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 the 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 a 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.

Like CrashCourse @ http://www.facebook.com/YouTubeCrashCourse
Follow CrashCourse @ http://www.twitter.com/TheCrashCourse

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
http://www.uic.edu/classes/bios/bios100/lecturesf04am/lect17.htm
http://www.deseretnews.com/article/700071982/Central-Utahs-Pando-worlds-largest-living-thing-is-threatened-scientists-say.html?pg=all
http://www.popsci.com/science/article/2012-02/200000-year-old-patch-seagrass-worlds-oldest-living-organism

crashcourse, biology, vascular plant, plant, successful, diversity, diverse, conductive tissue, evolution, growth, largest, most massive, oldest, dermal tissue, vascular tissue, ground tissue, photosynthesis, sprout, germination, primary growth, herbaceous, secondary growth, woody tissue, organ, root, stem, meristem, leaf, epidermis, cuticle, trichomes, root hairs, parenchyma, cortex, xylem, evapotranspiration, collenchyma, sclerenchyma, lignin, mesophyll, chloroplasts, stomata, phloem, sieve cells, sieve-tube elements, internal pressure, diffusion

Advertisements

About The Objective Review - Journalist Joseph Kirk
"so it is to the printing press--to the recorder of man's deeds, the keeper of his conscience, the courier of his news--that we look for strength and assistance, confident that with your help man will be what he was born to be: free and independent." ~John F. Kennedy Contributing to the people with passion and diligence through vigorous and tedious research to get the facts out for review. Political Correspondent for: General News Agency United Press Association News Examiner Demonstrating much prowess for informing the inquiring mind throughout the Republic of the United States of America. an accredited member of the General News Agency, United States Press Agency, United Press Association, US Press Association, The Examiner and The Objective Review. You can be confident that you have been objectively and fully informed. Correspondent Joseph Kirk: theobjectivereview@gmail.com

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: