A level Biology: Post your doubts here!

[Tajrina Promela]

 

[potatocorn12]

ugh i have a weird gut feeling that it might repeat....(someone asked about it here too). Anywaays lol you are having way too many last minute doubts

no

idea

 

[Hisham Khan]

ugh i have a weird gut feeling that it might repeat....(someone asked about it here too). Anywaays lol you are having way too many last minute doubts

Not doubts but just polishing.Why is all enzyme having quatenary structure wrong mrs potatoe

 

[Hisham Khan]

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23 A

 

[Tajrina Promela]

I thought 23 was A too...but it’s C.

 

[potatocorn12]

Not doubts but just polishing.Why is all enzyme having quatenary structure wrong mrs potatoe

mrs.potato looool,i didnt choose this username.....Anyways,no not all enzymes have quartnery structures e.g. lysozyme(found in saliva and tears)

 

[SohaibButt]

One gene provides the xode for the production of which molecule??

 

[Kanekii]

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Q23 = C
Q18= A as its a passive process

 

[Hisham Khan]

One gene provides the xode for the production of which molecule??

polyneucleotide?

 

[Hisham Khan]

I thought 23 was A too...but it’s C.

A has to be right because 4 is wrong as strands run anti parallel not parallel chekc again

 

[Kanekii]

23 A

Statement 2 is wrong as DNA's nucleotides have ribose while RNA's nucleotides have deoxyribose therefore not the same.

 

[Hisham Khan]

good one

 

[Hisham Khan]

kill me lol

Statement 2 is wrong as DNA's nucleotides have ribose while RNA's nucleotides have deoxyribose therefore not the same.

 

[Kanekii]

A has to be right because 4 is wrong as strands run anti parallel not parallel chekc again

it is anti parallel= opposite direction+parallel

 

[potatocorn12]

C is right because in statement 4 examiner wrote 'run in opposite direction'

A has to be right because 4 is wrong as strands run anti parallel not parallel chekc again

 

[Kanekii]

kill me lol

could repost the link of hard bio mcqs again i wanna try em too

 

[Hisham Khan]

Good question

 

[Kanekii]

Good question

Root cells are famous for coughs* Active transport coughs*
and if sucrose is loaded the solute concentration increases hence water potential decreases and becomes more negative

 

[Kanekii]

could repost the link of hard bio mcqs again i wanna try em too

PREACH

 

[Hisham Khan]

I know

Root cells are famous for coughs* Active transport coughs*
and if sucrose is loaded the solute concentration increases hence water potential decreases and becomes more negative