GCSE Biology - Gas Exchange and Lungs #26 

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 built specifically to make learning and revision as quick and 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 huge bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom

Good luck for tomorrow everyone! :)

I got sent here by my biology teacher

Post-Video Quiz: 1. What are the trachea, bronchi and bronchioles? (0:40) 2. What are the alveoli and why are they so important? (1:00) 3. Describe the alveolus (1:14) 4. How do alveoli and capillaries pull oxygen into the body and push CO2 out? (1:58) 5. How should breathing rate be calculated? (3:30)

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Why the gasous exchage occure in the surface of alvoli

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THanks

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Up the boro

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got sent here by my bio teacher

I SHOULD HAVE PAYED ATTENTION IN CLASS

Hello substitute biology teacher, I know you’re reading this as you made us watch this video. I’d like to say I don’t understand anything this video says That may be because I was too busy typing the comment for you while I was watching it but yk Thank you for letting me waste your time and force you to read this.