Grade 9 | AQA Biology Paper 2 | Whole paper revision

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00:00:00 start
00:00:45 Topic 5; Homeostasis and response
00:02:10 The nervous system
00:09:33 The brain [Separate Biology Only]
00:12:16 The eye [Separate Biology Only]
00:15:35 Control of body temperature
00:17:05 The endocrine system
00:18:47 Control of blood glucose
00:21:46 Maintaining water and nitrogen balance [Separate Biology Only]
00:24:50 Kidney structure and function [Separate Biology Only]
00:29:15 Human reproductive hormones
00:32:49 Contraception
00:35:36 Infertility treatment
00:38:17 Thyroxine
00:40:44 Adrenaline
00:41:54 Plant hormones [Separate Biology Only]
00:47:13 Topic 6; Variation, Evolution and Inheritance
00:48:15 Reproduction
00:49:56 Meiosis
00:56:38 DNA
00:59:33 Protein synthesis [Separate Biology Only]
01:01:56 Genetic Inheritance
01:10:03 Sex determination
01:11:04 Variation
01:12:35 Evolution
01:14:48 Selective Breeding
01:16:42 Genetic Engineering
01:19:34 Cloning [Separate Biology Only]
01:21:55 Theory of Evolution [Separate Biology Only]
01:26:06 The understanding of genetics [Separate Biology Only]
01:26:56 Evidence for evolution
01:29:02 Extinction
01:30:39 Resistant Bacteria
01:32:10 Classification
01:37:14 Topic 7; Ecology
01:38:14 Interdependence
01:40:42 Abiotic and Biotic Factors
01:45:02 Adaptations
01:47:43 Organisation of an ecosystem
01:51:43 carbon cycle
01:53:07 water cycle
01:54:02 Decomposition [Separate Biology Only]
01:58:20 Impact of environmental change [Separate Biology Only]
02:00:04 Biodiversity
02:01:24 Pollution
02:03:15 Land use
02:05:30 Deforestation
02:06:38 Global warming
02:08:29 Maintaining biodiversity
02:09:41 Trophic Levels [Separate Biology Only]
02:11:33 Pyramids of biomass [Separate Biology Only]
02:14:35 Food security [Separate Biology Only]
02:19:12 Role of biotechnology [Separate Biology Only]

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[Rachelhassan]

who else cramming the morning of the exam 💀

[leenamakkawi]

We REALLY appreciate how quickly you're uploading these! I already know it is going to be extremely useful as they have helped so much so far!!! THANK YOU

[Bilaaslam]

Literally last minute cramming thanks for your videos watched it right before the exam and the topic came up x

[Aeon.]

Yet again, your videos saved me. I made notes on all of the topics and committed them to memory the day before and it all worked out. Thank you so much for taking the time to make the videos--I'm certain that I'll get an 8-9 and it couldn't be done without your resources.

As for what came up on the exam:
- Classification (Wallace and Darwin)
- ADH and the effect on urine concentration and volume
- Kidneys; specifically about glucose, urea and protein
- Auxins in the roots and geotropism; first apparatus was stationary on its side, the second was spinning
- Peat came up, specifically the effect on the environment from the destruction of peat bogs and the use of peat
- Hormones to help with Infertility and contraception came up as a six marker
- The second six marker was about genetically modified soya beans plants and herbicides (glyphosate) -- GM soya beans were resistant to the herbicides and we had to talk about how to increase production of soya beans
- Biomass Pyramids and ratios of biomass
- Alleles for cystic fibrosis and polydactyly -- tree diagrams for cystic fibrosis
- Punnett square three marker for cystic fibrosis
- Defining homeostasis
- Labeling glands with secreted hormone examples
- Mathematics question (5 marker) about unit conversion (hectares to metre^2 and tonnes to kg) and energy in biomass; chickens and maize
Each kg of maize seeds gave 16MJ of energy
Chickens need 46MJ of energy
16.4T per hectare
1 hectare = 10000m^2
Work out area in metres^2 to 3sf

[temzking]

Your actually a saviour to everyones gcses i appreciate you so much!

[aasthakhandelwal]

MASSIVE MASSIVE HELP!! Literally saving me the night before my exam

[haidersyed]

thank you i used you for all my gcses so far and its been going amazing so far

[HenryTrn-ekzl]

When will the p2 of physics and chemistry be coming out love these videos and would ideally like to watch and make nots on over the half term
Thanks

[sportscommentaries]

The audio quality isn’t very good, sometimes it’s hard to hear key points, but it helps a lot, thanks

[itzfroggie]

Anyone else just starting revision for all this now…

[mustafatv]

when is the chemistry and physics paper 2 videos coming out? these videos are very helpful 👍

[backtoes]

anyone here b4 their bio test? good luck

[hannahm]

bro thank u so much but ur mic and audio quality always goes so bad at the end and i have to keep rewinding to understand wht is being said

[Fatima]

@Primrose Kitten have you uploaded your predictions for paper 2 aqa science??

[angelsquado]

Tysm for this video, these vids saved me for chem and physics (I didn’t watch it for bio unfortunately) hopefully i will do really wel for paper 2 as well!

[fuse]

Anyone else aced paper 1 and only now realising they know nothing for Bio P2?

[carmenmankarious]

In the eye I thought hyperopia can be fixed by a lens which converges light rays not diverged light rays 15:12

[arz]

Omgggg thank you againnn for uploading so soon again! A HUGE THANK YOU for your work😭

[rrgo]

Paper 1, 1hr 30 minutes video ❤❤❤

Paper 2. 3hrs....💀💀💀

[JennieLatham-vfdg]

oh my god awesome now I can use this to revise for half term