June 12 2012 aqa biology gcse???

Thank you very much :smile:

I feel much better now. Yeah! I've been watching these videos for the past hour! Absolutely amazing, Wish I've found them out earlier!

It's ok. Glad you found them useful though :smile:

Reply 61

ma1996leb

1

guys is there a chemistry and physics open yet for the new spec june exams?

Reply 62

4MYH0N3YW311

Scared

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

Reply 63

memoona123456

OP

8

Why??? Havent you revised? :frown:

Reply 64

ThatPerson

18

Original post by 4MYH0N3YW311

Scared

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

I'm panicking as well. I've revised and I know all the content in B1, but still I'm panicking.

How about we test each other.

Describe the reflex arc?

Reply 65

Charwas

4

this is a great resource, filled with biology help

http://getrevising.co.uk/resources/subjects/biology/levels/gcse

get revising is free but it requires you to log in to view the contents

Reply 66

StudyScience98

1

I've revised the specification. All I can do is try my best now. If we're going to test each other, how about:

Describe, as fully as possible, the main differences between selective breeding and genetic modification.

(edited 11 years ago)

Reply 67

4MYH0N3YW311

Original post by ThatPerson

I'm panicking as well. I've revised and I know all the content in B1, but still I'm panicking.

How about we test each other.

Describe the reflex arc?

SAME!!! hahaa, and someone earlier asked; yes I have revised by Biology is my worst subject :|

The reflex arc is a quick path for a reaction. It bypasses the brain and consists of the neurones and the spinal cord. It can save precious time by not needing the brain's involvement! :s-smilie:

(I have no idea ahaha)

Your turn; Describe the process of Fusion Cell cloning

Reply 68

ThatPerson

18

Original post by 4MYH0N3YW311

SAME!!! hahaa, and someone earlier asked; yes I have revised by Biology is my worst subject :|

The reflex arc is a quick path for a reaction. It bypasses the brain and consists of the neurones and the spinal cord. It can save precious time by not needing the brain's involvement! :s-smilie:

(I have no idea ahaha)

Your turn; Describe the process of Fusion Cell cloning

Fusion cell Cloning:

You take 1 egg cell from a healthy person/animal, and then you take a skin cell from the donor you want.

You remove the both nucleus' and then you put the donor nuclus into the egg cell and use an electric shock to fuse them together. After this you implant it in a surrogate mother for birth.

For future reference, the reflex arc is:

Stimulus-Receptor-Sensory Neurone - Relay Neurone(In the Spinal Cord/CNS) - Motor Neurone - Effector.

To transmit messages from i.e. the sensory-relay neurone; the electrical impulse triggers a neurotransmitter which then diffuses across the synapse.

My Question:

Name 3 ways White Blood cells fight against disease.

Reply 69

Jo166

Can anyone help with vaccinations and cloning??

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

Reply 70

ThatPerson

18

Original post by Jo166

Can anyone help with vaccinations and cloning??

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

I can help. What do you want to know?

Reply 71

ThatPerson

18

Original post by StudyScience98

I've revised the specification. All I can do is try my best now. If we're going to test each other, how about:

Describe, as fully as possible, the main differences between selective breeding and genetic modification.

err...

Selective breeding is not in the spec I don't think. It's not in my CGP book.

Is it that selective breeding has variation and you can specifically target characteristics whereas with genetic modification you can specifically change the characteristics you want to.

Reply 72

Mrkingpenguin

18

Original post by 4MYH0N3YW311

SAME!!! hahaa, and someone earlier asked; yes I have revised by Biology is my worst subject :|

The reflex arc is a quick path for a reaction. It bypasses the brain and consists of the neurones and the spinal cord. It can save precious time by not needing the brain's involvement! :s-smilie:

(I have no idea ahaha)

Your turn; Describe the process of Fusion Cell cloning

(Unconscious parts of the brain can also be used)

Reply 73

Jo166

Original post by ThatPerson

I can help. What do you want to know?

Errr, tissue culture and IVF(don't know if this comes under cloning?) and also the technical terms for a vaccination answer?. Thanks :smile:

Reply 74

ThatPerson

18

Original post by Jo166

Errr, tissue culture and IVF(don't know if this comes under cloning?) and also the technical terms for a vaccination answer?. Thanks :smile:

Tissue culture is when you get plant cells, and you put them in a growth medium with plant hormones. This is a very effective method and can be used all year round.

IVF is "In-Vitro Fertilisation" is a fertility treatment. IVF is NOT Cloning. cloning produces an exact copy because only one persons genetic material is used(Asexual reproduction), whereas IVF is sexual reproduction taking place outside the human body.

This is where the womens eggs are fertilised in a lab with the mans sperm. These are then allowed to grow into an embryo(a cluster of cells). This is then implanted into the womens womb for birth.

FSH and LH Hormones are given to the donor woman to maximise egg production to increase the chance of a sucessful pregnancy.

Vaccination: This topic takes quite a bit of explaining. I'm not sure if I can say all the correct technical terms so watch this video. http://www.youtube.com/watch?v=KnM9s8VDIs8

(edited 11 years ago)

Reply 75

Jo166

Original post by ThatPerson

http://www.youtube.com/watch?v=KnM9s8VDIs8

Thanks this video was great!! got my exam tomorrow, hope it goes alright

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

Reply 76

ThatPerson

18

Original post by Jo166

Thanks this video was great!! got my exam tomorrow, hope it goes alright

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

This is the rest of the series. It has B1, C1 and P1.

http://my-gcsescience.com/Core_Science_HIU3.html

Reply 77

jwf13

6

If the grade boundaries for an A* are 83%, I'm screwed. :ashamed2:

Reply 78

08rbut

10

Does anyone know the grade boundaries roughly for foundation? Yeah, I am rubbish at Biology.

Reply 79

Mrkingpenguin

18

Original post by jwf13

If the grade boundaries for an A* are 83%, I'm screwed. :ashamed2:

I think the agreed grade boundaries are 48/60 for A* for the module (don't know about foundation though).

Apparently to teachers the exam board have raised grade boundaries this year to reduce grade inflation. :angry:

lol

June 12 2012 aqa biology gcse???

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