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Edexcel A2 Biology Unit 5 (6BIO5) - 22/06/2011- OFFICIAL THREAD !
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Doughboy
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#1
Unit 5: Energy, Exercise and Coordination
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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.
Resources:
Specification
Sample Paper , Scientific Article for Sample Paper
6BI04+5 Notes
Scientific Article for June 2010
Old SNAB Unit 6 Article Past Paper Pack
Let us use this thread to discuss preparations & difficult problems and to analyse the scientific article. We can formulate glossaries and possible questions from the article and we can summarise important data as well.
Good luck guys! Let the discussion begin!
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shuvo_roy
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#2
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#2
Yea right......its time for the discussion of scientific article. This time its on Brain and nervous system!!
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sidrah
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#3
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.
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.
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Doughboy
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#4
(Original post by shuvo_roy)
Yea right......its time for the discussion of scientific article. This time its on Brain and nervous system!!
Yea right......its time for the discussion of scientific article. This time its on Brain and nervous system!!
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.
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h-star
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#5
shuvo_roy
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#6
(Original post by Doughboy)
Thanks
Sixteen freaking pages.
.
Thanks
Sixteen freaking pages.
.
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Doughboy
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#7
So when do we start summarising?
I get headaches from reading that thing :<
I get headaches from reading that thing :<
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nightwalker123
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#8
Pedus
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#9
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!
We seriously need to start getting a discussion going on this sooooon!
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nightwalker123
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#10
hey can someone help me with the sample Unit6B paper ...the experiment...coconuts?......:\
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sadmollz
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#11
(Original post by Doughboy)
So when do we start summarising?
I get headaches from reading that thing :<
So when do we start summarising?
I get headaches from reading that thing :<
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Doughboy
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#12
angelikgrrl
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#13
angelikgrrl
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#14
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#14
(Original post by nightwalker123)
hey can someone help me with the sample Unit6B paper ...the experiment...coconuts?......:\
hey can someone help me with the sample Unit6B paper ...the experiment...coconuts?......:\
Then have to use the Spearman's rank correlation test in (d)
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#15
I have no clue what you guys are talking about.. I feel like I'm not even taking this exam 
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nightwalker123
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#16
(Original post by angelikgrrl)
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)
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)
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shuvo_roy
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#17
nightwalker123
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#18
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.
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.
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TTTA
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#20
Do we need to know about statistical tests for unit 5? I used these in the coursework but that is it..
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