ANALYSING DATA on LUNG DISEASE: Risk Factors, spirometer trace and correlation. A-level Biology.

[@anaisp8622]

This is so useful! I thought I needed to know all the symptoms/causes of each disease. You will save me a lot of time :)

[@MissEstruchBiology]

Ah that's good! If you're ever uncertain, check the specification online and it tells you what you do / do not need to learn 😊

[@aaronrajimon312]

Thank you soo much for helping me , im going through all your videos for my exam in the next two weeks and it has really helped me, thank you for the support really appreciate it :)

[@MissEstruchBiology]

You're very welcome Aaron! So glad they are helping you with your revision. Wishing you the best of luck for you exams 🤞💪🙌

[@alisalis1568]

could you please make a video on how to do higher marker applying your knowledge questions? such as interpreting data and suggest why questions about req practicals

[@MissEstruchBiology]

Hey I have videos of some of this already- have a look at my exam technique playlist ☺️

[@DabSavageee]

Really good, thank you!

[@MissEstruchBiology]

Glad you liked it!

[@tayyabanawaz3479]

Hi. I was wondering if you could help. All the three diseases, fibrosis emphysema and asthma their FEV1 is reduced. Because at the alveoli, theres is decrease in concentration gradient which would affect the co2 going out so FEV1 would be affected for all. And FVC Would also affect asthma, Fibrosis and emphysema because in asthma if less air is getting into the lungs at slower rate than the volume of lings reduces. So probably affects FVC of all. I don’t understand the FEV AND FVC for the diseases. And the way it’s assessed in EQ it confuses me. Example oke question was on how Fibrosis FVC is affected but asthma FVC is not affected. I dont get why. Can u plz explain. Thanks!! :)))

[@jasonsingh9698]

Hi, do we have to memorise the pulmonary ventilation formula?

[@MissEstruchBiology]

yeah, that could come up

[@parnianaryana3811]

Thank u so much

[@MissEstruchBiology]

you're welcome 😊

[@Rayaann]

Thanks so much ❤❤❤

[@MissEstruchBiology]

You're welcome 😊

[@Idk12930]

9:17 I'm confused as to what you mean when you say the data overlaps

[@StudyAlevel]

Basically saying that the data between the different amounts of cigarette smoked is not that different. since those four points are very similar, if you just look at those, there is no correlation.

[@Idk12930]

​Ohh, thanks so much!! ​@@StudyAlevel

[@Hdjdjdhdhdbdhdbjd]

is this calculation still required in the new spec?

[@ris4314]

For AQA, yes

[@riyajames8987]

The spec also says students should be able to evaluate the way in which experimental data led to statutory restrictions on the sources of risk factors. What does this mean? And great video!!

[@alisalis1568]

I don't understand it either

[@riyajames8987]

@@alisalis1568 hiya, emailed Miss Estruch and her reply was 'This means that if you were given an exam question with data on the impact of different risk factors, you have to be able to analyse the data to explain how those factors cause potential damage and therefore led to recommended daily allowances.'. Hope that helps :)

[@Nickuxx7]

crystal in my hand whilst watching this 😂

[@clipHero369]

is this relevant for cie?

[@MissEstruchBiology]

I've had a look at your spec for 2019-2021 and below is what I states you need to know. So if it came up it'd be an application question 9.1 The gas exchange system The gas exchange surface in the lungs is extensive, very thin, well supplied with blood and well ventilated. The trachea and bronchi provide little resistance to the movement of air to and from the alveoli. a) describe the gross structure of the human gas exchange system b) observe and draw plan diagrams of the structure of the walls of the trachea, bronchi, bronchioles and alveoli indicating the distribution of cartilage, ciliated epithelium, goblet cells, smooth muscle, squamous epithelium and blood vessels c) describe the functions of cartilage, cilia, goblet cells, mucous glands, smooth muscle and elastic fibres and recognise these cells and tissues in prepared slides, photomicrographs and electron micrographs of the gas exchange system d) describe the process of gas exchange between air in the alveoli and the blood 9.2 Smoking Smoking is one of the major avoidable risk factors of chronic, life-threatening diseases of the gas exchange and circulatory systems. a) describe the effects of tar (and the carcinogens it contains) in tobacco smoke on the gas exchange system with reference to lung cancer and chronic obstructive pulmonary disease (COPD) b) describe the short-term effects of nicotine and carbon monoxide on the cardiovascular system