Nepal and Ads

Hello all loyal friends and fresh new faces,

I hope that you are keeping zen about your upcoming exams- I'm here for ya.

Since January have been in Nepal! Volunteering with Restless Development helping to improve livelyhoods and employment prospects in poverty stricken communities- check out my pics for a revision brake or give a little donation if you can (even a couple of quid goes a long way).

It was an amazing experience and our work benefited so many people! Unfortunately though, there was nooooo wifi what so ever (I know), so I haven't made any adjustments in a while.

So whilst I'm doing this keep an eye out for any helpful points in the comments (thank you so much for everyone who takes the time to comment feedback and corrections, keeping hannahhelp alive).

One more point, which is that I am going to put some ads on the blog.

Though this may be controversial I hope y'all understand: I am trying to get together money for a plane flight to Africa so that I can volunteer there with a charity working to prevent the spread of AIDs in the young population.

Do let me know if you think they are obtrusive or affecting your revision, because I can always take them down, but if not it's a win win- you're getting hannahhelp and I'm getting p ;)

Remember to work hard and relax hard- no slacking, no stressing. Ok?
Best of luck,
Hannah x

Thanks

Hello all,

I just wanted to say a massive massive thank you to everyone who has commented on my blog over the years.

I've just tried to filter through some of the comments to make final corrections, as I have finished my schooling career so probably won't revisit hannahhelp to make edits in the future, and it has reminded me how lovely you all are.

People have written me the nicest praises and thanks that you could imagine and I am so grateful- I am just sorry that I can't reply to them all individually any more because there are so many! Just know that your words have touched me and I am thankful.

Corrections have been so helpful too as firstly (as you probably know) I can't really spell haha and secondly they have ironed out mistakes that I made. People have also added links and extra information, which has turned this from my blog into an even richer resource, acting as a hub for knowledge.

One of the best things that I have seen is people asking questions and other readers answering them! Asking questions gives an opportunity for clarification, not just for the person who asked but for everyone reading; and people who have given answers I commend you for giving your time to help me and everyone else.

I really hope that this culture of adding, debating and aiding continues even after I completely stop editing :')

Thank you all so much.
Happy to have helped ;)
Hannah.

Apology

Thank you guys for all your comments that are coming in, I really do appreciate it.

Unfortunately I am also doing exams at the moment and there just isn't time to reply to them all.

I promise I will amend and converse as soon as I have the time!

Best of luck for your GCSEs!

Hannah :)

2.90 understand the sources, roles and effects of the following hormones: ADH, adrenaline, insulin, testosterone, progesterone and oestrogen.

ADH
Lack of water is detected by the hypothalamus in the brain, it causes the pituitary gland to produce Anti-diuretic hormone, or ADH. This makes the kidneys to reabsorb more water- so less is lost from the body.

Adrenaline
Produced in the adrenal glands in stressful situations. Heart rate quickens to increase the flow of blood to muscles- this means that they can respire more (as there is more oxygen available) to provide energy if you need to 'fight or flee'.

Insulin
Produced in the pancreas when there is too much glucose in the blood. It stimulates cells to convert the glucose into glycogen which is a from that can be stored. This means that you always have the right amount of glucose in your blood.

Testosterone
Produced in ovaries in girls and testicles in boys. Plays a key role in puberty, developing sex organs and inspiring hair growth.

Progesterone
Produced in the ovaries it maintains the lining ready for pregnancy, and continues to do so if the egg is fertilised.

Oestrogen
Produced in the ovaries, it is controls other hormones to regulate the menstrual cycle. It stops the production of FSH and starts the production of LH.

3.33 understand that the incidence of mutations can be increased by exposure to ionising radiation (for example gamma rays, X-rays and ultraviolet rays) and some chemical mutagens (for example chemicals in tobacco).

There are things that make you more likely to have a mutated gene, these include: ionising radiation and chemical mutagens like some chemicals in tobacco.

3.32 understand that resistance to antibiotics can increase in bacterial populations, and appreciate how such an increase can lead to infections being difficult to control

Bacteria experience mutations (the reproduce very frequently so it is not rare.) These mutations can mean that they are no longer affected by a certain antibiotic, this makes it easier for them to survive. If bacteria evolve to be resistant to drugs we are treating them with then they are difficult to control; sometimes they can be stopped using a different antibiotic, but some are becoming resistant to all the drugs that we know of...

3.31 understand that many mutations are harmful but some are neutral and a few are beneficial

A lot of mutations are harmful, like genetic diseases; cystic fibrosis.
Some don't change the chances of survival: like having a different colour hair.
There are a few mutations which are beneficial, for example a insect pollinated plant becoming brighter.