How to use a respirometer

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A description of the use of the respirometer to measure oxygen consumption by respiring organisms. The focus is on setting up the experiment rather than on the theory. This is one of the core practical investigations for A level biology. Let me know in the messages if more practical videos such as this one would be useful.

Пікірлер: 21

@diamondb8816 5 жыл бұрын

how do we analyse the results...so measure how much the fluid has moved??

@muhammadahmed6038 5 жыл бұрын

Excellent demonsteration !

@tipstoes917 3 жыл бұрын

What a life saver, thank you👍

@LSCBiology 3 жыл бұрын

Glad it helped!

@muhammadkhoerul7789 2 жыл бұрын

Sir, how to calculation the result? What formulation u use to calculation the result? 🙏🏻 thanks

@arham20 3 жыл бұрын

Great👍

@taki007r7 2 жыл бұрын

How are you Dr Bhavsar! Long time no see!

@ashiqueismail4925 Жыл бұрын

How can i clean the manometer after the experiment

@Crackheads305 3 жыл бұрын

When doing experiment for anaerobic respiration should we use soda lime since it absorbs co2 and will prevent pressure from increasing

@LSCBiology 3 жыл бұрын

you'd need to start with (somehow) conditions with no oxygen in the tube. but you'd do the experiment without the soda lime, and so measure the volume of CO2 given off, ie how much the fluid in the tube moves AWAY from the respiring organisms.

@faizunnesa2311 3 жыл бұрын

Thank you.

@futurefee1444 4 жыл бұрын

Where's the results table?

@biancablake939 3 жыл бұрын

1) What would happen if you had a tube with only soda lime and no organism? 2) A tube with living organism but no soda lime?

@LSCBiology 3 жыл бұрын

1. nothing: there's no organisms respiring and so don't affect the gas composition in the tube. 2. nothing: respiring organisms absorbs as much oxygen as they evolve CO2 (and no soda lime to absorb the co2) but this is all about the relative difference created between TWO tubes in parallel. so the question of one tube is kind of moot. it's always in comparison to whatever's going on in the other tube as well: that's what affects the movement of the liquid in the u-tube.. hope that helped.