Microbe Mission B/C

Test your knowledge of various Science Olympiad events.
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Nano1llus10n
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Re: Microbe Mission B/C

Postby Nano1llus10n » October 9th, 2017, 3:29 pm

Lol ok.

Pick one option in each. When changing objectives from scanning to low to high powers,

a. the size of the field of view increases/decreases.
b. the field of view gets lighter/darker.
c. the size of the image increases/decreases.
d. the resolution increases/decreases.
e. the working distance increases/decreases.
f. the depth of focus increases/decreases.
[b]Event:[/b] MIT/R/S/N
[b]Anatomy and Physiology:[/b] 8/3/2/26
[b]Helicopters:[/b] 11/-/2/43
[b]Microbe Mission:[/b] 13/2/2/8
[b]Event:[/b] R/S/N
[b]Anatomy and Physiology:[/b] 1/2/8
[b]Designer Genes:[/b] 1/2/4
[b]Protein Modeling:[/b] 1/3/2
[b]Wright Stuff:[/b] 2/2/9


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whythelongface
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Re: Microbe Mission B/C

Postby whythelongface » October 9th, 2017, 4:18 pm

Lol ok.

Pick one option in each. When changing objectives from scanning to low to high powers,

a. the size of the field of view increases/decreases.
b. the field of view gets lighter/darker.
c. the size of the image increases/decreases.
d. the resolution increases/decreases.
e. the working distance increases/decreases.
f. the depth of focus increases/decreases.
a. decreases
b. darker
c. increases
d. increases
e. decreases?
f. decreases?

Can you explain the last two?
WEST WINDSOR-PLAINSBORO HIGH SCHOOL SOUTH '18
EMORY UNIVERSITY '22
SONT 2017 5th Place Medalist [Microbe Mission]

"One little Sciolyer left all alone,
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 Nano1llus10n » October 9th, 2017, 5:08 pm

Lol ok.

Pick one option in each. When changing objectives from scanning to low to high powers,

a. the size of the field of view increases/decreases.
b. the field of view gets lighter/darker.
c. the size of the image increases/decreases.
d. the resolution increases/decreases.
e. the working distance increases/decreases.
f. the depth of focus increases/decreases.
a. decreases
b. darker
c. increases
d. increases
e. decreases?
f. decreases?

Can you explain the last two?
Nice! You got them all correct!
E. working distance is defined as the distance between the front lens of the objective and the closest surface of the coverslip when the specimen is in sharp focus. Therefore, when you move objectives, the distance gets smaller since the objective lens is bigger. F. when you shift from a lower objective to a higher objective, the image becomes blurry. This is a decrease in the depth of focus.
Your turn!
[b]Event:[/b] MIT/R/S/N
[b]Anatomy and Physiology:[/b] 8/3/2/26
[b]Helicopters:[/b] 11/-/2/43
[b]Microbe Mission:[/b] 13/2/2/8
[b]Event:[/b] R/S/N
[b]Anatomy and Physiology:[/b] 1/2/8
[b]Designer Genes:[/b] 1/2/4
[b]Protein Modeling:[/b] 1/3/2
[b]Wright Stuff:[/b] 2/2/9


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whythelongface
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Re: Microbe Mission B/C

Postby whythelongface » October 9th, 2017, 5:25 pm

What is an NTD? Name one disease on the Microbe List that causes an NTD.
WEST WINDSOR-PLAINSBORO HIGH SCHOOL SOUTH '18
EMORY UNIVERSITY '22
SONT 2017 5th Place Medalist [Microbe Mission]

"One little Sciolyer left all alone,
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 » October 9th, 2017, 5:58 pm

Lol ok.

Pick one option in each. When changing objectives from scanning to low to high powers,

a. the size of the field of view increases/decreases.
b. the field of view gets lighter/darker.
c. the size of the image increases/decreases.
d. the resolution increases/decreases.
e. the working distance increases/decreases.
f. the depth of focus increases/decreases.
I feel like d should actually be decreases. It depends on how you define resolution. I’ve always thought of it as the minimum distance between two points required to distinguish between them. In this case a higher magnification objective with “better” resolution would have lower resolution, because two points could be closer together and still be viewed as distinct. However, it’s possible that I’m misunderstanding it, or you had a different measurement in mind.

Edit: nevermind, I’m pretty sure I’m wrong. What i was referring to was called point (or lateral) resolution, and i think it’s not usually used in microscopy. Furthermore, even when it is used “higher resolution” means (somewhat paradoxically) that a smaller distance can be accommodated between two distinguishable points.

My bad.

Also, I’ll take a stab at the question:
NTD stands for NeuroToxic Disease...? I’m not sure about the T, especially. 

I’ll guess schistosmiasis. Is this what can be caused by the larvae of schistosomes during the parenteral phase of infection if they crawl into the CNS?
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Re: Microbe Mission B/C

Postby whythelongface » October 9th, 2017, 6:25 pm

Also, I’ll take a stab at the question:
NTD stands for NeuroToxic Disease...? I’m not sure about the T, especially. 

I’ll guess schistosmiasis. Is this what can be caused by the larvae of schistosomes during the parenteral phase of infection if they crawl into the CNS?
Have another stab.

Also, higher resolution just means higher resolving power. This means that the ability to discriminate between two points close together is increased, nothing more.
WEST WINDSOR-PLAINSBORO HIGH SCHOOL SOUTH '18
EMORY UNIVERSITY '22
SONT 2017 5th Place Medalist [Microbe Mission]

"One little Sciolyer left all alone,
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 sciduck » October 9th, 2017, 7:29 pm

Also, I’ll take a stab at the question:
NTD stands for NeuroToxic Disease...? I’m not sure about the T, especially. 

I’ll guess schistosmiasis. Is this what can be caused by the larvae of schistosomes during the parenteral phase of infection if they crawl into the CNS?
Have another stab.
tropical. So Dengue, maybe? I don't know what N stands for though, and I don't even know what to guess.
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Nano1llus10n
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Re: Microbe Mission B/C

Postby Nano1llus10n » October 9th, 2017, 7:54 pm

Also, I’ll take a stab at the question:
NTD stands for NeuroToxic Disease...? I’m not sure about the T, especially. 

I’ll guess schistosmiasis. Is this what can be caused by the larvae of schistosomes during the parenteral phase of infection if they crawl into the CNS?
Have another stab.
tropical. So Dengue, maybe? I don't know what N stands for though, and I don't even know what to guess.
I forgot the exact acronym but I'm pretty sure that sciduck is correct about the tropical part. One example I remember is a hookworm infection
[b]Event:[/b] MIT/R/S/N
[b]Anatomy and Physiology:[/b] 8/3/2/26
[b]Helicopters:[/b] 11/-/2/43
[b]Microbe Mission:[/b] 13/2/2/8
[b]Event:[/b] R/S/N
[b]Anatomy and Physiology:[/b] 1/2/8
[b]Designer Genes:[/b] 1/2/4
[b]Protein Modeling:[/b] 1/3/2
[b]Wright Stuff:[/b] 2/2/9


Seven Lakes High School '21

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whythelongface
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Re: Microbe Mission B/C

Postby whythelongface » October 10th, 2017, 10:02 am

Neglected tropical disease. Hookworms are one example of a pathogen that causes NTDs.
It's sciduck's turn.
WEST WINDSOR-PLAINSBORO HIGH SCHOOL SOUTH '18
EMORY UNIVERSITY '22
SONT 2017 5th Place Medalist [Microbe Mission]

"One little Sciolyer left all alone,
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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sciduck
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Re: Microbe Mission B/C

Postby sciduck » October 10th, 2017, 6:26 pm

How do quinolones work?
A. Inhibit cell wall synthesis
B. Inhibit protein synthesis
C. Inhibit nucleic acid replication/transcription
D. Injure the plasma membrane
E. Inhibit essential metabolite synthesis
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