GCSE Biology - Respiration #21

[@Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision easy as possible. The main features are: - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown. - Automatic progress tracking. Progress bars tell you at a glance what you’re doing well at, and what you need to spend some time on. - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like. - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts. - A comprehensive bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom

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If ur school took a week to teach respiration it's dunout anyway

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[@In3aneOP]

Notes for this video Cellular respiration is an exothermic reaction essential for releasing energy stored in glucose molecules, which are primarily produced by plants during photosynthesis. This process continuously occurs in living cells and involves breaking down glucose to transfer its trapped energy. Importantly, this does not create new energy but redistributes the existing one from glucose. Energy use 00:00:58 Organisms use energy for building larger molecules, muscular contraction, and maintaining body temperature. Energy is essential for numerous cellular reactions catalyzed by enzymes; collectively, these processes are termed metabolism. Metabolism encompasses all chemical activities necessary to sustain life. Aerobic respiration occurs when oxygen is available and efficiently transfers energy from glucose in plants and animals within mitochondria. Its equation-glucose plus oxygen forming carbon dioxide plus water-is the reverse of photosynthesis. Anaerobic respiration 00:03:01 Anaerobic respiration occurs without oxygen, typically during intense activities like sprinting when the body cannot supply enough oxygen for aerobic respiration. The process converts glucose into lactic acid but is less efficient due to incomplete glucose breakdown, as no oxygen is available to fully oxidize it. This inefficiency means not all energy from glucose is utilized. Additionally, lactic acid accumulation poses a problem since it must be removed later. Fermentation 00:03:50 In anaerobic respiration within yeast, glucose is converted into ethanol and carbon dioxide instead of lactic acid. This process, known as fermentation, has significant industrial uses. In bread-making, the carbon dioxide produced by yeast creates air pockets that make bread light and fluffy. Additionally, fermentation's production of ethanol enables its use in creating alcoholic beverages like beer and wine.

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thanks dom dom we're glad to hear you're enjoying them 😊

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how much of it came up on ur exam??

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did u pass??

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Thank you Sita! Really glad to hear it helped (and thanks for the comment it really helps the videos get seen so is a big help for us!). Good luck with all your work ✌️

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This video helped me much.Now I know what respiration.

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did you pass??????

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Would u be able to do a few videos on required practicals or practicals that would help us understand the topics more?

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Whoops, sorry Cognito, the accidental dislike was my fault, your videos are excellent and I removed the dislike and liked the amazing video. Sorry (for the accidental dislike), once again, your videos are amazing and I've recommended you to my science teacher. Keep up the brilliant work, and congrats on 200k+ subs!

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Haha no worries at all, thanks for all the kind words 🤩

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[@ColaSpandex]

So can you tell me where the mould growing on poorly stored vinyl records gets its glucose from? Or is that some next level Biology?

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[@trxnqui]

do you think we need to learn that extra stuff about metabolism in the cgp books

[@coldchickennoodles5575]

Is this respiration in humans or plants? because in 0:18 you said "originally made in photosynthesis" I'm confused

[@icarussoph]

Aerobic respiration occurs in both, but i think he meant that the glucose us humans use for aerobic respiration is made by photosynthesis, as we get our glucose from the food we eat, our body doesn't create it- and all biomass comes from plants as they're producers so yeah (i don't know if I'm 100% correct)

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Glucose is a product of plants...they are the first ones who are mking them😊

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[@omaraburizaizah7098]

do both anaerobic respiration and aerobic respiration give out heat?

[@duckyy-.]

Both processes are not 100% efficient, which means that some energy will be released in the form of heat. hope that answers your question after 2 years XD

[@MemesbyPotatoDude]

What basically respiration is, only respiration?

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An amazing video! All content covered in an easy-to-understand way. Great work and thanks so much.

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What' do u get?

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what apps do you use to make the drawings and presentations?

[@BoyanBoychev-k5x]

If it goes from glucose and oxygen to carbon dioxide and water, then how does it include water?

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Any videos on metabolism itself?

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it's basically all the chemical processes in your body, especially those that cause food to be used for energy and growth. for example, if you have a faster metabolism, then you'll burn fat quicker.

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3:15 a glitch?

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Where respiration takes place in the cell?

[@Cognitoedu]

Heya - Aerobic respiration takes place in the mitochondria, and anaerobic respiration takes place in the cytoplasm :)

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i learned respiration in 2 min in this vid the in 2 terms in school

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for plants?

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me

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