OCR biology paper 2 2019 discussion

I got 84 for the phospholipid question

I got 84 for the phospholipid question

For the amount of amino acids that would
Be different (MCQ) I said 0-1
I said the passaged described an ecosystem
I said the non competitive inhibitor was A
For the questions about dna purification
The onion was broken up to increase surface and to volume ratio so the enzymes could break down the dna faster
Protease enzyme breaks down peptide bonds between DNA
The pinaapplejuice may contain other enzymes the could disappear
The ethanol should be added drop wise
And it was a precipitation reaction ?

The mcq on inhibitor was asking for competitive so it was D i think

Why was the age not shown on the X axis
I said it’s hard to tell the exact age of a nucleus because it’s taken from a body cell and you don’t know when it was produced by mitosis something like that

I agree

I got 84 for the phospholipid question

I got 0.625 for the index questions
11% for the percentage of the pie chart

For the amount of amino acids that would
Be different (MCQ) I said 0-1
I said the passaged described an ecosystem
I said the non competitive inhibitor was A
For the questions about dna purification
The onion was broken up to increase surface and to volume ratio so the enzymes could break down the dna faster
Protease enzyme breaks down peptide bonds between DNA
The pinaapplejuice may contain other enzymes the could disappear
The ethanol should be added drop wise
And it was a precipitation reaction ?

i put 12.5%, did you use a protractor or something?

Onion was broken in mortal and pestle to break down cell wall.
The step missed was adding detergent to distrust cell membrane
Protease enzyme break down histones protein associated with DNA forming chromatin
Contamination of DNA with pineapple dna
Precipitation reaction
Idk whose answers are correct but will appreciate other people telling their answers too