A level Biology: Post your doubts here!

[A*****]

It's Art

Lol it's funny!

 

[Hisham Khan]

Lol it's funny!

I remember those time when I used to fial every class and no one used to give a damn

 

[A*****]

Can you help me with this View attachment 64105

Why don't u post it in physics thread?

 

[A*****]

Can you help me with this View attachment 64105

 

[princess of cricket]

plz explain how to callibrate . its topic of biology a levels . plz any one has easy steps to explain me plz reply here

 

[A*****]

plz explain how to callibrate . its topic of biology a levels . plz any one has easy steps to explain me plz reply here

What calibrate? Eyepiece graticule?

 

[princess of cricket]

What calibrate? Eyepiece graticule?

Eye piece graticule.

 

[jojo199]

PLS CAN ANYONE GIVE ME THE PDF OF THIS BOOK

 

[studyingrobot457]

Couldn't find the book, but found a revision guide instead
https://web.archive.org/web/20180324093139/https://gceguide.com/Books/AS%20and%20A%20Level%20BioRevision%20Guide%20second%20edition.pdf

 

[A*****]

View attachment 64306


PLS CAN ANYONE GIVE ME THE PDF OF THIS BOOK

Books were available at gceguide.com a few days back...does any one know that why are they removed??

 

[studyingrobot457]

Books were available at gceguide.com a few days back...does any one know that why are they removed??

I think they were receiving copyright claims frequently,

Anyhow, to access them, u simply go to the wayback machine site (this site will show u an older version of any site) and access the books at a time before they were removed
Thank me later, the captain has to fly

 

[hamadh]

could somebody please tell me why amp hydrolysis releases less energy than hyrolysis of atp or adp, with reference to bonds?

 

[potatocorn12]

could somebody please tell me why amp hydrolysis releases less energy than hyrolysis of atp or adp, with reference to bonds?

because in amp the phosphate is bonded to adenosine,the bond is stable and it isnt a high energy bond while in adp and atp, phosphate is bonded to the phosphate next to it,this bond is less stable and it is considered a high-energy bond. Hence energy released from atp and adp is the same but amp's one is lesser.

 

[potatocorn12]

View attachment 64306


PLS CAN ANYONE GIVE ME THE PDF OF THIS BOOK

YES PLEASEEEEEEEEEEEEEEEEEE
i cant find it anywhere on the internet

 

[A*****]

YES PLEASEEEEEEEEEEEEEEEEEE
i cant find it anywhere on the internet

Here is the solution

I think they were receiving copyright claims frequently,

Anyhow, to access them, u simply go to the wayback machine site (this site will show u an older version of any site) and access the books at a time before they were removed
Thank me later, the captain has to fly

 

[hamadh]

because in amp the phosphate is bonded to adenosine,the bond is stable and it isnt a high energy bond while in adp and atp, phosphate is bonded to the phosphate next to it,this bond is less stable and it is considered a high-energy bond. Hence energy released from atp and adp is the same but amp's one is lesser.

thank you so much but i am a little confused. how can we call a bond stable and high energy at the same time?

 

[Horsey]

Hey.. can anyone help with A2 biology p5? whats the pattern and how to solve it? and what exactly do we need to study for p5?

 

[Ayesha_m8]

guys can someone explain me how auxin promotes growth by elongation....???

 

[Bibek333]

Hi everyone, I found some examinations questions' responses on biologyref.blogspot.com It contains few questions but the answers are easy to understand. Have a look at it.

 

[desterman]

Hello, does anyone know where to get pdf of book like
A Level Biology Paper 1 Topical with Answr 2002-2017
please? Not just for paper 1 but also 2 and 4