My goodness you are a genius I mean God sent finally finally I get the infamous Electron Transport chain oh and Krebs cycle thank you thank you you're changing students grades
You Have saved my life :D Very helpful videos Sir, thank you for all the time and energy you've out into this! Will you be uploading anymore F215 videos?? :D
The iron (as well as other non-protein bits) are like prosthetic groups. Similar to haem group in haemoglobin. They exist in respiration (oxidative phosphorylation, inner mitochondrial membrane) as well as in photosynthesis (thylakoid membrane).
Fad delivers hydrogen further along the Etc than Nad. So fad contributes less to the proton gradient than nad. Since the proton gradient is what drives atp synthesis, nad results in more atp made than fad.
+Susiksha Basnet ATPase is an enzyme that breaks ATP down, using its energy to drive some other process. ATP synthase is an enzyme that makes ATP from ADP.
Dr Bhavsar Thank you for your reply!! Its Edexcel Biology B textbook. It says 'the only way [hydrogen ions] can move back into the matrix is through special pores. These pores are found on the stalked particles and have an ATPase enzyme associated. As the H+ move along their electrochemical gradient through these pores, their energy is used to drive the synthesis of ATP. ' i was confused with what that meant as it didnt mention ATP synthase?
DR Parag if you will keep posting videos can you start with the lesson of genetic control. Its very hard and i cant understand it because there are still a few bits and pieces that i cant visualise
Ok my videos (being uploaded) will cover mutations and homeobox genes. Next on my list is meiosis. So it will be possibly a week (maybe less) before my video on meiosis.
i saw the video again and i have a question. Why doesnt glycolysis need oxygen and free NAD while we took in school that the products of glycolysis are ATP,Pyruvate,REDUCED NAD. I dont get doesnt it need free NAD too to dispose of its hydrogens . Why wouldnt it be blocked too ?
If Glycolysis stopped at pyruvate you would be right. BUT during anaerobic respiration, extra reactions involving pyruvate conversion to lactic acid or ethanol result in regeneration of Reoxidised NAD. This allows glycolysis to continue but not the other steps as we've lost our pyruvate.
as soon as the electrons they have (brought from krebs cycle) are transferred to the ETC, they are reoxidised and able to return to krebs to pick up electrons again.
I know this is not the correct video to ask this on, but i am really confused about glycoproteins and glycolipids, do you have a video on this or could just quickly explain the difference please?
+Laura Mas as you know the cell membrane is made of phospholipids and has proteins in it too. Some of these phospholipids and proteins that face the outside of the cell have been modified and a carbohydrate has been added to them (a bit like glycogen). This stuff is used to help cells stick together as well as recognise each other.
Laura Mas Glycoproteins and glycolipids have similar functions in the plasma membrane for cell recognition. They both have specific receptor sites so that binding hormones or neurotransmitters can trigger a series of chemical reactions within the cell.
The drawings are crazy impressive!! :O
Best bio teacher ever. Thanks a lot
Slowly making my way through your entire respiration series and you've been the most helpful channel ever!! Thank you X
+Aisha Patel glad the videos are helpful. Thanks for the feedback.
unbelievable , the depth you go into an the way of explaining is honestly so valuable , thankyou so much
I've been struggling with this topic for 2 years. Thanks to your elaborate explanation, I've finally understood it. Thank you so much.
BEST BIO TEACHER EVER :)
You my friend are the reason I thank God for respiration, I hope you have plentiful amount of oxygen to accept electrons so you can keep teaching🤓
LOL and the award for best comment goes to... 😃
You are the best on youtube!! Please do F215!
Thanks! And yes, in production.
This was INCREDIBLY HELPFUL!!!!!
Wish I found your channel earlier in the year! Luckily, F215 is next week so will have more time to use your videos, thank you!!!
+Harrison Nash hopefully it will help. All the best.
My goodness you are a genius I mean God sent finally finally I get the infamous Electron Transport chain oh and Krebs cycle thank you thank you you're changing students grades
thanks for your kind words! and hope your studies are going well.
Your explanation is really good.Thank you so much.
You Have saved my life :D Very helpful videos Sir, thank you for all the time and energy you've out into this! Will you be uploading anymore F215 videos?? :D
*put :)
excellent video, very helpful
You're very welcome, happy to help!
thanks Dr Parag
Dr Parag i hope you are had a great christmas. where are you ?. the last video was 3 weeks ago.
Still here! Just getting back into the swing of things. Videos coming soon. Next up probably lac operon
Your videos are great at explaining biology topics! Please can you do one on the independent assortment of alleles in meiosis it would help alot!!!
Ty for the video 👍👍👍👍
If i ever pass biology
Thanks to u
I'm taking chemistry and A&p next semester I hope you'll still be accepting those oxygens to explain impossible topics
yep, still producing that ATP.. :)
Thanks!
where does the iron ion in the etc come about?is the reduction and reoxidation of fe2+ only in photosynthesis??
The iron (as well as other non-protein bits) are like prosthetic groups. Similar to haem group in haemoglobin. They exist in respiration (oxidative phosphorylation, inner mitochondrial membrane) as well as in photosynthesis (thylakoid membrane).
Why does fad generate less atp than nad?
Fad delivers hydrogen further along the Etc than Nad. So fad contributes less to the proton gradient than nad. Since the proton gradient is what drives atp synthesis, nad results in more atp made than fad.
Im confused 😭 what is the difference between ATPase and ATP synthase?
^^my textbook mentions ATP being made due to ATPase and doesnt mention ATP synthase? Idkk
+Susiksha Basnet ATPase is an enzyme that breaks ATP down, using its energy to drive some other process. ATP synthase is an enzyme that makes ATP from ADP.
+Susiksha Basnet it might be an error in the book or perhaps that's not what they mean to say. Which book?
Dr Bhavsar Thank you for your reply!! Its Edexcel Biology B textbook.
It says 'the only way [hydrogen ions] can move back into the matrix is through special pores. These pores are found on the stalked particles and have an ATPase enzyme associated. As the H+ move along their electrochemical gradient through these pores, their energy is used to drive the synthesis of ATP. ' i was confused with what that meant as it didnt mention ATP synthase?
+Susiksha Basnet thanks for the extra detail. Based on that I'd say it's a mistake.
DR Parag if you will keep posting videos can you start with the lesson of genetic control. Its very hard and i cant understand it because there are still a few bits and pieces that i cant visualise
I've just made a video on that topic. I've not yet posted it but hopefully you find is useful. What is it that is not making sense?
prophase 1 mostly and the crossing over process
Ok my videos (being uploaded) will cover mutations and homeobox genes. Next on my list is meiosis. So it will be possibly a week (maybe less) before my video on meiosis.
i saw the video again and i have a question. Why doesnt glycolysis need oxygen and free NAD while we took in school that the products of glycolysis are ATP,Pyruvate,REDUCED NAD. I dont get doesnt it need free NAD too to dispose of its hydrogens . Why wouldnt it be blocked too ?
If Glycolysis stopped at pyruvate you would be right. BUT during anaerobic respiration, extra reactions involving pyruvate conversion to lactic acid or ethanol result in regeneration of Reoxidised NAD. This allows glycolysis to continue but not the other steps as we've lost our pyruvate.
thanks for responding so soon
how is the nadh and fadh2 reoxidised?
Does it bind to the ETC ???
as soon as the electrons they have (brought from krebs cycle) are transferred to the ETC, they are reoxidised and able to return to krebs to pick up electrons again.
@@LSCBiology thanks v much ;)
Nice drawing
I know this is not the correct video to ask this on, but i am really confused about glycoproteins and glycolipids, do you have a video on this or could just quickly explain the difference please?
+Laura Mas as you know the cell membrane is made of phospholipids and has proteins in it too. Some of these phospholipids and proteins that face the outside of the cell have been modified and a carbohydrate has been added to them (a bit like glycogen). This stuff is used to help cells stick together as well as recognise each other.
Thanks for responding! So what is the difference between glycoproteins and glycolipids, do they both have different functions?
Laura Mas Glycoproteins and glycolipids have similar functions in the plasma membrane for cell recognition. They both have specific receptor sites so that binding hormones or neurotransmitters can trigger a series of chemical reactions within the cell.
My biology teacher told me that the pumping of protons here actually IS a case of active transport... I'm so confused
had a go at answering your question. let me know if it helps: th-cam.com/video/znzWwCBTnUY/w-d-xo.html
Dr Parag i hope you are had a great christmas. where are you ?. the last video was 3 weeks ago.