We are all very lucky to be here on EARTH We are all very lucky to be here on EARTHour HYDROSPHERE We are all very lucky to be here on EARTHour HYDROSPHERE Water never enters or leaves our ID: 551969
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Slide1
How is our body like a planet?Slide2
We are all
very lucky
to be here on EARTH!Slide3
We are all very lucky to be here on EARTH—our HYDROSPHERE!Slide4
We are all very lucky to be here on EARTH—our HYDROSPHERE!
Water never enters or leaves our
hydrosphere…it just changes statesSlide5
Anyways…Slide6
Our Earth supports billions of
us humans…Slide7
…and countless other
life forms!Slide8
So, how is OUR BODY like the planet EARTH?Slide9
What’s the smallest structure of life on Earth?Slide10
CELLS!Slide11
How many cells does a human body have?Slide12
It’s tricky…Slide13
So if you
estimate by
volume or weight, you get drastically different numbers. Making matters worse, our bodies are not packed with cells in a uniform way, like a jar full of jellybeans. Cells come in different sizes, and they grow in different densities. Look at a beaker of blood, for example, and you’ll find that the red blood cells are packed tight. If you used their density to estimate the cells in a human body, you’d come to a staggering 724 trillion cells. Skin cells, on the other hand, are so sparse that they’d give you a paltry estimate of 35 billion
cells.Slide14
Our body consist of an average 37.2 TRILLION CELLS… 37,200,000,000,000 cells!
What’s these numbers in scientific notation?Slide15
Our body consist of an average 37.2 TRILLION CELLS… 37,200,000,000,000 cells!
3.72
x
10
13
CELLS in YOU!Slide16
HOW DID SCIENTISTS FIGURE THIS OUT?
How did these researchers come up with 37.2 trillion? They actually broke down the number of cells by organs and cell types, going through the literature available to come up with a detailed list of volumes and densities in everything from intestines to knees. So, for example, there are 50 billion fat cells in the average body, and 2 billion heart muscle cells. Adding all those up, they got 37.2
trillion.Slide17
BUT THAT’S NOTHING…Slide18
In your body, BACTERIA ALONE OUTNUMBER your CELLS 10:1!Slide19
In your body, BACTERIA ALONE OUTNUMBER your CELLS 10:1!
That’s 400 TRILLION bacteria in your body RIGHT NOW!Slide20
In your body, BACTERIA ALONE OUTNUMBER your CELLS 10:1!
That’s 4 x 10
14
bacteria in your body RIGHT NOW!Slide21
Source:http://www.scientificamerican.com/article/ultimate-social-network-bacteria-protects-health
/
Thankfully most aren’t harmful!http://www.ppdictionary.com/gnbac.htm
http://www.tandfonline.com/doi/abs/10.3109/03014460.2013.807878Slide22
OH.MY. GAWD!!! What am I to do???Slide23
NEVER FEAR….Slide24
MANY BACTERIA in our bodies
PROTECT US!
Researchers
who study the friendly bacteria that live inside all of us are starting to sort out who is in charge—microbes or people?
By
Jennifer Ackerman
Biologists
once thought that human beings were physiological islands, entirely capable of regulating their own internal workings. Our bodies made all the enzymes needed for breaking down food and using its nutrients to power and repair our tissues and organs. Signals from our own tissues dictated body states such as hunger or satiety. The specialized cells of our immune system taught themselves how to recognize and attack dangerous microbes—pathogens—while at the same time sparing our own tissues.
Over the past 10 years or so, however, researchers have demonstrated that the human body is not such a neatly self-sufficient island after all. It is more like a complex ecosystem—a social network—containing trillions of bacteria and other microorganisms that inhabit our skin, genital areas, mouth and especially intestines. In fact, most of the cells in the human body are not human at all. Bacterial cells in the human body outnumber human cells 10 to one. Moreover, this mixed community of microbial cells and the genes they contain, collectively known as the microbiome, does
not threaten us but offers vital help with basic
body
processes—from digestion to growth to self-defense
.Slide25
MANY BACTERIA in our bodies PROTECT
our HEALTH!
Researchers
who study the friendly bacteria that live inside all of us are starting to sort out who is in charge—microbes or people?
By
Jennifer Ackerman
Biologists
once thought that human beings were physiological islands, entirely capable of regulating their own internal workings. Our bodies made all the enzymes needed for breaking down food and using its nutrients to power and repair our tissues and organs. Signals from our own tissues dictated body states such as hunger or satiety. The specialized cells of our immune system taught themselves how to recognize and attack dangerous microbes—pathogens—while at the same time sparing our own tissues.
Over the past 10 years or so, however, researchers have demonstrated that the human body is not such a neatly self-sufficient island after all. It is more like a complex ecosystem—a social network—containing trillions of bacteria and other microorganisms that inhabit our skin, genital areas, mouth and especially intestines. In fact, most of the cells in the human body are not human at all. Bacterial cells in the human body outnumber human cells 10 to one. Moreover, this mixed community of microbial cells and the genes they contain, collectively known as the microbiome, does
not threaten us but offers vital help with basic
body
processes—from digestion to growth to self-defense
.Slide26
This image shows the “CITIES” where bacteria live inside & outside our bodies.Slide27
YOUR BODY IS A PLANET!Slide28
What do we call our body’s tiny inhabitants?
BACTERIA are just one group of organisms living on our body!Slide29
MICRO-ORGANISMS = MICROBESSlide30
MICRO-ORGANISMS = MICROBES
BACTERIA
Slide31
MICRO-ORGANISMS = MICROBES
BACTERIA
VIRUSES
Slide32
MICRO-ORGANISMS = MICROBES
BACTERIA
VIRUSES
PROTOZOA (
protists
)
Slide33
MICRO-ORGANISMS = MICROBES
BACTERIA
VIRUSES
PROTOZOA (
protists
)
some
FUNGI
some
PARASITESSlide34Slide35Slide36
This image again shows the “CITIES” where BACTERIA live inside & outside our bodies.Slide37
This image shows the “CITIES” where bacteria live inside & outside our bodies.
How do these micro-organisms work together???Slide38
How do these micro-organisms protect us???
THEY CAN COMMUNICATE WITH EACH OTHER!!!!
Bonnie Basslerhttps://www.youtube.com/watch?v=HxZ1KlmuEtM
Groups of 2-3 do “Your body is a planet” worksheet.Slide39
end day 1Slide40
MICRO-ORGANISMS = MICROBES
BACTERIA
VIRUSES
PROTOZOA (
protists
)
some
FUNGI
some
PARASITESSlide41
…and they all live on or in your body planet!
https://
www.youtube.com/watch?v=1X8p0vhsWRESlide42
And just like on our planet Earth, some are good actors, some are bad actors…Slide43
And just like on our planet Earth, some are good actors, some are bad actors, some are UGLY!Slide44
So, of course, not all microbes are harmless nor helpful to us!Slide45
Any DISEASE-CAUSING microbes/micro-organisms have a special name:Slide46
Any
DISEASE-CAUSING microbes
/micro-organisms have a special name:
PATHOGENS or CONTAGIONS!Slide47
Any
DISEASE-CAUSING microbes
/micro-organisms have a special name:
PATHOGENS or CONTAGIONS
aka GERMS!
BAD
VIRUSES
BAD
BACTERIASlide48
Any
DISEASE-CAUSING microbes
/micro-organisms have a special name:
PATHOGENS or CONTAGIONS
aka GERMS!
BAD
VIRUSES
BAD
BACTERIA
BAD
FUNGI
BAD
PROTISTSSlide49
WEB QUEST: Your body is a planet.