AQA AS BIOL1 biology and disease January 11th 2012
Biology exam discussion - share revision tips in preparation for GCSE, A Level and other biology exams and discuss how they went afterwards.
-
- Reputation:
- Thread Starter
- Full Member
- Posts: 140
AQA AS BIOL1 biology and disease January 11th 2012Hi guys, the exam is only one month away so i created a new thread on this. How is the revision going or when are you going to start revising. Anything related to this exam can be posted in this thread. Good luck everybody.
-
- Reputation:
- Exalted Member
- Location: Newcastle Upon Tyne
- Posts: 340
Re: AQA AS BIOL1 biology and disease January 11th 2012Yeah(Original post by izzo)
Hi anyone got the mark scheme for this Exam?! Been looking everywhere!!
Here you are.
-
- Reputation:
- Junior Member
- Posts: 53
Re: AQA AS BIOL1 biology and disease January 11th 2012yeah(Original post by Rizzy J)
Does anybody have the paper for this exam? Thanks -
- Reputation:
- Junior Member
- Posts: 53
Re: AQA AS BIOL1 biology and disease January 11th 2012Can anyone tell me why the number of molecules the triglyceride is formed is 4 and not 3? Is it due to one of the molecules having a double bond, this is question 1bi)
Also for 5bii) what is the stroke volume? and why? Thanks -
- Reputation:
- Banned
- Posts: 3,151
Re: AQA AS BIOL1 biology and disease January 11th 2012Stroke volume = 93 because 148-55 = 93.(Original post by izzo)
Also for 5bii) what is the stroke volume? and why? Thanks
What I don't understand is why it is 93, do you not take into account the other ventricle "shows the volume of blood in a man’s right ventricle at different times during one cardiac cycle" so you have to take into account the left ventricle as well? Or do you not? -
- Reputation:
- Exalted and Worshipped Member
- Location: London
- Posts: 996
Re: AQA AS BIOL1 biology and disease January 11th 2012Wouldn't have thought so as its only the blood from the left ventricle being sent round the body so that's the stroke volume(Original post by . . .)
Stroke volume = 93 because 148-55 = 93.
What I don't understand is why it is 93, do you not take into account the other ventricle "shows the volume of blood in a man’s right ventricle at different times during one cardiac cycle" so you have to take into account the left ventricle as well? Or do you not?
-
- Reputation:
- Banned
- Posts: 3,151
Re: AQA AS BIOL1 biology and disease January 11th 2012I see but then why does the table show data for the right ventricle?(Original post by MediterraneanX)
Wouldn't have thought so as its only the blood from the left ventricle being sent round the body so that's the stroke volume
-
- Reputation:
- Exalted and Worshipped Member
- Location: London
- Posts: 996
Re: AQA AS BIOL1 biology and disease January 11th 2012To mislead you(Original post by . . .)
I see but then why does the table show data for the right ventricle?
Here you are.
