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Official AQA Biology Unit 3 14th May 2013 NEW SPEC

Out of interest, how would you guys make 6 points about a question evaluating the use of artificial blood products and circulation aids?

Hopefully this will help, this is all I can think of off the top of my head.. I know there's more than enough points there, but some points will be better to choose because they are easier to justify, i.e. 'They don't need to match person's blood tissue, so the heart wont be rejected'

Advantages of artificial hearts;

- Don't need to match person's blood tissue, so the heart wont be rejected
- No need for immunosuppressant drugs, so the patient is less likely to become infected
-They can prolong life until a real heart is available
- Patients don't need to stay in hospital, allowing them to spend time with family
- Readily available

Disadvantages of artificial hearts;

- The motor inside the heart could run out/Batteries will need to be recharged regularly
- The patient will still have a major operation
- Need to take drugs that thin the blood, which may cause complications with other organs
- They are quite large, so some people may not actually be able to have them

Reply 41

CD223

10

Original post by Lucas.

Hopefully this will help, this is all I can think of off the top of my head.. I know there's more than enough points there, but some points will be better to choose because they are easier to justify, i.e. 'They don't need to match person's blood tissue, so the heart wont be rejected'

Advantages of artificial hearts;

- Don't need to match person's blood tissue, so the heart wont be rejected
- No need for immunosuppressant drugs, so the patient is less likely to become infected
-They can prolong life until a real heart is available
- Patients don't need to stay in hospital, allowing them to spend time with family
- Readily available

Disadvantages of artificial hearts;

- The motor inside the heart could run out/Batteries will need to be recharged regularly
- The patient will still have a major operation
- Need to take drugs that thin the blood, which may cause complications with other organs
- They are quite large, so some people may not actually be able to have them

Thank you very much :smile:

Reply 42

Lucas.

6

Original post by CD223

Thank you very much :smile:

No problem. :smile:

Reply 43

bbadonde2

4

Original post by Lucas.

Hopefully this will help, this is all I can think of off the top of my head.. I know there's more than enough points there, but some points will be better to choose because they are easier to justify, i.e. 'They don't need to match person's blood tissue, so the heart wont be rejected'

Advantages of artificial hearts;

- Don't need to match person's blood tissue, so the heart wont be rejected
- No need for immunosuppressant drugs, so the patient is less likely to become infected
-They can prolong life until a real heart is available
- Patients don't need to stay in hospital, allowing them to spend time with family
- Readily available

Disadvantages of artificial hearts;

- The motor inside the heart could run out/Batteries will need to be recharged regularly
- The patient will still have a major operation
- Need to take drugs that thin the blood, which may cause complications with other organs
- They are quite large, so some people may not actually be able to have them

Just to correct you, they are not particularly readily available but compared to a heart donor they are. I personally wouldn't say they are 'readily available'. I'd say they are more accessible compared to a heart donor.

Reply 44

ffionhanathomas

Does anyone know where I can find the past paper & mark scheme for:
June 2012
January 2013

Reply 45

grammar12

OP

5

Original post by ffionhanathomas

Does anyone know where I can find the past paper & mark scheme for:
June 2012
January 2013

This is the very first examination session for the current specification. We are the first ever to sit the new B3 examinations. Therefore, there are only a few specimen papers floating around. If you are referring to the B1 or B2 papers, the link for these can be found in the OP

Reply 46

AndyChow

19

Original post by Lucas.

Hopefully this will help, this is all I can think of off the top of my head.. I know there's more than enough points there, but some points will be better to choose because they are easier to justify, i.e. 'They don't need to match person's blood tissue, so the heart wont be rejected'

Advantages of artificial hearts;

- Don't need to match person's blood tissue, so the heart wont be rejected
- No need for immunosuppressant drugs, so the patient is less likely to become infected
-They can prolong life until a real heart is available
- Patients don't need to stay in hospital, allowing them to spend time with family
- Readily available

Disadvantages of artificial hearts;

- The motor inside the heart could run out/Batteries will need to be recharged regularly
- The patient will still have a major operation
- Need to take drugs that thin the blood, which may cause complications with other organs
- They are quite large, so some people may not actually be able to have them

One more to add: They cause discomfort because batteries will be implanted into the patient.
Furthermore the drug is called Blood Thinners
Risk of infection is linked to operation, also perhaps low success rate?

(edited 10 years ago)

Reply 47

a123a

14

Anyone got a link to the b3 June 2012 paper? And ms

Reply 48

a123a

14

Anyone got a link to the b3 June 2012 paper?

Reply 49

a123a

14

Original post by Lucas.

Have you read the thread?

I kno im talking about old spec, need to improve exam technique...

Reply 50

Captain Anonymous

14

Check the Aqa website :s-smilie:

Posted from TSR Mobile

Reply 51

Lucas.

6

Original post by a123a

I kno im talking about old spec, need to improve exam technique...

Ahh okay, sorry man. I'll do some digging now to make up for being harsh. I'm sure someone must have it here anyway.

EDIT: Is this what you're looking for? http://filestore.aqa.org.uk/subjects/AQA-BLY3H-QP-JUN12.PDF

(edited 10 years ago)

Reply 52

a123a

14

Original post by Lucas.

Ahh okay, sorry man. I'll do some digging now to make up for being harsh. I'm sure someone must have it here anyway.

EDIT: Is this what you're looking for? http://filestore.aqa.org.uk/subjects/AQA-BLY3H-QP-JUN12.PDF

Thank u! A life saver...Mark scheme? :colondollar:

Reply 53

Lucas.

6

Original post by a123a

Thank u! A life saver...Mark scheme? :colondollar:

No problem. :smile:

Here; http://filestore.aqa.org.uk/subjects/AQA-BLY3H-W-MS-JUN-2012.PDF

Reply 54

bbadonde2

4

Original post by Lucas.

No problem. :smile:

Here; http://filestore.aqa.org.uk/subjects/AQA-BLY3H-W-MS-JUN-2012.PDF

Tip, when finding past papers just type in the paper code fr example for June '10 higher:
JUN10BLY3H01

Reply 55

ffionhanathomas

Thank you for the past paper & mark scheme link, will be helpful!
I'm really hoping to get an A* in this exam, but not feeling overly confident. Seems like most people think the 6 marker will be explaining the biogas generator..I'm torn between that and blood flow through the heart!