A level Biology: Post your doubts here!

[SohaibButt]

Watch first 33 seconds.This is me

Have u upload ur gameplay on youtube?

 

[Hisham Khan]

Thanks alott but what about the substrate binding to the active site even though non competitive inhibitor alters active site so substrate cannot bind.

Non-competitive inhibition models a system where the inhibitor and the substrate may both be bound to the enzyme at any given time. When both the substrate and the inhibitor are bound, the enzyme-substrate-inhibitor complex cannot form product and can only be converted back to the enzyme-substrate complex or the enzyme-inhibitor complex.

 

[Hisham Khan]

Have u upload ur gameplay on youtube?

I'm joking that''s not me but I'm just as good haha

 

[Hisham Khan]

I'm joking that''s not me but I'm just as good haha

Used to be in top 2% players in whole world.Rnka are bronze silver gold plat diamond Master and GM. I was Master

 

[SohaibButt]

Used to be in top 2% players in whole world.Rnka are bronze silver gold plat diamond Master and GM. I was Master

Wow that's awesome have u end this game?

 

[Hisham Khan]

Wow that's awesome have u end this game?

Wdym by end.This is a online competitve esports game like overwatch.
I stopped playing because of A-levels.I was addicted to this game haha.
I was silver at first but I got so good with practice and learned the game in so depth that people used to be scared when they saw me ...

 

[Kanekii]

Wdym by end.This is a online competitve esports game like overwatch.
I stopped playing because of A-levels.I was addicted to this game haha.
I was silver at first but I got so good with practice and learned the game in so depth that people used to be scared when they saw me ...

Idk why but this game kinda makes me think about smurfs with guns xD

 

[Hisham Khan]

Idk why but this game kinda makes me think about smurfs with guns xD

*TRIGGERED*

 

[Hisham Khan]

Ez question but still

 

[Tom Sewage]

hi
can anyone explain me how to this question

 

[Hisham Khan]

 

[Hisham Khan]

hi
can anyone explain me how to this question
View attachment 63906

Find number of eyepiece graticule between two stage micrometer scales.Then from that,find value of 1 eype piece and when you find value of 1 piece just measure number of eyepiece the plant cell is and multiply by the value which you found for 1 piece

 

[Tom Sewage]

Find number of eyepiece graticule between two stage micrometer scales.Then from that,find value of 1 eype piece and when you find value of 1 piece just measure number of eyepiece the plant cell is and multiply by the value which you found for 1 piece

Thanks

 

[Hisham Khan]

Thanks

Tell me if any more questions

 

[Hisham Khan]

4 is sort of tricky questions

 

[blymphocytes]

Need help.
I don't get resolution and what size will be viewed under what resolution :-/

 

[SohaibButt]

View attachment 63908

Bro it's bio thread ig xD

 

[Hisham Khan]

Need help.
I don't get resolution and what size will be viewed under what resolution :-/


View attachment 63911

if object has higher size then resolution stated it can be seen.
0.25 micrometer is 250 nm .
So as both pandoravirus and mimivirus are more then 250.They will be seen.
typical virus is 20-150 so it will not be seen by light but will be seen by electron I am in a hurry so is my answer right?
Answer is A

 

[blymphocytes]

if object has higher size then resolution stated it can be seen.
0.25 micrometer is 250 nm .
So as both pandoravirus and mimivirus are more then 250.They will be seen.
typical virus is 20-150 so it will not be seen by light but will be seen by electron I am in a hurry so is my answer right?
Answer is A

Ohwww thanks! yess you're right!

 

[SohaibButt]

Any tricky question??