Microbe Mission B/C

Test your knowledge of various Science Olympiad events.
The48thYoshi
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Re: Microbe Mission B/C

Postby The48thYoshi » January 9th, 2018, 8:00 am

Explain the syntrophic model and provide 4 pieces of evidence to support it
Syntrophic model- relationship between the archaea and bacteria created the nucleus-containing eukaryotic cell
1. originated when ancient archaea invaded and lived within bacteria eventually forming the early nucleus
Not really sure about the other pieces of evidence or my answer in general :/
Wasn't there some sort of bacterium where they discovered infolding in the membrane similar to a primitive ER or something?
Sorry I haven’t been very active lately.
The syntrophic model proposes that ancient archaea similar to methanogens formed a symbiotic relationship, invading myxobacteria, forming the early nucleus. Some evidence is that archaea and eukarya have similar genes for certain proteins, including histones. In addition, myxobacteria are motile. They can also form multicellular complexes.  Myxobacteria also have kinases and G proteins similar to eukarya.
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Re: Microbe Mission B/C

Postby Tailsfan101 » January 10th, 2018, 7:06 am

Give the scientific name and a list of symptoms for Legionnaire's Disease.
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Re: Microbe Mission B/C

Postby themightyweeaboo » January 14th, 2018, 6:16 am

Give the scientific name and a list of symptoms for Legionnaire's Disease.
Scientific name: Legionella Pneumophila
Symptoms: Nausea, vomiting, and diarrhea

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Re: Microbe Mission B/C

Postby Tailsfan101 » January 14th, 2018, 8:13 am

Give the scientific name and a list of symptoms for Legionnaire's Disease.
Scientific name: Legionella Pneumophila
Symptoms: Nausea, vomiting, and diarrhea
What I have: Scientific Name: Legionella Bacteria
Symptoms: chest/muscle pain, diarrhea, vomiting, nausea, fever, chills, coughing, shortness of breath, headache
2020 Treasure Valley Homeschool Wiki (Division C)
2020 events: DD, GLM, DG, PM
Mini-Inv./DISCO/State/Nats
RS: 1/2/1/-
DD: -/3/2/-
HD: 2/4/4/-
CB: 3/6/1/-
ELG: -/6/-/-
GLM: -/-/-/31
WIDI: -/-/-/24
PTQ: -/-/-/41
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Re: Microbe Mission B/C

Postby themightyweeaboo » January 14th, 2018, 8:59 am

Give the scientific name and a list of symptoms for Legionnaire's Disease.
Scientific name: Legionella Pneumophila
Symptoms: Nausea, vomiting, and diarrhea
What I have: Scientific Name: Legionella Bacteria
Symptoms: chest/muscle pain, diarrhea, vomiting, nausea, fever, chills, coughing, shortness of breath, headache
About that... Hmm... I guess legionella bacteria would work, I was just being a bit specific. I should have listed more symptoms too, sorry Anyways, another question!

1: Define sanitization, sterilization, and disinfection
2: Name the pros and cons of using each

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Re: Microbe Mission B/C

Postby whythelongface » January 14th, 2018, 9:08 am

Give the scientific name and a list of symptoms for Legionnaire's Disease.
Scientific name: Legionella Pneumophila
Symptoms: Nausea, vomiting, and diarrhea
What I have: Scientific Name: Legionella Bacteria
Symptoms: chest/muscle pain, diarrhea, vomiting, nausea, fever, chills, coughing, shortness of breath, headache
Well, you're partially wrong, because that's not the scientific name. You have the right genus, but your species name is completely off. Your list of symptoms are more comprehensive, though.
Anyways, another question!

1: Define sanitization, sterilization, and disinfection
2: Name the pros and cons of using each
1. Sanitization and disinfection both mean killing pathogens on things. The difference between that and sterilization is that sterilization renders 100% of all pathogens dead, including endospores and prions, while disinfection mainly serves to reduce the numbers of pathogens on the thing.
2. Disinfection is generally quick, easy, and cheap, and it generally does not damage tissue or instruments. An example is a povidone iodine wipe, followed by isopropanol. The downside to this is that it doesn't kill everything, and it won't even begin to kill endospores. Sterilization renders things absolutely clean, which is especially useful for things such as surgical instruments, catheters, things of that sort, but the downside is that the methods used are pretty damaging to sensitive instruments. Autoclaving, for example, basically pressure-cooks the object with steam, while other chemical methods involve dipping things into carcinogenic or highly toxic liquids/gases, like formalin, chlorine dioxide, and hydrogen peroxide.
EDIT: is it just me or has formatting been kind of weird lately?
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EMORY UNIVERSITY '22
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He went out and hanged himself and then there were none."

Congratulations to WW-P South for winning 14th place at Nationals!

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Re: Microbe Mission B/C

Postby themightyweeaboo » January 14th, 2018, 9:53 am

Anyways, another question!

1: Define sanitization, sterilization, and disinfection
2: Name the pros and cons of using each
1. Sanitization and disinfection both mean killing pathogens on things. The difference between that and sterilization is that sterilization renders 100% of all pathogens dead, including endospores and prions, while disinfection mainly serves to reduce the numbers of pathogens on the thing.
2. Disinfection is generally quick, easy, and cheap, and it generally does not damage tissue or instruments. An example is a povidone iodine wipe, followed by isopropanol. The downside to this is that it doesn't kill everything, and it won't even begin to kill endospores. Sterilization renders things absolutely clean, which is especially useful for things such as surgical instruments, catheters, things of that sort, but the downside is that the methods used are pretty damaging to sensitive instruments. Autoclaving, for example, basically pressure-cooks the object with steam, while other chemical methods involve dipping things into carcinogenic or highly toxic liquids/gases, like formalin, chlorine dioxide, and hydrogen peroxide.
EDIT: is it just me or has formatting been kind of weird lately?[/quote]

Good! But Though similar, disinfection and sanatization are different things. Disinfection is defined as getting rid of microbes that may cause disease, while santization is reducing these to levels considered safe by public health standards

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Re: Microbe Mission B/C

Postby themightyweeaboo » January 14th, 2018, 9:56 am

Anyways, another question!

1: Define sanitization, sterilization, and disinfection
2: Name the pros and cons of using each
1. Sanitization and disinfection both mean killing pathogens on things. The difference between that and sterilization is that sterilization renders 100% of all pathogens dead, including endospores and prions, while disinfection mainly serves to reduce the numbers of pathogens on the thing.
2. Disinfection is generally quick, easy, and cheap, and it generally does not damage tissue or instruments. An example is a povidone iodine wipe, followed by isopropanol. The downside to this is that it doesn't kill everything, and it won't even begin to kill endospores. Sterilization renders things absolutely clean, which is especially useful for things such as surgical instruments, catheters, things of that sort, but the downside is that the methods used are pretty damaging to sensitive instruments. Autoclaving, for example, basically pressure-cooks the object with steam, while other chemical methods involve dipping things into carcinogenic or highly toxic liquids/gases, like formalin, chlorine dioxide, and hydrogen peroxide.
EDIT: is it just me or has formatting been kind of weird lately?
Good! But Though similar, disinfection and sanatization are different things. Disinfection is defined as getting rid of microbes that may cause disease, while santization is reducing these to levels considered safe by public health standards And, about the last question A more lax proctor would probably accept that, but harsher and more experienced ones would probably mark that off. Still best to use the full name though!

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Re: Microbe Mission B/C

Postby whythelongface » January 14th, 2018, 10:12 am

Good! But Though similar, disinfection and sanatization are different things. Disinfection is defined as getting rid of microbes that may cause disease, while santization is reducing these to levels considered safe by public health standards
[spoiler]Disinfection does not always get rid of microbes that cause disease. Like sanitization, disinfection also serves primarily to reduce, not completely eliminate, pathogens.[/spoiler]
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He went out and hanged himself and then there were none."

Congratulations to WW-P South for winning 14th place at Nationals!

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Re: Microbe Mission B/C

Postby Alex-RCHS » January 14th, 2018, 10:41 am

Scientific name: Legionella Pneumophila
Symptoms: Nausea, vomiting, and diarrhea
What I have: Scientific Name: Legionella Bacteria
Symptoms: chest/muscle pain, diarrhea, vomiting, nausea, fever, chills, coughing, shortness of breath, headache
Well, you're partially wrong, because that's not the scientific name. You have the right genus, but your species name is completely off. Your list of symptoms are more comprehensive, though.
In my notes, Legionnaire's is caused by multiple species of bacteria in the genus [i]legionella[/i], although it is usually caused by [i]L. Pneumophila[/i]. The best answer would be to say "bacteria in the genus [i]Legionella[/i]."
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