username5620174
Badges: 10
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#1
Report Thread starter 1 year ago
#1
https://pmt.physicsandmathstutor.com...ystem%20QP.pdf

https://pmt.physicsandmathstutor.com...ystem%20MS.pdf

So for question 6c, im a bit confused

so is it telling me that antibody A attaches to the protein on vivax in the blood firstly and then this moves up the strip and when it gets to antibody C, antibody C binds to protein on vivax with antibody A? (is that how the coloured dye occur?) but i dont get how 2 antibodies can bind to the same protein .
0
reply
luckybillion
Badges: 6
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#2
Report 1 year ago
#2
Plasmodium will have many different proteins on its surface, not just one type.
So antibody A attaches to a general protein on both plasmodium species, but antibody C attaches to a different protein which is only specific to Plasmodium Vivax

So both antibody C and antibody A can bind, and yes, this is why you see the coloured dye (because the coloured dye is attached to antibody A)
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

How did your AQA A-level Psychology Paper 1 go?

Loved the paper - Feeling positive (170)
40.96%
The paper was reasonable (188)
45.3%
Not feeling great about that exam... (36)
8.67%
It was TERRIBLE (21)
5.06%

Watched Threads

View All
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise