EDEXCEL Biology JUNE 2012 Pre-release article

AS cw >> A2 cw

Nah A2>>AS, because i had more of a choice. My AS is 'Is using unpasteurised milk to make cheese safe?'

I had more of a choice at AS than A2
AS was about OCD and was interesting
A2 about plants and light

I really,really wanted to do Synaesthesia, but had no idea what to do with it. doing it as a issue report at AS would have been difficult because afaik theres no cure, and its something we don't tend to seek a cure for.

what's synaesthesia about

some people have it where numbers and/or letters are coloured, where words taste of things. Basically 'In one common form of synesthesia, known as grapheme → color synesthesia or color-graphemic synesthesia, letters or numbers are perceived as inherently colored,[7][8] while in ordinal linguistic personification, numbers, days of the week and months of the year evoke personalities.[9][10] In spatial-sequence, or number form synesthesia, numbers, months of the year, and/or days of the week elicit precise locations in space (for example, 1980 may be "farther away" than 1990), or may have a (three-dimensional) view of a year as a map (clockwise or counterclockwise).[11][12][13] Yet another recently identified type, visual motion → sound synesthesia, involves hearing sounds in response to visual motion and flicker.'

I have this one: lexical → gustatory synesthesia, individual words and the phonemes of spoken language evoke taste sensations in the mouth. Which is always fun when letters with umlauts taste like licquorice, yet you hate the stuff. If you've one type of synaesthesia, you've usually got another

Hey guys!

Anybody got any ideas on the area: MEDIA AND EVOLUTIONARY ADAPTATION?
Apart from calculating BMI, I cannot see anything else that they can ask from this...
We haven't learnt about attractiveness in females so I doubt that will come up

hey
did anyone come across this website ?
http://edexcelbiosolutions.com/
it seems very useful for unit 5 article..
and does anyone have this pdf file ?

Hey guys!

Anybody got any ideas on the area: MEDIA AND EVOLUTIONARY ADAPTATION?
Apart from calculating BMI, I cannot see anything else that they can ask from this...
We haven't learnt about attractiveness in females so I doubt that will come up

LOL ¬.¬


Heres my ideas, would appreciate people to get some answers for these back


What causes brown adipose tissue to be activated by the cold? (Para 1)

What causes obesity? (Para 2)

Correlation vs Causation.. (Para 3)

WAT is strongly correlated but what other factors cause heart disease and cancers? (Para 3)

What part of the brain is linked with eating disorders? (Para 6-8)

How is a fMRI carried out and what does it show? (Para 8)

How are the PFC and amygdala "significantly activated"? (Para 12)

What effect does the media have on visual perception? (Para 15)

Exposure to high levels of cortisol can mean higher blood pressure, how does this affect formation of atheromas/atherosclerosis occuring? (Para 18)

Suggest reasons why some people believe animal testing is wrong (Para 19)

BAT contains lipids, draw the structure of the fatty acid triglyceride (Para 28)

Explain why long distance runners would have more brown fat cells (Para 28)

Compare the Nervous system with the hormonal system within humans (Para 29)

Explain how the sympathetic nervous system responds to cold temperatures (homeostasis) (Para 29)

Explain the clinical trial steps leading up to drugs being available for administration to make sure there are no severe side effects(Para 36)

Explain how a gene is expressed (Para 40)

suggest ethical reasons against the use of embryonic stem cells (Para 41)

Explain how stem cells differentiate to become specialised cells (Para 41)

How are proteins synthesised? (Para 45)

Describe how individuals are more susceptible to diseases due to genetics? (Para 46)

Describe how HIV/AIDs develops when heterosexually contracted (Para 52)

Possible question on media bias...

Fantastic! Thanks so much for this! Its great that we can start to see a pattern of questions emerging now
ps: I will get back to you on the answers, let me write out and then answer them

Nah A2>>AS, because i had more of a choice. My AS is 'Is using unpasteurised milk to make cheese safe?'

Hey Man what's this coursework you guys talking about? I live in Germany and I'm home studying, I've never heard or done coursework before not even when I was in school? Can you guys give me a Heads up

I'll take it you're an international candidate, so you sit a written paper for both unit 3 and 6 (I think. I know this is the case for Edexcel chemistry), whilst candidates based in the UK, do coursework.

Let us all post possible questions to get started. I will start:

On the last line of paragraph 52 on page 8 of the Scientific Article, there is a statement about the number of women dying because of HIV/AIDS. Explain how the disease caused by HIV has a sequence of symptoms that may result in death.

On paragraph 3 of page 1 of the article, there's a statement : "Obesity is defined as a surplus of body fat which is detrimental to health. This fat, or white adipose tissue (WAT), is located underneath the skin and around the internal organs and stores excess energy in the form of triglycerides."
Describe the structure of a typical fat molecule. Support your answer with a diagram of the fat molecule.

On paragraph 3 of page 1 of the article, there's a statement: "WAT located around the abdomen (giving rise to the ‘apple’ body shape) is considered more dangerous than fat stored around the hips and thighs as it is strongly correlated with type 2 diabetes, heart disease and certain types of cancer."
- Explain what is meant by a correlation
- Explain the difference between a correlation and causal relationship
- Explain why WAT located around the abdomens is dangerous for the heart
- Describe and explain what may lead to obesity

On paragraph 8 of page 1 of the Scientific Article, there's this statement: "Neuroscientists at Brigham Young University in Utah examined subconscious feelings about body image through fMRI analysis of the brains of healthy men and women who were assessed psychometrically as being confident with their bodies."
- Describe and explain how functional magnetic resonance imaging (fMRI) scans can be used to investigate brain structure and function.
- There's another imaging technique called Magnetic Resonance Imaging (MRI).
Describe and explain how Magnetic resonance imaging (MRI) scans can be used to investigate brain structure and function.
Compare MRI and fMRI scans.

Hope you find them useful. Use your knowledge and understanding to answer them.