Thank you so much for your videos, I could never grasp the concept of some topics when I read from textbooks. You help visualise and explain it in simple steps. A life saver.
I'm confused, I thought that the valves and the operculum was the same thing. And that the increase in pressure forces the operculum open which allows the water to then leave the gills.
Your vidoes are just like the best miss They're so good and has cleared almost all my problems i had in biology Please can you make videos on reproduction 🙏🙏
I don't understand why the pressure decreases when the volume increases. (In chemistry if you decrease volume pressure increases as particles colliding will have higher frequency thus more exceeding the activation energy and vice versa) in biology I keep getting confused with the example of when you blow into a balloon (water inside cavity - volume increases) then the pressure should also increase? Just like the pressure in the balloon?
You're spot on with the pressure and volume bit (works the same in both Chem and Bio) in the sense when one increases the other decreases, while keeping in mind that it's a passive process! In breathing, you're changing the thorax volume by contracting/relaxing your intercostal muscles to lift/lower your ribcage, which then changes the pressure, then depending on the direction of the pressure gradient, air would then move in or out of your lungs as a result of it. On the other hand, blowing into a balloon is you forcing air into it, increasing its pressure, in which pushes against the walls, inflating the balloon (increasing its volume). But that's not how we breathe! We don't have air forced into our lungs (unless we have a medical condition where we couldn't breathe naturally by changing our thorax volume), so the balloon example cannot be used to explain how breathing works (unless they're balloons inside the bell jar model...!) Hope this clarifies it! :)
@@BioRach Thank you so much for the clarification! It finally makes sense now, it didn't occur to me that exhaling into the balloon is forcing air into it, despite ourselves expiring hence why they don't both work the same. Keep up the great videos and take care!
You are soo good at explaining these things to me. Actually better than my teachers
this is insanely helpful
Glad you found it helpful! Thanks for watching :D
this is a rly helpful explanation! could you please do a video explaining the counter-current system and the adaptations of fish?
Yes i need this!!!
Thank you so much for your videos, I could never grasp the concept of some topics when I read from textbooks. You help visualise and explain it in simple steps. A life saver.
Thank you for making videos at this time🥰
Glad to be of help! Thanks for watching :)
you are acc a saint ibr, i have my exam next week and this finally helped me understand this after more than a year of not rlly getting it tysm!!!!!
Please keep making videos!!
Amazing! Great explanation - thanks!
Absolute Legend
your videos are really helpful miss,
could you also make videos on 7.2, 7.3 and 7.4 please?
thank you
Eventually will do!
Can you do counter current etc?x
thanks Rachel loved this video!!
great video please please do one for the mammalian gas exchange if possible 🙂🙂 thanks!
Yes that's on the list!
I'm confused, I thought that the valves and the operculum was the same thing. And that the increase in pressure forces the operculum open which allows the water to then leave the gills.
Yeah you're right! Is that not what I said? 😂
Thanks for this!!!
Your vidoes are just like the best miss
They're so good and has cleared almost all my problems i had in biology
Please can you make videos on reproduction 🙏🙏
Thank you very much
When’s the counter current video 😪😪
YOU ROCK THANK YOU
Lifesaver 😅❤
ur a godsend i love u
I don't understand why the pressure decreases when the volume increases. (In chemistry if you decrease volume pressure increases as particles colliding will have higher frequency thus more exceeding the activation energy and vice versa) in biology I keep getting confused with the example of when you blow into a balloon (water inside cavity - volume increases) then the pressure should also increase? Just like the pressure in the balloon?
You're spot on with the pressure and volume bit (works the same in both Chem and Bio) in the sense when one increases the other decreases, while keeping in mind that it's a passive process!
In breathing, you're changing the thorax volume by contracting/relaxing your intercostal muscles to lift/lower your ribcage, which then changes the pressure, then depending on the direction of the pressure gradient, air would then move in or out of your lungs as a result of it.
On the other hand, blowing into a balloon is you forcing air into it, increasing its pressure, in which pushes against the walls, inflating the balloon (increasing its volume). But that's not how we breathe! We don't have air forced into our lungs (unless we have a medical condition where we couldn't breathe naturally by changing our thorax volume), so the balloon example cannot be used to explain how breathing works (unless they're balloons inside the bell jar model...!)
Hope this clarifies it! :)
@@BioRach Thank you so much for the clarification! It finally makes sense now, it didn't occur to me that exhaling into the balloon is forcing air into it, despite ourselves expiring hence why they don't both work the same. Keep up the great videos and take care!
Thanks Queeeeeen.
Great
you beauty !
Lol
fax