Hank tells us about the city of Eukaryopolis – the animal cell that is responsible for all the cool things that happen in our bodies.
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More info. on the structures described in this video linked to in the Google Document here:
Table of Contents time codes
1) Robert Hooke 1:59
2) Cilia/Flagella 2:52
3) Cell Membrane 3:32
4) Cytoplasm/Cytoskeleton/Centrosomes 3:58
5) Endoplasmic Reticulum 4:41
6) Ribosomes 5:45
7) Golgi Apparatus 6:00
8) Lysosomes 6:47
9) Nucleus 7:06
10) Mitochondria 9:14
TAGS: crashcourse, biology, animal cells, cell membrane, eukaryote, eukaryotic, organelle, organ, tissue, muscle, nerve, animalia, robert hooke, cilia, flagella, microtubules, cytoplasm, ctyoskeleton, centrosome, nucleus, nucleoplasm, nucleolus, endoplasmic reticulum, ribosome, amino acid, polypeptide, golgi apparatus, golgi, lysosomes, DNA, chromatin, rRNA, mRNA, mitochondria Support CrashCourse on Patreon:
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thank you hank!!
When this is your new bio class in 2020
When your watching this instead of reading your book and you actually pass
How did that original cell you spoke of create ATP before the bacterial mitochondria joined the cell? How did the cell code for creating more of a foreign object?
Love this! Hank makes these subject interesting. Thanks!
2020 and still watching this because my professor can't teach lol…
Thank you for helping me understand this as part of my pharmaceutical science diploma!
How does the nucleus communicate with the rest of the cell?
Class lectures are so long, boring, and useless. Crash course teaches you so fast, that you have to pause in between.
Hank: the Golgi bodies can cut up large proteins into smaller hormones and combine proteins with carbohydrates to make various molecules, for instance snot.
Me: *blowing my nose* Eh WhAt!?
Who’s here because they have a test on it tomorrow?
hello there
My bio teacher said "the powerhouse of the cell" isn't
a good answer for explaining its function xD
it's good to understand that sentence, but
it's better to be more descriptive when writing an
organelles' function.
Notes:
Animal cell
Eukaryotic cells, with membrane ,organelles and nucleus containing DNA that calls the shots
Animal, plants, fungi and protist
Flexible and squishy membranes as oppose to plants, allowing the creation of cell, organs and tissue types
Cell is like a city:
On the surface:
Microtubials: made of long protein fibers: Cillia (tiny arms like in lungs and throat pushing the mucus up) and Flagella (whip-like tail like in sperms), Protozoans, move with Microtubials instead of muscle tissue
Membrane: Selective permeability: monitoring coming in and out like boarders
Inside:
Cytoplasm: water+nutrients
Cytoskeleton: scaffolding made of protein strands, Centrosomes: infrastructures
Endoplasmic Reticulum (ER): network of membranes like a highway system
The smoother parts of ER are like factories:
containing enzymes (proteins) producing lipids,
detoxifying substances by adding carboxyl to make them soluble in water,
storing ions like Sodium used for energy
The rougher parts of ER have Ribosomes attached to them:
Synthesis and packaging of proteins
Ribosomes: float freely, assemble amino acids into Polypeptides pushing the protein chain into ER where it's bitten off and sent to Golgi Aparatus
Golgi Aparatus: made of membranous layers: the post office for packaging proteins, cutting them into hormones, combining them with Carbs to make molecules
Vessicles: the packages with Phospholipid walls
Lysosome: waste treatment and recycling, sacks containing enzymes breaking down cell waste into building material
Mitochondria: the power plant where respiration takes place, fuels converted to Adenosine Triphosphate (ATP) which is the currency
They were separate bacteria that animal cells absorbed and kept, and they still act as their own organisms with their own DNA, they exist in the egg and doesn't mix with sperms DNA during fertilization
Nucleus:
The leader
Contains DNA and has all the information and instructions
Has a double membrane
Nucleoplasm (is like Cytoplasm)
Nucleolus at the center: creates Ribosomal RNA+proteins=Ribosomes
Messenger RNA: carry the orders to Ribosomes
Chromatin: web-like substance that holds DNA molecules, upon cell division they gather into rod-shaped chromosome, humans have 46
cell membrance
endoplasmic reticulum
Nucleus
Chromosomes
Nucleous
Ribosomes
transport vesicle
Lysosomes
Vacuole
Mitochondria
Chloroplast
I’ve got an A-Level mock exam coming up tomorrow so this is saving my life.
Who’s here during the wuhan coronavirus outbreak 💋
what grade are yall watching this in
Mine 7th
What's written on ur hand, Hank?
If i was an instructor, I would play crash course before I lectured to give them a visual. lolol
I love the memes but have always hated "the mitochondria is the powerhouse of the cell" because it never taught me anything. Teachers loved saying it without elaborating why it is a powerhouse, so I never understood its importance until now. Thanks so much!
what is written on his left arm?
"Midi-chlorians are a microscopic organism that resides within all living cells." -Qui-Gon Jinn.
According to George Lucas, midi-chlorians are the same as mitochondria.
That moment when Crash Course explains the plot of Parasite Eve.