are not there in the ms ! so igot 1 mark for this question

Question 2 (a)
labels??
and a good answer for c(ii) which can score full marks becuz the on ei wrote wud give me only 2 marks i guess
Question 3(b) ans ez 1 plz btw is it ok if i dont mention xlyem!?

MR ♣♠ Magnanimous ♣♠
thanks

 

[My Name]

can somebody please help me out with this ? asap . Thanks in advance

E -becuz u can see the clear area which means less bacteria there in other words antibiotic affected more