K-EQ2

How do viruses, bacteria and protists impat our lives in both positive and negative ways?** toc
 * EQ#2

Brittany
Bacteria, viruses, and protists can cause diseases. Bacteria can cause tuberculosis, viruses cause the flu, and protozoa cause malaria. But some of them also keep us healthy. The bacteria in our digestive system help us digest food. They break down molecules that our body can’t break down by itself. With the help of scientists, viruses can also be helpful to us. If they rip out the DNA or RNA, only the shell part of the virus is left. Then they can fill it with drugs or something. The virus will continue their job, which is to get into a cell, multiply, and spread. After doing the genetic material replacement, the virus will start spreading the medicine to other cells. I chose this picture because it’s the bacteria that are inside your digestive tract. [] Back to top

Madi: wow britney very nice picture (: Deric: That looks rather creepy... Thanks for the info Hansol: It looks really cool, like one scene of a game?

Madi
Bacteria are both good and bad. Without bacteria we would die, but some bacteria could easily kill us: it all depends on which ones they are. The good ones, those we need to survive, they are there to digest our food (in our intestines) and to live in our skin and in our mouth. By doing so they provide a protection against bad bacteria, that make you sick, and these are called 'pathogenic bacteria'. These kinds of bacteria have a higher success rate if your immune system is weakened, or if they manage to get into your body in large amounts, by contaminated food for instance. As we know, bacteria is everywhere. But even the tiniest pathogenic bacteria, if it manages to get into your system, can have fatal results. For example, Lyme Disease is caused at least three different species of bacteria belonging to the genus //Borellia//. The bacterial disease is transferred to humans by the bite of an infected tick. The symptoms include; fatigue, depression, fever, head ache, depression, and skin rash. If the disease is left untreated other symptoms include problems in the heart, joints, and nervous system. Lyme disease is deadly. In most cases, the infection and its symptoms are eliminated with antibiotics. But some Lyme disease patients who have completed a course of antibiotic treatment continue to have symptoms such as severe fatigue, sleep disturbance, and cognitive difficulties

This is what the Borellia bacteria looks like inside your system, these are harmful bacteria. http://en.wikipedia.org/wiki/File:Borrelia_burgdorferi-cropped.jpg Daniel: Yep, in the picture those bacteria don`t look good! Deric: good information. I never knew about Borellia, thanks! Hansol: Those bacteria look like germs! Brittany: I like how you gave good examples on how bacteria can be good and bad. = =

Daniel
Some bacteria are good for us and some causes us harm. Most people think that they are very dirty and they will make us sick. But, in fact they don`t know is doing all the "dirty work". They help us clean up our Earth, for example, we use lots of plastic bags which takes a long time for them to diffuse. Now, we can use bacteria to eat away and diffuse them faster than ever! Some of them give us oxygen using photosynthesis, creating life. While people are busy having their fast paced life, in the world of bacteria, they are working for us silently......

Others that are pathogenic(harmful) can cause us diorrhea and other diseases. Some can be treated by antibiotics. Here is a picture of a bacterium:

[] Back To Top Caroline: That's cool Daniel! I like the picture of the bacterium. Deric:Very good picture man, you sure showed us the goods of a bacteria. Hansol: Good picture of showing bacterium's structure. Kyle: Good picture, very original haha, but thats not enough words right?

Caroline
You might think that viruses, bacteria, and protozoa are all yucky blucky germs that make us sick and cause people to die. That is true, but it is an opinion. Viruses can be horrible, they cause pneumonia, and that makes us very sick, but sometimes they can do good. No offense to flowers, but viruses sometimes create beautiful patterns on tulips, and I don't think that makes the flowers die or get hurt. Bacteria is the one responsible for yogurt. Yes, the bacteria is what lets milk turn into yogurt, yum! Protozoa are causers of diseases, like malaria, but like I've said with the others, they can be helpful too. When protozoa eats stuff, its waste gives off nitrogen, and that really helps a plant's growth. Well, there're a new side of everything. This is a picture of the streptococcus thermophilus in yogurt. [] Deric:I don't want to drink yogurt again... Just kidding. Written pretty well! Ray: Good job. I think the picture's pretty cool. I never knew that viruses make patterns on tulips. Just one question. How does that have a positive impact on our lives? Back to Top

Deric
Viruses, bacteria and protists impact our lives in all types of ways. Lets start with negative ways. First of all, we all know they give us many various diseases. They weaken our immune system and make us not work properly. They can practically kill us if they are strong enough. They have all types of killer diseases. //__**Living organism that does good and bad. Has no organelles like normal cells.**__//
 * Bacteria**

//Plague-Yersinia pestis-S.Kitasato, A.T.E. Yersin, 1894// This disease usually come from fleas. If the bubonic plague isn't treated in about 4-7 days, the patient has only a fifty percent chance of survival. This my friends, is also believed to cause the black death in the middle ages.

[] [] //Tuberculosis-Mycobacterium tuberculosis-R.Koch, 1882// Tuberculosis usually attack the lungs but they can attack most things in your central nervous system. It's symtoms include fever, coughing(sometimes blood), night sweats and weight loss. (I don't think you want to get TB just to lose weight)
 * 'Bubonic plague** is the best-known manifestation of the bacterial disease plague...The most famous symptom of bubonic plague is swollen lymph glands, called bubouls. These are commonly found in the armpits, groin or neck.'

'Tuberculosis is spread through the air, when people who have the disease cough, sneeze, or spit. One third of the [|world's current population] has been infected with //M. tuberculosis//, and new infections occur at a rate of one per second.' [] (Getting the info) Image: '[|Phagocytosis of Mycobacterium tuberculosis]' [|www.flickr.com/photos/47353092@N00/2527157909] [] (for more bacteria info) These are bacteria deseases. They are harmful and scary. Cell=Sun 'Acute viral rhinopharyngitis,** or **acute coryza**, usually known as the **common cold**, is a highly contagious, viral infectious disease of the upper respiratory system primarily caused by picornaviruses (including rhinoviruses ) or coronaviruses .**'** [] In another words, the Common cold is a disease that can be spread around really fast and easily. The symtoms include sneezing, coughing, stuffy nose, sore throat, tired muscles(muscle fatigue) and no appetite. Again, if you are on a diet, I still don't think you should try this. [] [] []
 * Virus**
 * //__Non living 'machine'(non-living because it doesn't require energy of any sort. Does good and bad. Has a outside coat to protect it and a core filled with DNA or RNA to inject into other cells. There is NO cure. They are tiny in size.__//**
 * Virus=Earth

also known as the 'I can't breathe help me!' disease I'm doing this since my home town was attacked
 * SARS-Severe Acute Respitory Syndrome**

'Initial symptoms are flu like and may include: [|fever], [|myalgia], [|lethargy], [|gastrointestinal] symptoms, [|cough], [|sore throat] and other non-specific symptoms. The only symptom that is common to all patients appears to be a fever above 38 [|°C] (100.4 [|°F]). [|Shortness of breath] may occur later.' [] This has cause a near pandemic (which means it almost spreaded all over the world) around November 2002-July 2003. Just to tell you how close, it spreaded to 37 countries. SARS [] [] As you can see, I have chosen something very common and something very crazy. Both are extremely contagious.


 * Protists

** [|**http://media.collegepublisher.com/media/paper932/stills/3c0fe13b85d37-54-1.jpg**] 'The parasites multiply within [|red blood cells], causing symptoms that include symptoms of [|anemia] (light-headedness, shortness of breath, [|tachycardia], etc.), as well as other general symptoms such as [|fever], [|chills], [|nausea], [|flu-like illness], and, in severe cases, [|coma], and death.' [] [] Malaria is a disease that is passed around by [|//Anopheles// mosquito] When this mosquito bites an infected patient, the protist from the patient is sucked into the mosquito. When the mosquito takes a bite of another person, the protozoans get into the mosquitoes saliva and infects the next person. [|Click here for deadly diseases]
 * 'Malaria** is a [|vector]-borne [|infectious disease] caused by [|protozoan] [|parasites]...killing between one and three million people'

The Goods: Well, don't think bacteria, viruses and protist are just Bad. They do alot of good too! Gene treatment [] Gene treatment is a type of treatment scientist hope to do. It is when you empty the DNA or RNA of the virus and put new DNA/RNA. You then let it into a patient. The virus will enter and do its normal function, use the energy from cells to spread. Except instead of doing harm, the new DNA/RNA will make it kill certain things. They hope that it can be used to kill cancer, bring back eyesight to the blind and many other things that is hard to accomplish or even do. Bacteria like wise isn't all bad. In fact, most of them do nothing or even good like viruses. First of all, they help make tasty products. Cheese, yogurt and quite a few others. They help clean up the earth by cleaning up dangerous oil spills that harm aquatic animals. How? Well some bacteria love gasoline so people take control of these bacteria's and put them in the sea to help them clean up the sea. They help us make vitamins that are very important to us. Of course, they help you digest food in your stomach and intestines. If you didn't have them, you would not have been able to survive. Last but not least. In fact, the biggest reason why they are great is that they helped change the carbon dioxide of earth into oxygen. Without the oxygen, plants wouldn't have grown, animals would never have existed and other liveing things would have been gone. [] [] "Breath in, breath out" Wow, can't you just taste the fresh air? Yup thats good air alright. It is made by plants and algae and many other plant like structures. Uh, we are talking about protist here...Algae is protist(or is made up of). It lives in wet/damp surroundings and live. Algae use sunlight to make their food. They then give out oxygen to the world. Thats not it, protist feed on decaying plants, animals and trash. Which means, they help get rid of things we don't need. Kind of like one of those locker clean ups.
 * Viruses**
 * Bacteria**
 * Protist**

This is the end of my long reply. I hope you learned something

Hansol: Hey.. this is really good. How did you find all those information? Brittany: Wow, that's a lot of good info. The part about tuberculosis is freaky. I like the protist picture. Deric:Go to wikipedia and []. There is alot of info and viral names and stuff there. Ray: That's a pretty informative post. I like the tanker oil spill picture. Kyle: God Deric dont take up so much space.. Haha joking joking. Very very very good post. Back to top

Hansol
Virus is often used in animation that scientists name for bad structures.. and many people think that most of viruses cause harm. However, there are viruses that actually do help people. The disease-causing substance in virus is genetic material. Scientists pull virus's genetic material off, and put another genetic material that helps human body function in. In that way, virus is used as messenger to inside of human body. There is another thing that viruses do good things: some of them have ability to make toxins to bacteria. That toxin really help bacteria.(But not human) Bacteria, if people hear it, they might think of bad food poisoning or something nasty, but bacteria also do good things. For one example, they convert nitrogen in soil into simpler nutrients so plants could absorb those easily! If they didn't, plants won't be able to work. [] This is Rhizobium Bacterium, which converts nitrogen into simpler nutrients. Deric:Really? I didn't know bacteria converted made nitrogen. Thats cool.

Troy
Most of the viruses are harmful to us. Plants, animals, bacteria, every living thing, whether multicellular or single-celled, can be infected with a virus with specific for the organism. Since its' genetic material multiply their numbers and keep infecting, it destroys our immune systems and harm our body. Also, they spread to different person and it goes and goes. There are a common disease that is caused by a viruses like cold. The symptoms of the cold are coughing, soar throat, sneezing, etc. I'm sure you got a cold before, then you will know all the symptoms for cold. However, the viruses can be harmless to people. For example, scientists try to do a process of Gene treatment. It helps to refresh the bad DNA/RNA. Secondly, protists are harmful, also. Some deadly disease is caused by the protists. For example, there is a disease call kinetoplastid, a group of flagellate protozoa.

Lastly, bacteria are mostly helpful to our environment. Bacteria help cleaning our environment, they let us digest our food, make a good product of food like Cheese, additional thing that bacteria do for the Earth is changing Carbon dioxide to Oxygen that we can breathe in.

Ray
Viruses, bacteria, and protists can both be bad and good. What's bad about them is that they can all make people sick and possibly even die. For example, viruses cause AIDS. Bacteria give people tuberculosis. Protists cause malaria. The good things about them are that they can help us. Viruses can have their harmful genetic material replaced with good ones that can heal things such as tumors. Usually, you would have to take a drug for the tumor and that causes side effects. Bacteria helps your body break down food that your stomach can't. They can be used to make vitamins, a lot of the food we eat (such as cheese and yogurt), and clean up oil spills. Protists supply over one half of the world's oxygen. They also decompose and recycle nutrients. I chose this picture because it shows bacteria eating up oil, which is one of the ways they help us.

Travis
= = Viruses, bacteria and protists can both be helpful and harmful to us. Not all of them are harmful, most of them are very helpful like the bacteria. Most say they are very dangerous, they are not as dangerous as you think. If there was not bacteria then I don't even know where or when you will be on this planet because bacteria live on earth before we do and make life easy. They were the one who make oxygen, yes, they can also Photosynthesis like plant. And there probably about million of bacteria on you or in you right now. Virus, you might of heard of computer virus, computer virus and virus are similar to each other but they also have differences. Virus is a microscopic and non-living thing that can be harmful and helpful. Viruses can inject its genetic material in to a host cell, it going to invade, replicate it self and kill the cell, and that is harmful. But, it can also be helpful. Viruses are also responded for AIDS. The computer virus do the same thing, the information is like the host cell. Some viruses they come and go like birds. Some sit there and do nothing. They only inject its genetic material when they have the right attachment of it pray. Protists it the most harmful, I believe. They are the the one that cause the most deadly disease, common known as Malaria. It can kill over 3000 people each day. Another helpful protist is Trichonympha which lives in the digestive system of termites and produces cellulase, an enzyme that enables termites to digest wood. See not all of them are helpful or harmful to human. http://www.mnhn.fr/mnhn/geo/Collection_Marine/photos/Radiolaire.jpg I choose this picture because it a picture of a Radiolarians. Radiolarians are amoeboid protozoa that produce intricate mineral skeletons, typically with a central capsule dividing the cell into inner and outer portions, called endoplasm and ectoplasm. Back to top
 * How do viruses, bacteria and protists impact our lives in both positive and negative ways? **

Kyle
Well, Viruses, Bacteria, and Protists impact our lives a lot. For example, Protists can help us a lot, and can kill us. Protists are the reason for Malaria, one of the worst diseases in Africa. Protists also change the nitrogen in the air and break it down into the soil so the plants can grow. Bacteria have been around for a very long time. Long ago, Archaebacteria popped up. If it weren't for Archaebacteria, then we woulnd't be here. Archaebacteria break down nitrogen in the soil, which makes the plants grow, which makes oxygen, which supports humans. Viruses also help us. Some viruses can help us with digestion, while some as well can kill us. Some scientists have made up a plan to extract the Dna (Rna) from the capsule and put in helpful drugs. Then the virus will go about it's normal business, multiplying itself, spreading the drug. But, if it went wrong, then it would be a complete failure. For example, the virus just crumbles away because it has no host. Then it would be useless.

Here is my picture: []

Santiago
Everyone thinks that bacteria are bad for us and they use antibacterial hands soap to kill all the bacteria. Just because on the bottle says that it kills 99.9% of the bacteria it doesn’t mean that you are not going to get sick. I f you didn’t know that .1% of bacteria that survive will soon start reproducing. All the bacteria that reproduces from that bacteria that survived the antibacterial hand soap is going to get stronger against antibacterial hand soap and next time you use it its going to be harder to kill the bacteria and it is just going to make it stronger against anti bacterial hand soap.

This is a common antibacterial hand soap. As you can see it looks a lot like normal soap but it is not. Back to top

Kira
Bacteria, viruses and protists can be good and they can cause terrible diseases. They can make you very ill and sometimes, in extreme cases, can even cause death. However, there are many bacteria, viruses and protists that do a lot of good in the world as well. For example, certain bacteria decompose recycled plastic and glass. If we didn't have these types of bacteria, we would be knee deep in trash everywhere we go with no way to recycle them. Some scientists are developing a way to use bacteria to make medicine. Of course, there are always bad bacteria, viruses and protists. Some of the most deadliest diseases are caused by protozoans, such as AIDS.



[] This is a picture of an HIV cell.

Santiago- I agree with you completely. Good job.

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