Cell vs. virus: A battle for health – Shannon Stiles

Uploaded by admin on December 25, 2015 at 8:24 am

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All living things are made of cells. In the human body, these highly efficient units are protected by layer upon layer of defense against icky invaders like the cold virus. Shannon Stiles takes a journey into the cell, introducing the microscopic arsenal of weapons and warriors that play a role in the battle for your health.

Lesson by Shannon Stiles, animation by Igor Coric.

Comments

Dassh says:

December 25, 2015 at 8:42 am

The mitochondria its the powerhouse of the Cell!!

Thabit Mikidadi says:

December 25, 2015 at 9:04 am

all of this and you're telling me there's no God.

NOTICE ME SENPIA says:

December 25, 2015 at 9:22 am

I feel so strong that I have in army in my cells

Keith Davenport says:

December 25, 2015 at 9:38 am

It looks like oxygen molecule is putting up the middle finger

Mario Luigi says:

December 25, 2015 at 9:41 am

You didn't answer what happened if the virus was deadly

alrik says:

December 25, 2015 at 9:45 am

I'm a virus and I feel offended. We are more symmetric and pretty.

Charlingston says:

December 25, 2015 at 9:45 am

The mitochondria is the powerhouse of the cell

Turd Ferguson says:

December 25, 2015 at 10:11 am

3:04 That oxygen molecule is flipping you off.

Noor Alam says:

December 25, 2015 at 10:12 am

Viruses are particularly dangerous because they don't seem to serve any useful purpose for us . The amount of viruses on earth is far more than the amounts of human .We are outnumbered big time. And we are exposed to them all the time. It is foolish to think that we could kill all viruses. If we have to make human safe from the viruses were either need to quarantine humans from the natural or engineer such a strong immune system that the human body will resist virus attacks of any kind.
But now due to industrialization and advances of science human society has been getting more exposure to viruses than ever before. On the one hand we are traveling more, and thereby coming into contact with more viruses than ever before. On the other hand, by keeping alive millions of children who would have died of all sorts of diseases and by protecting people with all sorts of vaccinations, we are creating an immune system that is now more vulnerable to more things that could be easily battled with an stronger immune system. In other words, we have the worst of both worlds: the human body is getting weaker, and it is getting easier to spread diseases.
Bacteria are far less dangerous than viruses. In fact, most bacteria are useful to us . Our body contains many more bacteria cells than human cells, and we need them as they carry out vital functions such as helping us digest food and even sometimes fighting viruses. Unfortunately, we tend to kill them by the millions when we use antibiotics. An antibiotic does not discriminate between friend and foe, it kills all bacteria in your body. In the old days you would replenish your body simply by breathing them in the air and by drinking natural water . These days we so diligently kill bacteria in the air and in the water that there is virtually no way to replenish them in our body after having exterminated them. Whatever term you want to use for the beneficial work of bacteria, it's being weakened generation after generation.