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OCR Mammalian Physiology and Behaviour

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Unfortunately I can't open the 2008 mark scheme, but I'm sure some of you out there can! So based on the mark scheme 08, any ideas what WON'T be coming up tomorrow?

Reply 81

thomsd

whats the difference between blood in the hepatic portal vein and the main hepatic vein apart from the portal vein being rich with nutrients

Reply 82

shenzys

The pressure in thre hepatic is less than the pressure in the artery..I think because the hepatic has already passed through a set of capillaries.

Reply 83

thomsd

I meant the hepatic vein not artery both th portal vein and main vein are at same pressure. Have aquestion state two differences. I know then portal vein is rich in nutrients but the second..... is it to do with glucose levels

Reply 84

rainbowgurl2

errrm hepatic portal vein comes from the stomach and pancreas, whereas the portal vein is from the vena cava...so they both have deoxygenated blood :smile:

Reply 85

rainbowgurl2

ahhh i know...hepatic portal vein contains hormones from the pancreas :smile:

Reply 86

Maestor

it comes from liver and pancreas*

Reply 87

rainbowgurl2

oh yeh lol sorry :smile:

Reply 88

risi

Maestor

it comes from liver and pancreas*

comes from the small intestine and thw pancreas

Reply 89

Andy Conda

Frosty3001

Unfortunately I can't open the 2008 mark scheme, but I'm sure some of you out there can! So based on the mark scheme 08, any ideas what WON'T be coming up tomorrow?

Well alot seem to think Ear is going to be there, which mean eye won't (usually). Muscle contraction will be (maybe a fill in gaps). Ruminent and carnivore teeth adaptations shouldn't be, seeing as though it was one of the two 7 markers in Jan08

Reply 90

Sparrow Hawk

i know some people were talking about how they dont have the OCR mammalian physiology and behaviour textbook. I 've been writing some notes for a wikibooks.

http://en.wikibooks.org/wiki/A-level_Biology/Mammalian_Physiology_and_Behavior

its missing some bits, but its useful for those without the book.

Reply 91

davidjones90

I bet you it will be a nervous question essay to write up

Reply 92

Maestor

oh yeh my bad..revision starting to take its toll! on me!

Reply 93

Lu-x

I only need 6 marks from this exam to get an A overall :biggrin:

Jealous?

Reply 94

------Amy

"Explain how the cochlea of mammals converts sound energy into nerve impulses"
What would I need to write about in the answer? I wouldn't need to write about balance would I? Would I just need to write about hearing?
The mark scheme isn't very detailed!

Reply 95

Freshtrader

Aciassa what have u got in all your other modules?

Reply 96

Lu-x

Freshtrader

Aciassa what have u got in all your other modules?

Foundation - 87/90
Health & Disease - 79/90
Transport (with coursework) - 115/120
Central concepts - 81/90
Unifying concepts (with coursework) - 112/120

Reply 97

Maestor

yes amy :-) only about hearing

Reply 98

------Amy

Maestor

yes amy :-) only about hearing

thank you

Reply 99

-Ian-

here's a question, how is thyroxine controlled by the hypothalamus and anterior pituitary?
it has something to do with another hormone :Z but it all confuses me