Photosynthesis: The Original Solar Power: Crash Course Biology #28

Photosynthesis is a powerful process that is responsible for some of life’s most vital functions. In fact, consumers like us rely on photosynthetic producers to harness energy from the sun so that we can survive and thrive. In this episode of Crash Course Biology, we’ll explore photosynthesis in two acts, and learn how the process works inside and out.

Chapters:
How Can We Feed the World? 00:00
Producers & Photosynthesis 1:26
Chloroplasts 4:04
The Light-Dependent Reactions 5:01
The Calvin Cycle 7:30
Carbon Fixation 10:27
Review & Credits 11:33

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[mrblue]

I think it's pretty important to mention that we do make enough food to feed the planet, but that a lot goes to waste. Might be outside the scope of this series.

[avery]

I’m one of those horticulturists looking to dive deeper into the science to help our future!! Thanks for posting!!

[malkumify]

Ribulose Biphosphate! I remember how this molecule was taking up space in my mind for at least a month both in Biochemistry and in genetics! I loved my biochemistry, genetics, and molecular biology and cell biology classes. Getting down to the literal molecule of how life works.

[bubblegodanimation]

Always a wonderful start to my day when crash course uploads.

[nickh.]

Perfect timing lol. I just had my bio lecture on photosynthesis today.

[ellaser]

Just a reminder that since plants perform both photosynthesis AND cellular respiration, we need them way more than they need us.

[MrDarthwendy]

This video and photosynthesis are awesome.
Thanks

[TheBitPianist]

So in other words, we all run on fusion energy. Cool!

[ShawnRitch]

Well done :) I think the toughest part of biology is going to be keeping the diversity of plant life in / near its region / area . . .

[PANIR]

Interesting to see Bangalore K R market in the intro of the video

[TheBitPianist]

Today I mainly learned that my cactus does not enjoy getting fist bumped

[madcow]

How do you cut open something as small as a chloroplast?

[devan]

One thing that I've reads that has been proposed is fertilizing the oceans. Much of the ocean doesn't support a lot of life, fertilizing it encourages the growth of plankton which can be harvested for food, and which is food for the rest of the food chain.

[theguys]

i tried fist-bumping poison ivy, all did not go according to plan

[KoastLikeWhoa]

You said at 08:15 you said “these three carbon molecules”. Was this supposed to be “carbon atoms”? This may seem obvious to those who know, but to someone that doesn’t know, you said it creates a group of molecules with 3 carbon atoms each. Does this mean 3 Carbon atoms per MOLECULE in said group? But then why refer to it as “three carbon molecules”?

[pvtpaink]

A science show spreading the "Sugar makes kids hyper" MYTH. Cool...

[skybluskyblueify]

2.5 million ants to one human? Cant we just eat ants?/s