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Photosynthesis and Cellular Respiration: Crash Course Botany #5
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- Опубліковано 6 сер 2024
- Plants and trees may seem pretty passive, but behind the scenes, their cells are working hard to put on a magic show. In this episode of Crash Course Botany, we’ll explore how the processes of photosynthesis and cellular respiration work, why they’re so critical for all life on Earth, and how they’re helping us to forge a greener path to the future.
Chapters:
Plants' Magic Show 00:00
Photosynthesis 1:27
The Light-Dependent Reactions 3:02
The Light-Independent Reactions 4:18
Cellular Respiration 5:32
Biofuels 8:50
Review & Credits 11:43
Special thanks to Hannah Bodenhausen for additional post-production support on this episode!
Sources: docs.google.com/document/d/1P...
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The answer to the extra credit question is… bacteria! What’s another fact that makes you realize the smallness of humans?
That fungi are still higher on the earth biomass scale that animals!
Protozoa can also use photosynthesis
The fact that we are made up of atoms from several suns which could have been so big they would have reached Jupiter if swapped for our sun
Also giant red wood trees.
THOUGHT CAFE MADE THE LIL MITOCHONDRIA SO CUTE 😭
Eyyyy 🤩 Thank you Miss Alexis for making every lecture entertaining and memorable, I really enjoyed this series 💯😊
Omg! Alexis!! Thank you so much for all the educating you do here on Crash Course as well as on your other platforms. You're a treasure!
Thought cafe makes EVERYTHING adorable
I’m currently at university majoring in plant science. I wish all my lectures were like this! So engaging and love the graphics.
As a Trigun fan, I can assure you that you are DEFINITELY NOT the only person plotting elaborate plant fanfiction.
One of the better explanations I've heard for this one, well done! I suppose some folks might feel they've heard this story before, but still it's WELL stated, and that counts for a lot!
That cape is very stylish, by the way, hehe!
I had three uni courses on plants but i still see this with graphs and i am WOW ALL OVER AGAIN
Thank you, I always use your videos to prepare lessons for the botanical garden ❤
You're the brightest person out there ☀️🪴🌿🌵🌱🌷
I love listen to their biology videos when cleaning as a brush up
This is my favorite episode. Thank you so much for lowering her voice a lil. It made it easier for me to watch/listen & I really appreciate that 😊
The cell animations are adorable 🥺
such an amazing and informative video!! i love plants and learning everything about them :))
Thank you so so much for this series!! You are an amazing host girl!
Biofuels and related are fascinating. Thank you!
This is great for helping a Social Sciences guy like me understand these concepts for my classes in harder sciences. Thank You!
Loving this series!!
You are fantastic!! Thank you for your enthusiasm!!!
Love this. Love the magician references.
Loving this show
Great video. Thank you 😊
Loved it. 👏
Don’t think you are the only one who writes elaborate botany fan fictions, I do too.
I’ve made an entire world known as snorin, when plants are purple instead of green.
There are a lot more similarities between snorin and Mars than snorin in earth, but it’s still very wet there.
Thank you!
Wish I had this in grade 10! Great video :)
At 8:27, you label the processes "anaerobic respiration", while the diagram calls them fermentation. The diagram is right! Anaerobic respiration is very different & requires the electron transport chain. Fermentation starts with sugars like glucose and is definitely what plants do!
Either algae or fungi make up the next largest group. Great video, informative as always. Keep up the great work, you are amazing Alexis!!!!
Actually our host answers this question in her comment above -- it's bacteria! But I thought fungi at first too!
❤ Wow this is an amazing video love to the editing cause you can’t do magic
OMG Dr. Gadhamshetty was one of my advisors!!!!! Hi Dr G!
6:22 I beleive the term for this is "autotroph" 😁
This host was amazing, made the video 💯
Love this episode! And is it just me or does that oak tree at the end look a lot like a maple tree
Crash course should do an episode about invasive honey bees in north america and their devastating effects on the native pollinators!! ❤
Fungi are probably the next in the big percentage of biomass
Can't wait for "50 shades of Green" to drop.
Flashy way of learning!
My guess for the second largest contributor to earth’s biomass: funghi/myocell.
I believe that bacteria are next after plants in terms of percentage of biomass on Earth.
Do plants have unequal rates of photosynthesis and cellular respiration?
Wowza early bird
Second largest Biomass - Insects
oh yeah, I was going for ants, but that's more accurate.
Will you talk about mushrooms?
Bacteria is second for sure. There are just SO many bacteria, but they’re on average much smaller than plants.
ALEXIS!!! 😍
11:19 Problem with the "magic" of biofuels is that mass-producing them is heavily dependent on fossil fuels. So we are still, though indirectly, burning fossil fuels and increasing CO2 levels…
Another - possibly bigger - problem is that they tend to get grown on the world´s limited farmland. Which we kind of already need to feed billions of people so it´s going to be hard to also use it to grow a significant part of our fuel. (Unless it comes from waste products but the kind of stuff you use to produce fuel is also the kind of stuff you don´t throw away in bulk.)
There's a lot of research being done in using solid waste (which has downstream versions of plant fuel) as a biofuel source material. Also, industrial byproducts of plant material like sugarcane fiber and wood pulp are examples of ways to take waste product on existing farmed land (or working forest land) and turning it into a biofuel input.
As for the combustible, that is a more complicated problem but not an unsolvable one I think!
I just love the narrator @theblackforager! This is amazing!!!
oh, to be a plant
THE MITOCHONDRIA IS THE POWERHOUSE OF THE CELL
Did i iust find black forager on PBS?!?!?
👍
the source is a Google doc created... by you?
Plants must produce less CO2 than oxygen or they wouldn't be considered a carbon sink. Does anyone know what's a typical ratio of CO2:oxygen outputted?
I was just thinking leaves are like the solar panels of plants.
Nematodes?
Second largest group by mass is bacteria, third is fungi.
I'd say, ants! They're everywhere!
Bugs. Ants specifically
I still want to see the plant rebellion. The day when all plants will rebel against human domination.
are all crash course video is full course knowledge
black forager the same as crash course
Why does it matter how long the carbon has been locked in the earth? In terms of saying that biofuels are more climate friendly than fossil
Biomass q bacteria made up about 15-20% of the total biomass on Earth
Insects?
Bacteria followed by Archea
Prolly.... uh worms(like all forms, since even they're barely closely related to each other
But apparently it's ants and termites
First
Insects
I don’t know what brought me here
It's not really magical but more like miraculous.
Ill break it down for you bit…. by bit
I’m pretty sure the answer to today’s Q is ants.
Somehow using edible plants like tomatoes, soy and corn to produce energy instead of food sounds like the priorities aren't right...