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# Gcse aqa biology unit 2 higher watch

1. (Original post by EmmaC_)
I put enzymes can denature.. Would that be alright?

I don't know tbh hopefully it'll be accepted as well.
2. Well i ****ed up... Bye bye A*
3. What were the numbers for the sperm cells on the mieosis question??

B- ?
C- ?
E- ?
4. (Original post by Brewah)
What were the numbers for the sperm cells on the mieosis question??

B- ?
C- ?
E- ?
6.6 6.6 3.3 that's what I got
5. (Original post by CopyThat)
Well i ****ed up... Bye bye A*
Same don't worry
7. Mitosis and 1.5 mins
8. (Original post by etata)
6.6 6.6 3.3 that's what I got
The pictograms thing said that A is a cell then B is double its size then it spilits (C) so back to same size as A then that splits again And D,E,F,G are sperm cellsSo A = 6.6B = 13.2C = 6.6And D onwards are 3.3 I think??? Plus egg is 6.6

Agin these are my answers so I'm not certain if right.

I think this because in meiosis the Dan doubles so
A = 23 chromosomes
B= 46

But they then spilt so back to 23 for each sperm.
9. (Original post by Blahblahblah7)
The pictograms thing said that A is a cell then B is double its size then it spilits (C) so back to same size as A then that splits again And D,E,F,G are sperm cellsSo A = 6.6B = 13.2C = 6.6And D onwards are 3.3 I think??? Plus egg is 6.6

Agin these are my answers so I'm not certain if right.

I think this because in meiosis the Dan doubles so
A = 23 chromosomes
B= 46

But they then spilt so back to 23 for each sperm.
But in meiosis the cell divides twice: firstly- the chromosomes double in the cell but then the first lot of daughter cells will have the same number, the second lot will have half ?
10. 1.5 mins and meiosis
11. (Original post by Charlll23)
1.5 mins and meiosis
I really hope it's 1 minute - since the blood flow stays high to repay oxygen debt for a while after exercise has stopped, I got mitosis
12. (Original post by etata)
6.6 6.6 3.3 that's what I got
Got b as 13.2
13. (Original post by Charlll23)
1.5 mins and meiosis
Sorry to say that I think it's mitosis as it said a fertilised egg cell
14. (Original post by Charlll23)
Got b as 13.2
Yep b was 13.2 as the DNA is one cell doubles and then the nuclear membrane breaks down so it can go back to 6.6 and then each sperm was 3.3 I think?
15. (Original post by Blahblahblah7)
Yep b was 13.2 as the DNA is one cell doubles and then the nuclear membrane breaks down so it can go back to 6.6 and then each sperm was 3.3 I think?
Are you sure it doubled?
How many minutes was the athlete exercising for...? And was it meiosis or mitosis?
i believe it was 1.5 mins and mitosis
17. (Original post by etata)
Are you sure it doubled?
thats correct
18. (Original post by samiuls)
thats correct
**** sake, I've had enough of aqa- and I think it was 1 min
19. (Original post by etata)
Are you sure it doubled?
I thought so as it says DNA is doubled
20. (Original post by Blahblahblah7)
I thought so as it says DNA is doubled
but was that the cell that we had to give the number of chromosomes for?
so hang on I'll just tell you my thinking.
1) cell with 6.6
2) 2 cells each with 6.6
3) 4 cells each with 3.3

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Updated: June 12, 2016
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