The late night/all nighter chat thread. Watch

chuck111
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#281
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#281
lol we should have a thread like this every night its such good motvation to actually stay up late for cramming
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gman2k8
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#282
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#282
(Original post by chuck111)
lol we should have a thread like this every night its such good motvation to actually stay up late for cramming
It really is tbh, and + the competition makes sure you don't go sleep lol
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Ijustdon'treallyknow
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#283
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#283
(Original post by Tinkerbelle ♥)
See you say that and laugh but there are a family of foxes that live at the bottom of our garden...
:eek:

This thread is keeping me alive




Also, reps for the winner?
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chuck111
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#284
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#284
(Original post by Dan1992)
i was revising for history alone in my house, and i think i'm going to have nightmares now...

is it just me that finds these images of Lenin massively creepy/scary/disturbing?

http://www.marxists.org/archive/leni...lenin-ld-5.jpg

http://upload.wikimedia.org/wikipedi...18/Lenin10.jpg
im not even gunna look im one of the most paranoid people ever
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Tinkerbelle ♥
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#285
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#285
(Original post by chuck111)
lol we should have a thread like this every night its such good motvation to actually stay up late for cramming
:yep: i concur.

quick question while i'm quoting you as i cant find it - in RNA what is uracil instead of ? :o:
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brokenangel27
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#286
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#286
(Original post by chuck111)
lol we should have a thread like this every night its such good motvation to actually stay up late for cramming
Ooo cool idea, it's always good to have someone to talk to during the mini breaks at night who are going through the same situation :yep:
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MBibzle
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#287
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#287
I see people are still keeping strong through the night. I've just finished another can of red bull and another physics chapter.
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Tinkerbelle ♥
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#288
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#288
Sorted then, i'll see you ALL here tomorrow night at 12
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chuck111
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#289
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#289
(Original post by Tinkerbelle ♥)
:yep: i concur.

quick question while i'm quoting you as i cant find it - in RNA what is uracil instead of ? :o:
THYMINE :d:d:d:d:d:d
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Ijustdon'treallyknow
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#290
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#290
Tomorrow night then, if I can manage it!
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brokenangel27
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#291
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#291
(Original post by chuck111)
im not even gunna look im one of the most paranoid people ever
*blinks with a blank face*

You're lucky you didn't look, those pictures were well creepy. Lucky I'm not going to sleep in like 5 minutes, I'd have nightmares!!!
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gman2k8
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#292
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#292
This is good for me cause during the day I can't revise at all! Night time just seems more peaceful and better to revise!
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diamonddust
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#293
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#293
(Original post by chuck111)
the suns beginning to rise ow what a wonderful night of revision lol if i go till 6 means i havent slept for 24 hours lol OO thts so bad
Never thought I'd hear wonderful and revision in the same sentence lol

And not good! You need to sleep! /hypocritcalness (:p: )

Ok more revision...

Breathing in (Inspiration)

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The external intercostal muscles in the diaphram contract.
Internal intercostal muscles relax.

Ribs are pulled upwards and outwards causing the volume in the thorax to increase.

The diaphram muscles contract, causing the diaphram to flatten which also increases the volume in the thorax.

The increased thorax pressure decreases the lung pressure.

Air is forced into the lungs.



Essential features of exchange surfaces...

Must have a thin diffusion pathway- to keep the diffusion pathway short and allow materials to diffuse rapidly

Partially permeable - allow selected materials to diffuse easily

Must be movement of the enviromental medium- eg air- to maintain a conc gradient

Must be movement of the internal medium- eg blood- to maintain a conc gradient

Diffusion of gases between alveloli and the blood supply are rapid because:

*alveloli and pulmonary capilleries have a very large total surface area

*walls of both alveoli and capillaries are very thin and so the distance over which diffusion takes place is very short

*blood flow through the pulmonary capillaries maintain a concentraion gradient

* red blood cells are slowed as they pass through pulmonary capillaries allowing more time for diffusion





:eek3: I don't know enough. And I have a whole unit to go!


Symptoms of Fibrosis

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Shortness of breath

WHY: because the air space in the lungs is occupied by fibrous tissue. Less air and less oxygen is being taken into the lungs in each breath. The thickened epithelium means diffusion is slower as the diffusion pathway is increased.


Chronic dry cough

WHY: The fibrous tissue creates an obstruction in the airway of the lungs. The body's reflex trys to expell the obstruction by coughing however, it cannot be expelled so the cough is described as dry.

Pain and discomfort in the chest

Why: There is pressure and so damage from the fibrous tissue in the lungs and further scarring and damage is caused by coughing.



ASTHMA

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Allergens cause while blood cells on the linings of the bronchi to release antihistamine.

The lining of the airways becomes inflamed.

The cells of the epithelial lining produce more mucus than usual.

Fluid leaves the capillaries and enters the airways.

The muscle surrounding the bronchioles contract and so constrict the airways.
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Lorniebee
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#294
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#294
Nice to know I'm not the only person living off relentless to stay up all night =)
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Tinkerbelle ♥
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#295
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#295
I've just realised my mum is going to think i'm an absolute nutcase when she gets up for work, comes down for breakfast and a cup of tea to find her daughter in exactly the same place she was left last night, red-eyed and flustered in a mumbling mess about biology, foxes and needing to stay up the longest...
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Tinkerbelle ♥
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#296
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#296
(Original post by chuck111)
THYMINE :d:d:d:d:d:d
THANK YOU!

*runs off to add that to notes*
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diamonddust
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#297
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#297
And guys, when do we decide the competition ends? How do we pick the winner?
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Ijustdon'treallyknow
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#298
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#298
Okay guys, I think I'm going to call it a night (or morning, rather ) I'm not tired so if I can't sleep I might come back on but I'm gonna try!

bye! Will check tomorrow to see who the winner is!
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chuck111
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#299
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#299
(Original post by Tinkerbelle ♥)
THANK YOU!

*runs off to add that to notes*
:woo: LOL umm YOU KNOW WHICH BASES ARE PURINES AND PYRIMIDINES right?

soz for the caps lol so tired cba to rub it out and type it out again
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Tinkerbelle ♥
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#300
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#300
(Original post by chuck111)
:woo: LOL umm YOU KNOW WHICH BASES ARE PURINES AND PYRIMIDINES right?

soz for the caps lol so tired cba to rub it out and type it out again

A + T = purines

C, G + U = pyrimidines

i think...
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