Glycolysis Steps 1-5 Cellular Respiration Investment Phase

Leah4sci.com/glycolysis presents: Glycolysis Steps 1-5, the Investment Phase of Cellular Respiration
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This video focuses on the first half of the glycolysis pathway, in which energy is invested to trap a molecule of glucose in the cell and eventually break it into two molecules of glyceraldehyde-3-phosphate. You’ll learn how the glucose is phosphorylated, isomerized, and ultimately lysed into two 3-carbon sugars on the way to becoming pyruvate in the second half of the pathway.
Links and Resources
leah4sci.com/fischer Fischer Projections Tutorial Video Series
leah4sci.com/enolate
This is Video #1 in the Glycolysis Series. Catch the entire MCAT Glycolysis Video Series Along with the Series Cheat Sheet on my website at leah4sci.com/glycolysis
In This Video:
[0:25]Breakdown of Glycolysis
[1:41] Explanation for Step 1
[4:27] Description of Step 2
[7:35] Review of Rate Limiting Step 3
[9:56] Description of Step 4
[12:08] Review of aldol Reaction
[13:05] Explanation of Step 5
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[@paulineandbecca]

Leah, you don't know how happy am I to find your MCAT channel! I owe my As in organic chemistry to you! I'm taking biochem now and all of your amino acid videos and glycolysis videos are so helpful! I wish I could find one of your videos for every topic I'm learning. You make everything so easy to understand

[@Leah4sciMCAT]

Aww, thanks so much for your kind words! I'm so happy to hear that my resources have helped you so much.

[@NoellaMachiri]

Yes Leah! This is really really clear and understandable. Thank you

[@Leah4sciMCAT]

You're so welcome!

[@miguelitotoral8509]

This is really helpful. You don't have to pause every time to inderstand, because your explanation is very clear and simple to understand. God bless you and your channel!

[@Leah4sciMCAT]

You're very welcome, so glad I helped you understand!

[@lancevercitti3904]

You deserve much more credit and recognition.!

[@Leah4sciMCAT]

Thank you so much!

[@04shakhawathossain75]

OMG,this video gave me much enough information, i learned from 4 consecutive lectures from my class

[@Leah4sciMCAT]

Glad it was helpful!

[@elafalasadi7308]

Thank you so much!!

[@Leah4sciMCAT]

You're very welcome Elaf

[@Ombrenoirs]

Awesome!

[@Leah4sciMCAT]

Thanks!

[@dr.julia-heyakarcic8862]

Brilliant explanation

[@Leah4sciMCAT]

Thank you so much!

[@nijodido7483]

please complete the metabolism you are the best

[@Leah4sciMCAT]

Aww, thanks for your kind words. The second half of the glycolysis pathway (payout phase) can be found here, along with with my glycolysis cheat sheet: leah4sci.com/glycolysis

[@demhagul]

Thank you this video helped out so much. Quick question - it looks like you drew glucose with the OH's in axial positions. Shouldn't they be pointed at an angle instead of straight up/down?

[@Leah4sciMCAT]

You're very welcome! In this video, glucose is depicted as a Haworth projection. This depiction is not meant to convey the ring conformation of the molecule. If we were to draw glucose as a chair conformation, it would show substituents in axial/equatorial positions, but in a Haworth projection, substituents are viewed as being above or below the ring structure.

[@anndang1759]

Is there a second video for the pay off phase?

[@Leah4sciMCAT]

Yes. Working on final edits and hope to publish it next week

[@Timbo9166]

You must of got a perfect score on your science section of the MCAT. Your explanation is fantastic! I appreciate all the details.

[@Leah4sciMCAT]

Glad it was helpful, and to hear about my MCAT story, read this: leah4sci.com/banned-from-taking-the-mcat/

[@delaney1463]

You save me!! Thank you
(I am more than appreciative for this, but can we look forward to a CAC video too?) The specific regulation (activators and inhibitors discussed in Khan Academy's vid) of CAC are a bit confusing

[@Leah4sciMCAT]

You're very welcome. I hope to cover CAC later on, but I'm talking months rather than weeks. Sorry

[@naluchamakwele-ho7ke]

😮😮😮

[@Leah4sciMCAT]

??

[@nijodido7483]

pleaaaaaaaaaaaaaaaaaaaaaaase

[@Leah4sciMCAT]

Please what?

[@nijodido7483]

@@Leah4sciMCAT complete with us metabolism

[@nirupamasharma9710]

Unremarkable

[@Leah4sciMCAT]

Thanks?