Module 5 OCR A level Biology: Nervous and hormonal response| Responses| Respiration | photosynthesis

[@michealadeleye7476]

(self-note) 1:16:55 Photosynthesis 1:28:17 Respiration 6:53 Liver 12:55 Kidney

[@anikaka6921]

just a point positive feedback does not count as homeostasis because it doesn't keep internal envirmonets constant, this is a small error but a key concept which is tested in exams

[@YG2812]

I'm here to self-teach myself Year 13 content before September and this really helped, I appreciate it. Thanks so much! :D

[@MissEstruchBiology]

You're so welcome!! Glad it helped

[@arjunreddy-oi7wm]

you neek

[@benjaminchadwick3318]

At 01:20:00 (photosynthesis) aren’t the wavelengths the other way around? I.e. PSII is 680nm PSI is 700nm Also a big thanks for these summary videos!!!!

[@shafinbepary2000]

are you able to do past paper walk through?

[@Hello-ze1sd]

Thank you so much! This is so helpful for my last minute revision I really appreciate this:) xxx

[@MissEstruchBiology]

You're welcome! Good luck

[@Hello-ze1sd]

Thankyou!

[@tobyabrahams7441]

you didn't mention auxin and apical dominance nor gibberellins and seed germination in the plant responses topic which are in the specification

[@yagmurxx869]

she also didnt explain the process of nueromuscular junctions, which is a part of the spec

[@kxllix]

you are the love of my life

[@philippaboosey3687]

night before paper 1 😭

[@ben8939]

best of luck buddy - i’m in the same situation 😭😭

[@caoilainnix]

we got this 💪

[@MissEstruchBiology]

good luck!!

[@AyahAl-Sayed]

Same bro same

[@punsavalino]

so cooked fam 😂

[@kameronchander]

I was waiting for this one!!! Thanks miss xxx

[@MissEstruchBiology]

You're welcome 😊 Hope it helps

[@yumnabarhamji1700]

Brilliant easy to understand explanations, Thank you.

[@dhej6262]

14:20 I think you have made a mistake here Shouldn’t the ascending limb and descending limb be the other way around?

[@philippaboosey3687]

No

[@Sarah-pc1di]

I thought so too! Because doesn’t the high ion concentration in that interstitial space between the collecting duct and ascending limb cause water to move out of the collecting duct via osmosis so they need to be next to each other

[@matildaskitchen6877]

Hi, my textbook says photosystem 1 absorbs light at a higher wavelength at 700nm than photosystem 2 at 680nm but on your video you say the opposite?

[@aroushmalik7216]

I think she made a mistake

[@NastazjaKrysinska-iw3gu]

absolute godsend my exam is in 2 hours

[@queennora6944]

1:29:57 shouldn’t it be glucose biphosphate as there’s 2

[@philippaboosey3687]

No

[@calebmall3786]

So helpful thank you !!!!!🐐

[@MissEstruchBiology]

You're so welcome 😁

[@EmmaAllman-d2o]

Thank you so much, Does this cover all the content required for module 5.

[@MissEstruchBiology]

Yes, entire summary video

[@aliyahh403]

OMG OMG OMG THANK YOU

[@MissEstruchBiology]

You're so welcome 😁😁

[@tanvirahmad1409]

i like these videos however my only issue with it that if i go for a few mins away ad come back i have to restart the topic that im on

[@dancray5220]

How about the excitatory synapses?

[@AvaMariaLeCornu]

Hi i think you made a mistake when talking about the wavelengths of the photosytems PSII= P680 and PSI= P700 1:20:19

[@imaansheikh3175]

This is great thanks- when will you be doing the topic 6 video :)

[@MissEstruchBiology]

so pleased you like it. Uploading at 4.30pm tomorrow

[@NanaAmzzz]

Watching this an hour before exams 😅

[@Emmam-xs1eu]

thank you so much this is brilliant! is making flashcards from this and then doing exam questions good enough to get a B in a level bio?

[@MissEstruchBiology]

Great idea to make flashcards from the vids! Exam questions and practise will be key to boosting your grade.

[@shafinbepary2000]

@@MissEstruchBiology mark scheme is my best friend

[@hh-bb2zw]

Hi miss I really appreciate this! Would you say that this contains all the information required by the spec or should we use the coursebook as well and go more in detail?

[@user-nf2su4xq4z]

I would probably look in the textbook as well

[@harlinebagga8476]

hi the free guide link doesn't work, how else can we access this?

[@julia-pn2oj]

i'm cooked

[@jennaaa-21]

same

[@julia-pn2oj]

@@jennaaa-21 currently LEARNING about ✨hormonal communication✨not revising because i cba in lesson 🔫 i'm burnt

[@jennaaa-21]

@@julia-pn2oj REALL but girl dont use these vids they actually miss parts of the spec out, use clare biology, her vids are relatively short too, good luck!!

[@julia-pn2oj]

@@jennaaa-21 yea i just checked out this vid to see how long she explained for each topic! i've been using biorach instead but might switch over to clare because i noticed that biorach doesn't have anything on dialysis! thank u :) & good luck (hopefully i can get a C omg)

[@jennaaa-21]

@@julia-pn2oj dw girl u can defo get a C just by watching videos u got this, also dialysis is being removed off the spec after this year so its not likely it will come up apparently. the main predicted topics r : transport in plants, excretion (liver only) and respiration

[@lexihamilton4168]

I have type 1 diabetes so my family has kept up to date with research for treatments for type 1. Sadly stem cell use as a treatment for type 1 diabetes has already been tried and it only worked temporarily due to type 1 being an autoimmune condition the new cells were attacked and destroyed in the same way the original beta cells were. Success was only seen for type 2 patients as their condition was not caused by an autoimmune disease. Should I still write that it's a potential treatment for type 1 even though I know that it isn't effective? I'm stressing now lol.

[@MissEstruchBiology]

Science progresses and improves constantly, so often the specs become outdated BUT if it's on the spec it's what they exam board will accept

[@Ripple007]

thanks g

[@ninofg3936]

positive feedback loops are not part of part of homeostasis because they don’t involve keeping the body temperature constant

[@millybalchin5914]

Homeostasis isn’t just about body temperature, it’s about maintaining a constant (and optimal) internal environment. That can mean ion concentration, temperature etc

[@viridia1526]

@@millybalchin5914homeostasis remains a constant internal environment. There are 2 types of feedback: negative = feedback that minimises changes in the body to keep equilibrium despite small fluctuations. And positive = amplify a response like female lactation. Homeostasis involves negative feedback, but positive amplifies a response and doesn’t maintain a constant environment for the body, so i doubt its a part of keeping homeostasis.

[@ik2295]

thank you very much :)

[@yusufspahi1693]

wheres the ornithine cycle?

[@mollyparkhurst9374]

11:47

[@AyyyyitsDre]

Morning of paper 1 🥲

[@MalakiHarris]

i am cooked

[@amirbhatt2915]

Does this video cover all specification points for OCR A?

[@AngelIsTakn]

dont use this trust me

[@amirbhatt2915]

@@AngelIsTakn how come?

[@stackinwitdee2]

@@amirbhatt2915miss estruch is good, but she makes a couple mistakes and misses some parts of the spec

[@arjunreddy-oi7wm]

just on neuronal communication having a bit of trouble regarding your understanding of neurone structures. I have always learnt the axon carries the impulse away fro the cell body however you seem to believe otherwise. many students are relying on you as a source of accurate information, do better.

[@MissEstruchBiology]

hey, not sure which part of the video this is referring to but I will take a look and check

[@arjunreddy-oi7wm]

@@MissEstruchBiology This happens when you're explaining structures of motor and relay neurones

[@Diorfitzz]

great content but unfortunately you talk a bit fast for me so i cant process what you’ve said before you move onto the next part:(

[@imkokothemonkey]

same. what worked for me was slowing down the playback speed by .25, and pausing and making notes when needed

[@Sarah-pc1di]

❤️❤️❤️