# Provisional Mark Scheme For Edexcel IGCSE Biology Paper One 17th may 2016

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1. For the micropropagation question is it not glucose instead of starch?
2. I put glucose as well, I think you will get the mark for both
3. I did a bar graph that's right... right?
4. (Original post by TheBasement)
I did a bar graph that's right... right?
No you'd obviously do line graphs because the question asks you specifically to 'join up the points' so it's not a bar graph. You also needed a key to separate the still wind and the moving wind.
5. Pretty sure its a bar graph it didn't say anywhere to join up the points and you can can't of done a key for a line graph as you could only use one colour
6. Guys did anyone do 1BR , the regional paper?
7. (Original post by Oliver000123)
Pretty sure its a bar graph it didn't say anywhere to join up the points and you can can't of done a key for a line graph as you could only use one colour
It said join the points up with straight lines, and you don't have to do a key you can just label the lines, but i forgot to do that because i was just so stressed it slipped my mind.
Also it isn't discrete data that you are plotting it's continuous so it has to be a line graph.
Yeah thats what I wrote, but the original guy who made the mark scheme wrote that so I just left it in, but yeah I agree.
'The guy' is me, you should've said so at the start! I would've happily changed it as i wasn't very sure on my answer haha
9. (Original post by Oliver000123)
Pretty sure its a bar graph it didn't say anywhere to join up the points and you can can't of done a key for a line graph as you could only use one colour
It was a line graph, and you labelled the lines by just writing which data they represent next to them.

Samiyah is correct about the data being 'continuous' as there is a range of values for the same thing. A bar graph would be correctly used when dealing with non numerical independent variables ie. catagories of things with names.

This explains the difference:

http://www.bbc.co.uk/schools/gcsebit...a3hirev1.shtml
10. Anyone know when the papers go online?
11. Well, I screwed that paper up.
12. Yes but you could've used dots and crosses and then write the key on the side for which one was which
13. guys will i get a mark if i said vagina wall instead of vagina? LOL. i said ligament instead of oviduct #idiot
14. (Original post by samiyah jameel)
I put glucose as well, I think you will get the mark for both
i said glucose too
15. (Original post by Elliwhi)
Well, I screwed that paper up.
cheers
16. There was a question after 1)b which asked you to identify what these little cells were between the neurones shown in the diagram I wrote nerves but not sure if it is right!!
17. (Original post by bjgc00)
There was a question after 1)b which asked you to identify what these little cells were between the neurones shown in the diagram I wrote nerves but not sure if it is right!!
the gaps between neurones are synapses
18. i wrote cervix, i think that's right actually
glucose
I put nutrients
20. (Original post by asd.987)
I put nutrients
How about carbohydrates? Will that be right?

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