Microbe Mission B/C

Test your knowledge of various Science Olympiad events.
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Alex-RCHS
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Microbe Mission B/C

Post by Alex-RCHS » September 5th, 2017, 2:08 pm

Welcome to the Question Marathon for Microbe Mission in 2018!
Short Description: Teams will answer questions, solve problems, and analyze data pertaining to microbes.

Etiquette reminder! When answering a question, either hide your answer or use the "spoiler" function.

First Question:
1. Are antibiotics more effective on gram positive or gram negative bacteria? Why?
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Re: Microbe Mission B/C

Post by whythelongface » September 6th, 2017, 12:54 pm

Gram-positive: the peptidoglycan layer in G- bacteria that resists staining also works against antibiotics entering the cell.
Last edited by whythelongface on September 6th, 2017, 1:50 pm, edited 1 time in total.
WEST WINDSOR-PLAINSBORO HIGH SCHOOL SOUTH '18
EMORY UNIVERSITY '22
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"One little Sciolyer left all alone,
He went out and hanged himself and then there were none."

Congratulations to WW-P South/Grover for winning 2nd/1st place at NJ States!

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Re: Microbe Mission B/C

Post by Alex-RCHS » September 6th, 2017, 1:40 pm

whythelongface wrote:Gram-positive: the peptidoglycan layer in G- bacteria that resists staining also works against antibiotics entering the cell.
It is gram positive, but it's actually because the outer membrane present on gram negative bacteria prevents the antibiotics from entering the cell.
Your turn.
Last edited by Alex-RCHS on September 6th, 2017, 2:00 pm, edited 1 time in total.
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Re: Microbe Mission B/C

Post by whythelongface » September 6th, 2017, 1:53 pm

When naming strains of influenza, what do H and N stand for, and why are H and N integral to the viral cycle?
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"One little Sciolyer left all alone,
He went out and hanged himself and then there were none."

Congratulations to WW-P South/Grover for winning 2nd/1st place at NJ States!

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Re: Microbe Mission B/C

Post by The48thYoshi » September 9th, 2017, 8:37 am

whythelongface wrote:When naming strains of influenza, what do H and N stand for, and why are H and N integral to the viral cycle?
H stands for Hemagglutinin and N for neuraminidase. They are proteins on the surface of  the virus and help with attachment
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Re: Microbe Mission B/C

Post by whythelongface » September 9th, 2017, 8:51 am

The48thYoshi wrote:
whythelongface wrote:When naming strains of influenza, what do H and N stand for, and why are H and N integral to the viral cycle?
H stands for Hemagglutinin and N for neuraminidase. They are proteins on the surface of  the virus and help with attachment
Correct! Specifically, hemagglutinin aids in attachment and neuraminidase in separation from the host cell. Your turn!
WEST WINDSOR-PLAINSBORO HIGH SCHOOL SOUTH '18
EMORY UNIVERSITY '22
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"One little Sciolyer left all alone,
He went out and hanged himself and then there were none."

Congratulations to WW-P South/Grover for winning 2nd/1st place at NJ States!

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Re: Microbe Mission B/C

Post by The48thYoshi » September 9th, 2017, 11:04 am

A. What are magnetosomes?
B. What kind of organisms have these organelles?
C. What is their function?
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Re: Microbe Mission B/C

Post by Alex-RCHS » September 9th, 2017, 11:23 am

The48thYoshi wrote:A. What are magnetosomes?
B. What kind of organisms have these organelles?
C. What is their function?
I only briefly read this a long time ago, but here goes nothing:
A. A type of plastid (multi-membraned organelle resulting from endosymbiosis) that can detect magnetic fields.
B. This is where I'm not sure. Bacteria, I think. Is it a type of bacteria that metabolically certain metals?
C. They detect magnetic fields and allow the cells that contain them to orient around these magnetic fields in search of some sort of nutrient.
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Re: Microbe Mission B/C

Post by The48thYoshi » September 10th, 2017, 12:01 pm

Alex-RCHS wrote:
The48thYoshi wrote:A. What are magnetosomes?
B. What kind of organisms have these organelles?
C. What is their function?
I only briefly read this a long time ago, but here goes nothing:
A. A type of plastid (multi-membraned organelle resulting from endosymbiosis) that can detect magnetic fields.
B. This is where I'm not sure. Bacteria, I think. Is it a type of bacteria that metabolically certain metals?
C. They detect magnetic fields and allow the cells that contain them to orient around these magnetic fields in search of some sort of nutrient.
A. Plastids are only found in eukaryotic organisms. Magnetosomes are just a group of magnetite crystals. (I'm pretty sure this is right, correct me if I'm wrong.
B. correct. They are magnetotactic bacteria.
C. Correct. They help the magnetotactic bacteria orient along the Earth's magnetic field lines in magnetotaxis. They help the bacteria find an ideal microaerophilic environment
Your turn!
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Re: Microbe Mission B/C

Post by Alex-RCHS » September 10th, 2017, 2:43 pm

Chloroplasts are widely known to facilitate photosynethesis in plants. Name two other distinct functions that chloroplasts perform.
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