Vascular Plants = Winning! - Crash Course Biology #37

Hank introduces us to one of the most diverse and important families in the tree of life - the vascular plants. These plants have found tremendous success and their secret is also their defining trait: conductive tissues that can take food and water from one part of a plant to another part. Though it sounds simple, the ability to move nutrients and water from one part of an organism to another was an evolutionary breakthrough for vascular plants, allowing them to grow exponentially larger, store food for lean times, and develop features that allowed them to spread farther and faster. Plants dominated the earth long before animals even showed up, and even today hold the world records for the largest, most massive, and oldest organisms on the planet.

Table of Contents
1) 3 Tissue Types 02:37
2) Primary Growth 03:04
3) Secondary Growth 03:28
4) Dermal Tissue 04:47
a) Epidermis 04:54
5) Parenchyma Cells 05:39
6) Vascular Tissue 05:58
7) Xylem 05:58
8) Collenchyma 07:10
9) Sclerenchyma 07:35
10) Ground Tissue 08:25
a) Mesophyll 08:17
b) Photosynthesis 08:47
11) Phloem 09:54

References

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[gingerr]

Xylem=water
Phloem=food (sugar)

*XY*lem=*W*ater
*PH*loem=*F*ood

You can remember which ones match up because XY and W are near the end of the alphabet. Also PH and F make the same noise.

[TheBigDstudios]

Hank: And the oldest living thing-
Me: The fish?
Hank: A patch of sea grass.

[FueledByDopamine]

As a teacher, I gotta say I highly recommend this videos! They're very illustrative and clear for pupils, plus the engagement they generate :D

[jaychasteen]

I love how the bass in the seagrass photo is like "yeah I photo bombed whatcha gonna do about it?"

[SpencyGG]

The 45 dislikes are from the nonvascular plants.

[Xgvad]

Unlike xylem (which is composed primarily of dead cells), the phloem is composed of still-living cells that transport sap. The sap is a water-based solution, but rich in sugars made by photosynthesis. These sugars are transported to non-photosynthetic parts of the plant, such as the roots, or into storage structures, such as tubers or bulbs

[hannnnnnaahhhhh]

As a horticulture major, it makes me happy when videos like this make it easy to learn about plants and how they work :)

[pjtice]

My teacher made a quiz on your video. Be proud.

[kirstencalder]

My exams ended today. I'm just here to be entertained by the pure cleverness of this video 👌

[serene]

_Stop scrolling and concentrate on what Hank's sayin'!!_

[darkstar]

Corona got me wishing I was outside with him, instead I'm inside listening to him for a project...

[rileighfoley-watson]

these videos are the reason I'm passing my biology class

[sibtiali]

Why isn't biology fun like this anywhere else?

[janellemargallo]

Can I PLEASE borrow your brain just for two hours tomorrow? :'( HUHUHUHU

[imadgibbs]

6:34 - 7:10 - One of the most interesting & revealing things I've ever heard on Crash Course Biology. Awesome, thank you

[aidenbrealey]

Crash course is my life line through A level Biology 😂

[atinofmilo]

Actually love how you talk fast btw, cause aint nobody have time for a droning voice.

[sladewilsonperrotti]

Cant thank you enough Hank! You actually make studying for Bio not only interesting but actually entertaining. That's a scientific breakthrough man!

[erindoan]

Thank you for making this video so engaging. I find biology to be interesting, but I dislike having to do all the paper work and having to study hard to understand it. Your videos make what I'm learning feel simple. :)

[atosdejusticaful]

Wow these videos are incredible! They are being so much help. After studying a couple of hours it's so good to watch your videos and review concepts I might have not understood. Thank you thank you thank you! Please keep making these videos...