Cellular Respiration: What Food is For

We eat. But how is that food used by our cells for work? Well, it's quite an involved process, involving glycolysis, the Citric Acid Cycle and the Electron Transport Chain. This video provides some background and an overview of all of these processes. It can be a scary topic, but take a deep breath and find out where that oxygen goes! WARNING: contains protist and prokaryotic sexual references.

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VIDEO DETAILS

Cellular Respiration: What Food is For

General equation for cellular respiration:C6H12O6 + 6O2 --- 6CO2 + 6H2O

Show me the MONEY
Show me the GLUCOSE
Where We Spend Our Glucose:
70%: basal life processes
20%: physical activity
10%: digestion of food (postprandial thermogenesis)

Financial Analogy
Conversion Efficiency

Energy Conversions Produce HEAT

Antoine Lavoisier
Named oxygen (1778) and hydrogen (1783) and predicted silicon
Helped construct the metric system
Made the first extensive list of elements
Reformed chemical nomenclature
Discovered that mass remains constant even though the states of matter may change
"The Father of Modern Chemistry"

Cellular Respiration: The BIG PICTURE
Glycolysis
Mitochondria
Grooming of Pyruvate
The Citric Acid Cycle / Tricarboxylic Acid Cycle (TCA)
The Electron Transport Chain
ATP Synthase
Chemiosmosis

Analogy of ETC and ATP synthase with hydroelectric power plant

Efficiency of Aerobic Respiration
Efficiency of Anaerobic Respiration

Evolutionary importance

[soccerismylife]

I used this in high school during AP bio & got the highest score on my cell resp test out of the whole class. Now I'm using it to help me study for the mcat. amazing video!

[donaldwinding]

At 72, retired nurse, I have found these videos most enjoyable and a great way to refresh myself and keep my mind active. Wish these were around when I went to school in the Stone Age.

[thefloweredwar]

These videos are a REVOLUTION in learning science.  The audio + visual aids make one 15 minute video more effective than hours of reading a textbook!!!  Many thanks!!

[breannamclaughlin]

you literally save my life every time im preparing for a test. you're amazing

[Penguinprof]

The energy is stored in bonds between the atoms of molecules; breaking those bonds releases the energy, just as building the bonds requires energy. We break bonds from food molecules and store the energy in ATP molecules, which cells use to do work. Hope that helps!

[Penguinprof]

I am sorry - I cannot provide ppt files due to tmy agreement with publishers for using some of their images (I am allowed to use them in videos but not to publish them in a downloadable format). Sorry I cannot accommodate your request.

[MrCsoparaocha]

I'm really appreciating your specific delivery to summary method. I truly want to understand it this well.

[MrKalerender]

I found the first 6'ish minutes of this excellent for my year 8's. Great video for helping them understand cellular respiration.

The rest I'll save for my seniors.

[TheBroverlord]

I've never studied biology or chemistry before, but these videos are so fun to watch! Thanks for taking the time to make these :)

[hassanpalomo]

thank you. I'll be watching these video next semester too because I found these too late. but you explained 3 hours of class in. 15 min.

[tomduke]

a professional and fabulous enunciation... I mean while the other youtubers sound like a nine-years old rendering uncertainty in their talking, yours is just epic... and educated

[martinfarfsing]

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[christianw]

excellent video, actually boosted my confidence in learning about cellular respiration. I felt completely overwhelmed till I had viewed this video. Much appreciated!!!!

[joshuawilson]

i love your "back in the day" ref to the creation of life

[Nathleep]

I knew I would subscribe to this channel right after the introduction. I mean Bio is painful so why not make it un-complicated. My prof said, "for the next class, I will not conduct a regular lecture, so watch this video". Okkkkaaayyy was my reaction, but now I got she was humble enough to realize, "well I cannot do better than this" and my prof is so lady you are like super OMG you made this in 2013, where was I????

[cappuccettorosso]

this video is so good and well done. i am a student from Italy willing to study Medicine in English, and i found this video (as well as many other videos) very useful! thanks from Italy

[EntropyVX]

Wow, what crazy super smart scientists figured this stuff out!

[friendofcanisgirl]

So helpful!  Your enthusiasm is very encouraging :)  I can hear you smiling as you're talking!

[timmiltz]

I do recall playing Hot Potato as a child in the 1970's ONCE at a birthday party, but I had no idea it was a formal game by Remco

[blindedsplurr]

this is the coolest cellular respiration on the planet