Wednesday, March 11, 2015

What good is it?

Why are bacteria so important to the human digestive system? What do they do? 
Please cite your source? 

55 comments:

yvette C said...

beacsue it helps you digest.

Olivia M said...

Bacteria live in our irrigation, our food, and our bodies. Much what we know about bacteria was learned by scientists fight bacterial diseases. But of the thousands of types of bacteria only a minority cause diseases. Many bacteria do things that are important and even helpful to us.

https://knoji.com/why-bacteria-plays-an-important-roles-in-our-world-or-lives/

Matthew b said...

These days we are constantly bombarded by commercial messages urging us to fight germs and rid ourselves of bacteria. But in the right places and amounts, bacteria are actually very valuable to our health and wellness. Under normal circumstances, friendly bacteria found in our digestive system live with us in symbiotic harmony, but factors such as poor diet and medications such as birth control pills, antibiotics and corticosteroids, can upset this balance and lead to a host of difficulties. We now know these live microorganisms are cancer-protective, immune-enhancing, and anti-inflammatory. Here are six great reasons to take them daily.
http://www.huffingtonpost.ca/natasha-turner-nd/good-bacteria_b_3573222.html

Braedon M said...

Most bacteria is in the small and large intestines the bacteria protects the organs from harmful bacteria

Anonymous said...

On and inside the human body, bacteria offer still other benefits. In the digestive system , they help us break down food, like plant fibers, that we're not so good a handling ourselves.

"We get more nutrition out of our food because of bacteria," Maczulak said.

Bacteria in the digestive system also supply us with needed vitamins like biotin and vitamin K, and are our primary source for some of these nutrients, according to Maczulak. Experiments done on guinea pigs have shown that animals raised in a sterile environment without any bacteria are malnourished and die young.

Outside the body, the forest of bacteria on the skin (almost 200 separate species on a normal person, according to researchers at New York University) dominates the environment of the skin and its resources, keeping other bacteria from being able to establish a foothold, according to Maczulak.

And in or out, exposure to bacteria has been shown to be an important part of the development of our immune systems . Exposure to bacteria, both benign and harmful, is what primes the immune system to respond to pathogenic invaders later in life, according to Gerald Callahan, a microbiologist at Colorado State University. Research published in the New England Journal of Medicine has also shown that children who are sheltered from bacteria have a higher chance of developing asthma and allergies.

This is not to say beneficial bacteria can't also be dangerous. Usually, helpful bacteria and harmful bacteria are mutually exclusive, Maczulak said. But there is overlap, notably in the bacteria that inhabit the body.

"Staph bacteria is a good example because it's all over our skin," Maczulak said. A colony of Staphylococcus aureus living on the arm might be plugging along, crowding out intruders without harming the body, but if you get a cut or your immune system is compromised , those bacteria can run amok causing an infection.

The number of bacterial cells in the body is commonly estimated at 10 times the number of human cells.

"That's caused a lot of scientists to describe us as more bacteria than human," Maczulak said. It's a little creepy, "but it helps you visualize how large a role these organisms play."

http://www.livescience.com/32761-good-bacteria-boost-immune-system.html


Maddi T. said...

Bacteria is important to the digestive system because they coat the blood stream as a physical barrier to protect all of the blood that runs through us.

http://www.nourishingdays.com/2010/04/digestion-and-elimination-understanding-the-importance-of-gut-flora/

camden taylor said...

These days we are constantly bombarded by commercial messages urging us to fight germs and rid ourselves of bacteria. But in the right places and amounts, bacteria are actually very valuable to our health and wellness. Under normal circumstances, friendly bacteria found in our digestive system live with us in symbiotic harmony, but factors such as poor diet and medications such as birth control pills.

http://www.huffingtonpost.ca/natasha-turner-nd/good-bacteria_b_3573222.html

Anonymous said...

The bacteria helps us to digest our food in our digestive system. The bacteria also protects your organs from disease.

Dillon said...

Lifeslittle
bacteria-100506-02
Pin It A microscopic view of bacteria
View full size image
The idea that trillions of bacteria are swarming over your skin and through your body is enough to give anyone the creepy crawlies.

But as long as humans can't live without carbon, nitrogen, protection from disease and the ability to fully digest their food, they can't live without bacteria, said Anne Maczulak, a microbiologist and author of the book "Allies and Enemies: How the World Depends on Bacteria" (FT Press, 2010).
On and inside the human body, bacteria offer still other benefits. In the digestive system , they help us break down food, like plant fibers, that we're not so good a handling ourselves.
http://www.livescience.com/32761-good-bacteria-boost-immune-system.html

hayden wilkins said...

only a little bit of the thousands of bacteria can cause a disease

Alexis B said...

Bacteria in the GI tract, also called gut flora or microbiome, help with digestion. Parts of the nervous and circulatory systems also play roles in the digestive process

Nick C said...
This comment has been removed by a blog administrator.
Anonymous said...

In turn, bacteria make vitamins you need—vitamin K and two

B vitamins. Vitamin K is needed for blood clotting.

dominic l said...

The idea that trillions of bacteria are swarming over your skin and through your body is enough to give anyone the creepy crawlies.

Jade S said...

Bacteria can break up food for you that you can not digest so that is how the bacteria can help you.

owenmerola said...

Bacteria in the GI tract, also called gut flora or microbiome, help with digestion. Parts of the nervous and circulatory systems also play roles in the digestive processv

Anonymous said...

Bacteria live in our irrigation, our food, and our bodies. Much what we know about bacteria was learned by scientists fight bacterial diseases.

Allexius t said...

Its the gut it and helps with digestion.

Chloe O. said...

Bacteria is important to the digestive system because they coat the blood stream as a physical barrier to protect all of the blood that runs through us.

http://www.nourishingdays.com/2010/04/digestion-and-elimination-understanding-the-importance-of-gut-flora/

Anonymous said...

Bacteria helps the human body by keeping it holding in place.

Tim D said...

Friendly bacteria in the digestive system occur mainly in the colon, also called the large intestine, and in the part of the small intestine furthest away from the stomach. The oesophagus, stomach and first section of the small intestine are mostly bacteria-free because of the deterrent effect of the strong stomach acid and the high level of digestive enzymes.http://www.typesofbacteria.co.uk/friendly-bacteria-digestive-system.html

Jakob P said...

It helps by breaking down the food in your stomach

Wayne Twombly said...

But as long as humans can't live without carbon, nitrogen, protection from disease and the ability to fully digest their food, they can't live without bacteria, said Anne Maczulak, a microbiologist and author of the book "Allies and Enemies: How the World Depends on Bacteria"


http://www.livescience.com/32761-good-bacteria-boost-immune-system.html

darren said...

Bacteria helps the human body system by keeping it together and its important to the digestive system because they coat the blood stream as a physical barrier to protect all of the blood that runs though us.

Josh Y said...

Bacteria is important to you digestive system because it breaks dow the food.

Chris Payeur said...

It is what makes up acid

Anonymous said...

The bacteria helps us to digest our food in our digestive system. The bacteria also protects your organs from disease.

Brooke Carman said...

Bacteria is important in the Digestive System because.....

A large reservoir of microbes, such as bacteria, live within the large intestine and, to a lesser degree, in the rest of the digestive system. These bacteria play an important role in healthy digestion. The exact types of bacteria are particular to each person. Other factors that influence the type of bacteria in your digestive system include where you live in the world, what health conditions you have and what medications you have received.

http://www.betterhealth.vic.gov.au/bhcv2/bhcarticles.nsf/pages/digestive_system?open

Kiara M. said...

Bacteria keeps our digestive system healthy. Bacteria coat our digestive tract and act as a physical barrier to protect our blood stream from anything dangerous entering.

http://www.nourishingdays.com/2010/04/digestion-and-elimination-understanding-the-importance-of-gut-flora/

emily b said...

Bacteria is important to the digestive system because they coat the blood stream as a physical barrier to protect all of the blood that runs through us.

http://www.nourishingdays.com/2010/04/digestion-and-elimination-understanding-the-importance-of-gut-flora/

haley marsico said...

How Many Bacteria Live in the Gut?
The best estimates put the actual number of bacterial cells in the digestive system at any one time at about 100 trillion (1014 cells). The number of individual species is thought to be somewhere between 300 and 1000. The majority probably belong to about 50 species. If you could remove all of the bacteria in one person's digestive system, the whole lot would probably weigh about 1 kg (2.2 lbs).


http://www.typesofbacteria.co.uk/friendly-bacteria-digestive-system.html

Brooke DeCapua said...

It produces vitamin k and B vitamins.

Jacob Varney said...

Bacteria can make vitamins for our body. Vitamin k is for blood clotting

Anonymous said...

There is good bacteria and bad bacteria, some fights infections and some cause it.

DYLAN N said...

The bacteria produces vitamins K and B.

Ian R. said...

Bacteria breaks down sugar polymers to simple glucose.

http://phys.org/news201451539.html

Jake Esty said...

Bacteria can make vitamins and can fight infection but some can cause infections.

Lewin P. said...

They release vitamin k that helps with blood clotting.

Ryan S. said...

The bacteria helps us to digest our food in our digestive system.

Isaiah w said...

Some bacteria releases vitamin K which helps with blood clotting.

Anonymous said...

There are these bacteria in the lower intestine that absorb some water that you drink and nutrients. Also it gives off vitamin k, and vitamin k can help your blood clot.

Anthony B said...

Bacteria is so important because it creates vitamins and helps break down cellulose.

Alex Laflamme' said...

Bacteria helps you digest.
http://www.niddk.nih.gov/health-information/health-topics/Anatomy/your-digestive-system/Pages/anatomy.aspx

tanya .m said...

There are these bacteria in the lower intestine that absorb some water that you drink and nutrients. Also it gives off vitamin k, and vitamin k can help your blood clot.

Shaun B

Anonymous said...

It helps you digest food.

Will H said...

Bacteria is important because it creates vitamins and helps break down cellulose.

Zeke Sturgeon said...

Bacteria helps digest food and fights of invading microbes.

ETHAN SCOTT said...

There are these bacteria in the lower intestine that absorb some water that you drink and nutrients. Also it gives off vitamin k, and vitamin k can help your blood clot.
shaun

Antwan M said...

The Bacteria helps break down the food, and helps you digest.

Jack B said...

It helps you digest food.

Brooke B. said...

It produces vitamin K and B.

Ana said...

Friendly bacteria in the digestive system occur mainly in the colon, also called the large intestine, and in the part of the small intestine furthest away from the stomach. The oesophagus, stomach and first section of the small intestine are mostly bacteria-free because of the deterrent effect of the strong stomach acid and the high level of digestive enzymes.http://www.typesofbacteria.co.uk/friendly-bacteria-digestive-system.html

-Cole S.

Logan H. said...

Bacteria help the digestive process, breaking down the food. Bacteria can be found in your stomach acid.

Hannah M said...

They release vitamin k that helps with blood clotting.

Abby D. said...

Bacteria live in our irrigation, our food, and our bodies. What we know about bacteria was learned by scientists fight bacterial diseases. But of the thousands of types of bacteria only a minority cause diseases. Many bacteria do things that are important and even helpful to us.

https://knoji.com/why-bacteria-plays-an-important-roles-in-our-world-or-lives/