A level Biology: Post your doubts here!

[Hisham Khan]

Wait centriols are absent and cell wall present??.Isint this wrong

 

[Hisham Khan]

K

 

[Hisham Khan]

It combines irreversibly.

Q28, why is C wrong??View attachment 63951

No one answering my questions (

 

[Hisham Khan]

Can someone explain thiss wtf??

 

[Hisham Khan]

why not C

 

[potatocorn12]

View attachment 63950
Wait centriols are absent and cell wall present??.Isint this wrong

dont rely on these answers...told you a couple of them were wrong ,this one *might* be too.Just rely on your knowledge!!!(you know quite well enough )

 

[Hisham Khan]

Good q

 

[Kanekii]

CAN ANYONE PLS TELL ME NAMES OF A AN D BONDS AND WHERE ARE THEY FOUND

A= Covalent bond
B=amide bond
D=ester bond

 

[Hisham Khan]

dont rely on these answers...told you a couple of them were wrong ,this one *might* be too.Just rely on your knowledge!!!(you know quite well enough )

Can you explain 22 23 and bond uestion

 

[Hisham Khan]

wh

A= Covalent bond
B=amide bond
D=ester bond

Isint A glycocidic bond

 

[potatocorn12]

why not C
View attachment 63954

here 22 is simple,look you have 6 adenine in strand one,that clearly means you will have 6 thymine in strand 2.Now you have 4 guanine in strand 2 ,that means 4 cytosine in strand 1,now add up the strand one bases( they should sum up to 15)

 

[Hisham Khan]

here 22 is simple,look you have 6 adenine in strand one,that clearly means you will have 6 thymine in strand 2.Now you have 4 guanine in strand 2 ,that means 4 cytosine in strand 1,now add up the strand one bases( they should sum up to 15)

Silly me xD

 

[Kanekii]

One oxygen is removed in condensation lol

Lmao i literally forgot about condensation in this one hahaha

 

[Hisham Khan]

why not C

 

[Hisham Khan]

Lmao i literally forgot about condensation in this one hahaha

Correct answer of 17

 

[Hisham Khan]

 

[Kanekii]

wh

Isint A glycocidic bond

Oh yeah glycosidic sorry i though 1 C and 2 O

 

[Hisham Khan]

Why D??

 

[blymphocytes]

Answer is 4 because each trna has anticodon for 1 amino acid as there are 4 different kinds of 10 aminoacids 4 trna for 10 of them

Ohww rightttt............thanks

 

[Kanekii]

Q28, why is C wrong??View attachment 63951

Its A and
Carbon monoxide combines IRREVERSIBLY With haemogoblin