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A2 Biology OCR June 2015 Revision Thread

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Hold tight my gz doin an all nighter
Original post by blubear
1. Sex-linked or Epistasis cross with a Chi-Squared calculation

2. Nitrogen Cycle

3. Primate behaviour (Insight learning experiment?)

4. Timber Management

5. Succession

6. Natural and Artificial Selection

My tutor sent me these a possible questions for this year, though I wouldn't take jis word as gospel.
Hope this helps.



Thank you so much! (:
Original post by ChoccyPhilly
The cerebrum and its 3 divisions

whats the 3 divisons?:confused:
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Avatar for hibaj
hibaj
3
Who wants to teach me things about module 2 and 3 :|
Original post by MarcusGoddard
any specific parts of the brain we have to know indepth


Including their functions, you're meant to know:
Cerebrum: source of conscious thought and intelligence, sensory/association/motor areas
Cerebellum: coordination and movement
Hypothalamus: thermoreceptors, ADH, role in 'fight or flight' response
Medulla Oblongata - alters breathing/heart rate
Pituitary gland - anterior releases ACTH, posterior releases ADH

Hope that helps :smile:
There was a past paper q what is succession (4) but carent find it ?????
whats the quickest way to memorise and learn notes?
anyone know coordination of movement stuff
Original post by MarcusGoddard
whats the 3 divisons?:confused:


Sensory, association and motor area
Original post by peanutcracker20
haha yeah there's hope if others have done it before hand and re stocked for caffeine so should be able to work now


From when the sun rises until 11.00 am I will be running on coffee. Let's hope it works! :crossedf:
Original post by Meesh14
whats the quickest way to memorise and learn notes?


Read the mark scheme
Original post by Diamond Crafter
From when the sun rises until 11.00 am I will be running on coffee. Let's hope it works! :crossedf:


4am bedtime for me tonight which is going to be so hard after c4 heroics last night
Original post by Malawasheree
Including their functions, you're meant to know:<br />
Cerebrum: source of conscious thought and intelligence, sensory/association/motor areas<br />
Cerebellum: coordination and movement<br />
Hypothalamus: thermoreceptors, ADH, role in 'fight or flight' response<br />
Medulla Oblongata - alters breathing/heart rate<br />
Pituitary gland - anterior releases ACTH, posterior releases ADH<br />
<br />
Hope that helps <img src="images/smilies/smile.png" border="0" alt="" title=":smile:" smilieid="1" class="inlineimg" />


I thought the fight or flight response is found in the peripheral nervous system, which would make it outside the brain and spinal cord?
Original post by Malawasheree
Including their functions, you're meant to know:
Cerebrum: source of conscious thought and intelligence, sensory/association/motor areas
Cerebellum: coordination and movement
Hypothalamus: thermoreceptors, ADH, role in 'fight or flight' response
Medulla Oblongata - alters breathing/heart rate
Pituitary gland - anterior releases ACTH, posterior releases ADH

Hope that helps :smile:

thanks thats a big help
Original post by ChoccyPhilly
4am bedtime for me tonight which is going to be so hard after c4 heroics last night


You sure that's wise? :s-smilie: You don't want to burn out before the exam. Maybe go to sleep earlier and get up at 4am?
Original post by ChoccyPhilly
4am bedtime for me tonight which is going to be so hard after c4 heroics last night


Same man, how did you find c4? and what board you doing for maths?
What are the ratios we should know for genetics?
Original post by ChoccyPhilly
4am bedtime for me tonight which is going to be so hard after c4 heroics last night


Did you pull off a C4 all nighter??
Original post by ChoccyPhilly
I thought the fight or flight response is found in the peripheral nervous system, which would make it outside the brain and spinal cord?


Danger in which the 'flight or flight' response if for is detected by receptors in the ear and eye. These send impulses to the sensory areas - then to the association areas. The association areas interpret the impulses and activate the hypothalamus.

The hypothalamus then activates a bunch of stuff, which I'm too lazy to type
Can someone please explain pollarding and coppicing?
Thanks

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