3 Essay Titles You Should Plan 2024 - AQA A-level Biology paper 3 | Biology essay
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- Опубліковано 20 кві 2024
- Paper 3 for AQA A-level biology contains the 25 mark essay (almost 10% of your A-level grade). Follow along as I plan 3 titles that haven't come up in nearly 10 years, but are really good titles!
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I don’t know what I want more - An A in Biology or your skin care routine
haha thank you. A mix of The Ordinary and Temple Spa products and Il Makiage foundation and primer!
For tile 3 the importance of the controls of processes in organism , you said that you can talk about cholera but what would I write for the importance of that do I possibly liking it back to antibodies
Miss, @21:54 you mention GP forming, I believe you mean TP.
hi, are you going to post the predictions for the 2024 paper? i definitely will not only focus on those essays, just wanted to have an idea of what might come up :)
I back that question
This video isn't predictions, as I don't use the terminology predictions. . . . . . .
Bless
I couldn’t find online where the last essay came up in 2016 or 2015 ? Only thing close in 2015 was “the importance of proteins on the control of processes and responses in organisms” could you lmk where you found the title pls
I’m confused about the second title on energy transfer, your have talked about photosynthesis and respiration are these not in the same spec would I not just write about one of them. I remember my teacher saying to pick only either one rather than writing about them both.
hey they are both in topic 5, but different subsections so they do no count as the same specification points
hey do you sell predicteds papers at all?
Hi Thankyou for the video! I'd like to know for the out-of-spec topic, do I need to write a complete paragraph for it to get two marks or just mentioning it briefly in some paragraphs?
it needs to be more than a few words or a few sentences, but not necessarily an entire paragraph.
how do I find the examiner reports for legacy alevels
Such a helpful video, thank you! When the title says 'organisms' would you be penalised for speaking only about human biology and not mentioning plants, or does it not matter?
I'd probably talk about both.. I think that the examiners like people to use both year 12 and 13 topics. To be safe, at least do one on plants unless you physically cannot :)
If it’s organisms - always better to discuss more than just humans.
My teacher (who is also an examiner) said that they would prefer you to talk about both otherwise you’re not assessing the whole question as you’re only talking about one type of organism :)
Hi, I recently bought flashcards (AQA spec) from your website. I am not sure how to access them. Can someone please help me regarding this matter? Thank you
check your emails
I thought hypothalamus stimulates the pituitary gland to produce ADH hormone which is then released in the blood.
Hypothalamus produces it and the pituitary gland secretes it
yeah you're also right - that's what it says in the mark scheme. (But what goes beyond the spec is that it's produced by the hypothalamus and actually stored in the pituitary gland)
Would blood glucose concentration/ IAA and plant growth be classified as the same marking point in the new spec?
No,blood glucose control is it's own spec point for topic 6
I don’t quite get what you meant at about 8:13? Could you explain that point again please?
Essentially if the blood glucose concentration is too high, all glucose cant be reabsorbed via selective reabsorption at the proximal convoluted tubule in the kidney like it usually does (due to saturated co transporter proteins at the surface of the epithelial cells lining pct). Therefore some glucose will remain in the filtrate and be expelled from your body in the urine. Usually urine contains no glucose. hope this helps !!!
Hi. I quite often manage to bring in synapses in my essays , as it’s a topic I’m confident in. However, I always struggle when it comes to A-level importance for it . Like why is it important that we have action potentials? Thanks for your help! x
Hey! I too love talking about synapses (specifically transmission) in my essays! They can virtually go in anything :D I agree importance is hard, so perhaps this could help (its what I usually use for synaptic transmission)
Importance of sodium ions (Na+) is that they trigger the opening of voltage gated calcium channels in the presynaptic membrane. If the pre-synapse wasn't depolarised, calcium ions (Ca2+) wouldn't be able to (facilitated) diffuse into the membrane and vesicles containing neurotransmitters (NT) won't fuse to the pre-synaptic membrane. Therefore no diffusion of NT across the synaptic cleft, so therefore the NT won't bind to receptors on post-synapse and an action potential won't continue along the neurones and the signal is lost as NA+ cannot diffuse into post-synaptic membrane.
You can also use the above for importance of calcium ions, or diffusion of NT across the membrane, or reason for receptors/complementary shapes.
As you probably already know, acetylcholine (ACh) hydrolyses the NT in the synaptic cleft so the post-synapse isn't constantly depolarised. Therefore, if you could also discuss:
- If ACh isn't present/doesn't hydrolyse NT then continuous depolarisation of post-synapse will occur. Which could lead to myocardial infraction or muscle spasm due to constant depolarisation of muscles (contractions).
- If NT don't bind to receptors on post-synapse (due to whatever reason) then the signal is lost, and no response is given. For example no contraction of muscle, which could also lead to a myocardial infraction.
I hope this makes sense! This is also useful for then if you decide to talk about SAN node in the heart and therefore heart rate. Or pressure receptors in the skin (Pacinian corpuscle) or chemi/baroreceptors. (For linkage opportunities!)
Hope this is useful, sorry for it being such a long reply hahaha. Good luck with your Alevels x
@@YourGranHan you are an absolute LEGEND!! Thank you so so much for taking time out of your day to reply with such a helpful, detailed response. Will defo be using these in my essays, I appreciate you a lot!
@@Emily-su2dh No worries! Its useful revision for myself too hahaha :)
hi! i like to talk about ventilation for synapses/muscle contractions as saying 'muscle contraction is needed to avoid predators' feels too GCSE to me. So action potentials are important at the neuromuscular junction to stimulate muscle contraction of the external intercostal muscles and the diaphragm so the diaphragm flattens and the ribcage moves up and out, increasing the thoracic volume and decreasing the thoracic pressure, causing air to flow down its pressure gradient into the lungs. oxygen is required in many metabolic processes like respiration (or removal of carbon dioxide if you talk about expiration). That might be a more straightforward one for muscle contraction but i could see it working for synapses too with the neuromuscular junction which is defo a level knowledge. Hope that helps! (that was very useful for my own revision too haha)
@@funkypigeondotcom7917 ooo I never thought of how to link it to inspiration or expiration before! Thank you so much :))))
How does excess glucose in the blood cause more glucose being removed in the kidneys? How does this affect the glucose content in the liver?
When you have excess glucose in the blood, some of it is taken in for respiration by the B islets of langerhan in the pancreas. The atp produced by this closes the K+ channels in the cell and the change in voltage opens voltage gated calcium channels. This leads to the release of insulin by exocytosis. When insulin is released, it binds to the receptors in the liver and lead to increased respiration, more of converting glucose to glycogen etc
I’m not sure about your kidney question, but it could be that since the liver and muscle cells are taking a lot of glucose in, the glucose concentration decreases in the blood and it’s easier for glucose to leave the cells in the PCT via facilitated diffusion as the gradient is now steeper.
Wow how do you know all that😭
Hi, I hope you'r well. I heard you mark student's essays and give them feedback, if thats true can you please let me know how i can send you my essays as it would greatly benefit me, thanks
Hey! Yes I do. My essay marking service will start up again at the start of May. You'll be able to book in on my website
are osmoregulation and blood glucose regulation considered as a single topic?
no, they are different spec points
My teacher told us not to talk about IAA because there's not much difference between GCSE and A level content?
you talk about auxin at GCSE and IAA at A level ig
Hi, super helpful and detailed video! Just wondering what you could talk about for the importance of immunity? I'm assuming it's too brief to just talk about maintaining health and survival?
I think you could talk about the primary and secondary response and say how pathogens can be killed faster the second time as memory cells are present which rapidly produce more plasma cells (clonal selection doesnt need to occur again) so the immune response is important as it increases chances of survival the second time of meeting it and so more energy can be focused on other areas (e.g mating?). If any of this is incorrect do correct me! i am not a fan of the immunity topic :(
in the topics for the 3rd essay, wouldn't spindle fibres and IAA and osmoregulation be too simple for A level content? mitosis is basically gcse isnt it
As long as its different specification points it's fine. Mitosis is in A-level too, but you must have A-level terminology
With excess glucose in blood I don't think its removed in the kidney unless you have diabetes right?
I’m confused as well
in ultrafiltration all the glucose is filtered into the glomerular filtrate, and unless theres excess glucose its all reabsorbed at the PCT. If you have excess glucose (because of diabetes or if there is no insulin hypothetically) not all the glucose can be reabsorbed as the symport proteins in the epithelium of the PCT are working at maximum capacity/are fully saturated so some glucose is excreted in the urine. Does that answer your question?
Hi Miss Estruch, do you offer essays marking and feedback? is this something I can find on your website?
hey, yes I do. Bookings for this will start in May www.missestruch.co.uk/learn-with-miss-estruch
hi, what are all the equations we need to know by heart ?
hey I posted some tiktoks on this last year. I'll dig them out and report soon
Cardiac cycle and cardiac output
@@MissEstruchBiology i second this
more help on essays please =((
have you seen my essay playlist? Or take a look at my essay bootcamp
13:00 Why is it important to respond to pressure changes in our fingers?
protect your fingers from danger. The pressure could be squashing against something sharp that could cut skin example
@@MissEstruchBiology I’m pretty sure that would classify as GCSE no?
@@Ganothic yh my teacher always tells me to avoid GCSE-style comments at the end of the paragraph as it weakens the point..
i had thoughts to link to generator potential and muscle contraction could also mention neurons here. :)
Example could be to make the organism aware of it's physical surroundings and therefore allow it to move out of unfavourable conditions (such as rocky or sandy terrain) through processes of taxis and kineses and thus imporiving their chances of survival and reproduction? You could argue the converse by saying organisms wouldn't be able to carry out such functions if they didn't have paciniac corpuscles
ur cat is so cute
Bee the cat 🐈
hello miss estruch would you be able to go throguh full mark exemplar essay?
Hey, I have this in my Biology Essay Bootcamp
May I ask what percent do people get 25/25?
i think its usually around 1%
I thought the essays were in paper 2
Paper 3, comprehension is on paper 2
Nuh uh uh