The Student Room Group
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>

AQA A2 BIOL5 22nd June 2012

Scroll to see replies

Original post by George0123
What would you guys include for the essay: " The causes of variation and it's biological importance"?

Thanks in advance :-)


This was posted from The Student Room's iPhone/iPad App


you would talk about

Unit 1- amino acid sequence (i.e. primary-tertiary)

Unit 2- environmental variation, meiosis, quick bit on antibiotic resistance

Unit 4-sex linkage(tempted to bring in haemophilia) and co-dominance

Unit 5- gene therapy so like addition of probes to 'mask' defected allele
Original post by George0123
What would you guys include for the essay: " The causes of variation and it's biological importance"?

Thanks in advance :-)


This was posted from The Student Room's iPhone/iPad App


Meiosis/Random fertilisation/crossing-over/independent segregation (assortment of alleles)
Environmental factors (affect on phenotype)
Mutations/Mutagenic agents
Natural selection/Speciation

There's probably other things you could include, can't think of them at the moment. :lol:
Essay prep is going along nicely. Just went over different diseases and inherited diseases. Could include examples of diseases relating to the topic I'm actually discussing.

I'm hoping for 20/25 marks for this essay
Original post by James A
Essay prep is going along nicely. Just went over different diseases and inherited diseases. Could include examples of diseases relating to the topic I'm actually discussing.




Ooo what kind of stuff did you get for this title James ?
Original post by Bright.Inspiration.
Ooo what kind of stuff did you get for this title James ?


No, it wasn't a title. I'm just making notes in general of different diseases.

Like Emphysema, Alzheimers etc , the symptoms and consequences (e.g. alzheimers causes your brain to decrease in mental abilities). It's something to include when discussing something like the splicing of pre-mRNA in transciption..
Just a quick question, how detailed must we know about the Pacinian corpuscle and the eye as I have never seen a question on it come up in the new spec papers...

Also, not sure if anyone has posted but here's a list of potential essay questions my teachers have given me:

1. The functions of nucleic acids.
2. The factors which influence the concentration of glucose in the blood.
3. Relationships between animals and plants
4. How the structure of cell organelles is related to their functions
5. The process of diffusion and its importance in living organisms.
6. Maintaining constant conditions in the body.
7. The many causes of human disease.
8. The factors which determine an organism's phenotype
9. The different ways in which organisms use ATP
10. How the structure of cells is related to their function
11. How bacteria affect human lives
12. The biological importance of water
13. The structure and functions of carbohydrates
14. Cycles in biology
15. How CO2 gets from a respiring cell to the lumen of an alveolus in the lungs
16. The transfer of energy between different organisms and between these organisms and their environment
17. Ways in which different species of organisms differ from each other
18. Negative feedback and its importance in biology
19. Condensation and hydrolysis and their importance in biology.
20. Describe how inorganic ions are used in living organisms.
21. Apart from causing disease, describe how bacteria may affect the lives of humans and other organisms.
22. Describe how the structures of different polymers are related to their functions.
23. Heat and many different substances are transferred within the body and between the body and the environment. Explain how surface area is linked to this transfer.
24. Energy transfers which take place inside living organisms.
25. The process of osmosis and its importance to living organisms.
26. How cells divide, and the roles of different types of cell division.

Specimen Paper:

Mean temperatures are rising in many parts of the world. The rising temperatures may result in physiological and ecological effects on living organisms. Describe and explain these effects.

The causes of variation and its biological importance.

June 2010:

Carbon dioxide may affect organisms directly or indirectly. Describe and explain these effects.

The causes of disease in humans.

June 2011:

Using DNA in science and technology

A cycle is a biological pathway or process in which the end product of one cycle becomes the starting point for the next cycle. Write an essay about cycles in biology.

Hope this helps everyone, good luck :smile:
(edited 11 years ago)
Reply 846
Avatar for Heyimdec
Heyimdec
8
Thanks for the list drlesliechoi.

Praying for a Cycles essay to come up! :colondollar:
Original post by drlesliechoi
Just a quick question, how detailed must we know about the Pacinian corpuscle and the eye as I have never seen a question on it come up in the new spec papers...



The detail of your textbook.
Original post by Heyimdec
Thanks for the list drlesliechoi.

Praying for a Cycles essay to come up! :colondollar:


There won't be a cycles essay as it was on the June 2011 paper.
Original post by drlesliechoi
Just a quick question, how detailed must we know about the Pacinian corpuscle and the eye as I have never seen a question on it come up in the new spec papers...

Also, not sure if anyone has posted but here's a list of potential essay questions my teachers have given me:

1. The functions of nucleic acids.
2. The factors which influence the concentration of glucose in the blood.
3. Relationships between animals and plants
4. How the structure of cell organelles is related to their functions
5. The process of diffusion and its importance in living organisms.
6. Maintaining constant conditions in the body.
7. The many causes of human disease.
8. The factors which determine an organism's phenotype
9. The different ways in which organisms use ATP
10. How the structure of cells is related to their function
11. How bacteria affect human lives
12. The biological importance of water
13. The structure and functions of carbohydrates
14. Cycles in biology
15. How CO2 gets from a respiring cell to the lumen of an alveolus in the lungs
16. The transfer of energy between different organisms and between these organisms and their environment
17. Ways in which different species of organisms differ from each other
18. Negative feedback and its importance in biology
19. Condensation and hydrolysis and their importance in biology.
20. Describe how inorganic ions are used in living organisms.
21. Apart from causing disease, describe how bacteria may affect the lives of humans and other organisms.
22. Describe how the structures of different polymers are related to their functions.
23. Heat and many different substances are transferred within the body and between the body and the environment. Explain how surface area is linked to this transfer.
(These are all made up ones, the past paper ones and the specimen paper everyone should have already :smile:)



Do you really think the part in bold will come up?

That's a four mark question in a normal paper, why would something narrow like that come up in the exam? I'll give everyone 10 quid on this forum if that comes up lol
Original post by James A
Do you really think the part in bold will come up?

That's a four mark question in a normal paper, why would something narrow like that come up in the exam? I'll give everyone 10 quid on this forum if that comes up lol


DEAL!
Personally no, I'm just posting what my teachers gave me
Original post by James A
Do you really think the part in bold will come up?

That's a four mark question in a normal paper, why would something narrow like that come up in the exam? I'll give everyone 10 quid on this forum if that comes up lol


Indeed, it wouldn't be an essay title. No £10 for me. :frown:
Reply 852
Avatar for Heyimdec
Heyimdec
8
Original post by James A
Do you really think the part in bold will come up?

That's a four mark question in a normal paper, why would something narrow like that come up in the exam? I'll give everyone 10 quid on this forum if that comes up lol


Deal! :biggrin:
Reply 853
Avatar for Heyimdec
Heyimdec
8
Original post by NutterFrutter
There won't be a cycles essay as it was on the June 2011 paper.


I know, I wrote the essay for my mock. It would be nice though. :colone:
Original post by Heyimdec
I know, I wrote the essay for my mock. It would be nice though. :colone:


It would be very nice, let's just hope we get an essay which is similarly easy.
Original post by drlesliechoi
DEAL!
Personally no, I'm just posting what my teachers gave me



Original post by NutterFrutter
Indeed, it wouldn't be an essay title. No £10 for me. :frown:



Original post by Heyimdec
Deal! :biggrin:


hehe sweepstakes for the essay title that comes ups in biology :rofl:
Original post by drlesliechoi
23. Heat and many different substances are transferred within the body and between the body and the environment. Explain how surface area is linked to this transfer.



O.o

not much to write for this one, is there..?
Any tips on marking synoptic essays? and any tips on writing them lol
Original post by Bright.Inspiration.
O.o

not much to write for this one, is there..?


The "surface area" part of the question really narrows it down. :lol:
Original post by Akbar2k7
Any tips on marking synoptic essays? and any tips on writing them lol


There isn't much point in marking the essays you write, just make sure you can write a lot and cover a lot of different points. I wouldn't know how examiners actually mark the essays, they go to many standardisation meetings where they discuss marking. Generally, the first thing they look at is the length of the essay.

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you