Biology; Chemistry; Physics: Post your doubts here!

[funky brat]

something looks wrong

I think it is.
The composition might differ from bacterium to bacterium. That term is what my teacher told me whereas I read the composition in the book.

 

[Faizan Muhammmad]

I think it is.
The composition might differ from bacterium to bacterium. That term is what my teacher told me whereas I read the composition in the book.

I meant how can glucose and glycogen be considered fats

 

[funky brat]

I meant how can glucose and glycogen be considered fats

I know. It can't be. He might have written this without thinking. Peptdoiglycon is the term my teacher used but I read that it is made of glucose, lipids and proteins, that's what I said.

 

[Faizan Muhammmad]

I know. It can't be. He might have written this without thinking. Peptdoiglycon is the term my teacher used but I read that it is made of glucose, lipids and proteins, that's what I said.

lipids and proteins are confirm but glucose is the problem
it is a difusible soluble thing, its like making a house of sugar
glycogen is a pretty compact molecule for storage, but that is it
cellulose is the correct one

 

[Awesome12]

Check this out from a Chemistry paper (2011) I found:

 

[funky brat]

Check this out from a Chemistry paper (2011) I found:

View attachment 40639

View attachment 40640 View attachment 40641

Anything can come in the paper. We are doomed.

 

[funky brat]

GUYS WHOEVER FINDS SOMETHING UNUSUAL, POST IT HERE. WE ALL MIGHT NOT BE ABLE TO GO THROUGH ALL THE PAPERS.

 

[Faizan Muhammmad]

Anything can come in the paper. We are doomed.

The good thing is we can write anything too
And long live the percentile

 

[Awesome12]

GUYS WHOEVER FINDS SOMETHING UNUSUAL, POST IT HERE. WE ALL MIGHT NOT BE ABLE TO GO THROUGH ALL THE PAPERS.

It depends on the people; some of them might be strong at a specific sub, and not find anything unusual. However, a different person may find something hard in it

 

[funky brat]

It depends on the people; some of them might be strong at a specific sub, and not find anything unusual. However, a different person may find something hard in it

But even if you know everything, you do realise what's tricky and what not.

 

[Faizan Muhammmad]

But even if you know everything, you do realise what's tricky and what not.

oh come on you dont need 100% for a distinction even
and about 5-6 marks in every subject are going to irritate us, there is no helping that
what is a good thing is that at the end most tricky questions are solved using common sense
sort of like riddles

 

[funky brat]

oh come on you dont need 100% for a distinction even
and about 5-6 marks in every subject are going to irritate us, there is no helping that
what is a good thing is that at the end most tricky questions are solved using common sense
sort of like riddles

I was just saying because I haven't practiced the last 10 years all variants like you.

 

[Faizan Muhammmad]

I was just saying because I haven't practiced the last 10 years all variants like you.

who told you that ?
The practice can be very helpful but concepts are first priority

 

[Faizan Muhammmad]

Stats was my first exam, practiced 20 years papers, didnt make a bit of a difference in paper
except I made a mistake nobody else did
From then concepts all the way

 

[funky brat]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s10_qp_41.pdf
In question 1(g), can't we say that the case of the kettle might become alive and the child can get an electric shock therefore it is not sensible to touch it?

 

[funky brat]

Stats was my first exam, practiced 20 years papers, didnt make a bit of a difference in paper
except I made a mistake nobody else did
From then concepts all the way

Papers do make a difference for me. I don't read question carefully and everytime I make a mistake because of this, I tell myself not to do this in the paper.

 

[funky brat]

What is a trundle wheel? :/

 

[Awesome12]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s10_qp_41.pdf
In question 1(g), can't we say that the case of the kettle might become alive and the child can get an electric shock therefore it is not sensible to touch it?

No no no you can't say that
The metal casing is only made live when it does not have an Earth wire. Accordingly, when the live wire touches the metal case, large amounts of current flow. The fuse blows disconnecting the ciruict, and the charges go away through the Earth Wire. Thus it is made safe to touch

 

[FLRNAB]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s10_qp_41.pdf
In question 1(g), can't we say that the case of the kettle might become alive and the child can get an electric shock therefore it is not sensible to touch it?

That is a correct reason. From MS:

This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of
the examination. It shows the basis on which Examiners were instructed to award marks. It does not
indicate the details of the discussions that took place at an Examiners’ meeting before marking began,
which would have considered the acceptability of alternative answers.

Also another reason comes to mind is that you can spill some liquid out thus making the readings inconsistent.

 

[asadalam]

What is a trundle wheel? :/