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Edexcel A2 Biology Unit 5 (6BIO5) - 22/06/2011- OFFICIAL THREAD !

Unit 5: Energy, Exercise and Coordination

This unit is worth 40% of your A2 grade and 20% of your total A Level grade.

Content summary:

•

*ATP, glycolysis, anaerobic/aerobic respiration
*control and functioning of heart; ventilation and cardiac output
*homeostasis
*the nervous system
*impact of exercise on body, and improving performance
*hormonal coordination
*brain structure and development
*imbalances in brain chemicals
*Human Genome Project.

Assessment:
This unit is assessed by means of a written examination paper, which lasts 1 hour 30 minutes.

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Reply 1

shuvo_roy

Yea right......its time for the discussion of scientific article. This time its on Brain and nervous system!!

June 2010 Scientific Article for 6BIO5 Biology.pdf117.6KB

Reply 2

sidrah

The article could link to so many things from previous topics!
Even the CHD stuff from topic 1.. I'm glad it's a third of the marks though, that takes a bit of pressure off topics 7 and 8.

Reply 3

Doughboy

shuvo_roy

Yea right......its time for the discussion of scientific article. This time its on Brain and nervous system!!

Thanks

Sixteen freaking pages.

The main theme of the article seems to be based primarily on Unit 5 work =[ More specifically, as shuvo_roy pointed out, it focuses on the nervous system O_O

The article is divided into:
It’s All in the Mind
Dancing Worms and Deep Depression
Stressed Out
Pain and Gender

We can analyse each section and then sum up everything. I should point out that in the old SNAB syllabus, Unit 6 was the 'article paper'. I will upload a past paper pack with all the past Unit 6s I have.

16 pages

Doughboy

Thanks

Sixteen freaking pages.

.

the article is 12 pages....come on why do you count the blank pages and make people nervous!! ... :shock:

Reply 6

Doughboy

So when do we start summarising?

I get headaches from reading that thing :<

Reply 7

nightwalker123

so....when do we begin? :smile:

Reply 8

Pedus

Ah, I am so glad that the article is worth a lot of marks... Could really bank on getting high marks for this section..

We seriously need to start getting a discussion going on this sooooon!

Reply 9

nightwalker123

hey can someone help me with the sample Unit6B paper ...the experiment...coconuts?......:\

Reply 10

sadmollz

Doughboy

So when do we start summarising?

I get headaches from reading that thing :<

:O Those revision notes! Have you finished the syllabus already?!

Reply 11

Doughboy

No. I tried doing some nervous system today but I was too tired!

Reply 12

angelikgrrl

Tomorrow we are having mocks from unit 5 and 6B so studying :/

Reply 13

angelikgrrl

nightwalker123

hey can someone help me with the sample Unit6B paper ...the experiment...coconuts?......:\

In short, you have to use a transect and the whole procedure and the variables to be controlled is surrounding vegetation, slope, light intensity...
Then have to use the Spearman's rank correlation test in (d)

Reply 14

h-star

I have no clue what you guys are talking about.. I feel like I'm not even taking this exam :sigh:

Reply 15

nightwalker123

angelikgrrl

hmm.........wat about the prliminary experiments?......thnx btw

Reply 16

shuvo_roy

hey can anyone explain me what's t-test?

Reply 17

nightwalker123

t-test is a statistical test that is applied to interval data. it can be applied to matched or idependant samples.
criteria for t-test:
1.samples are small(<30)
2.the population or population of differences(matched) are normaly distributed.
3.the standard deviation of the population is not known.

Eg. calculated t-value= 3.25 and the t-crit value (at 5% significance level)= 2.09.
In this example the positive value ot t (3.25) is greater than the t-crit value(2.09) so reject the null hypothesis and accept the alternative hypothesis.

hope that clears your doubt mate.