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?
Re: Microbe Mission B/C
Posted: September 6th, 2017, 12:54 pm
by whythelongface
Gram-positive: the peptidoglycan layer in G- bacteria that resists staining also works against antibiotics entering the cell.
Re: Microbe Mission B/C
Posted: September 6th, 2017, 1:40 pm
by Alex-RCHS
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.
Re: Microbe Mission B/C
Posted: September 6th, 2017, 1:53 pm
by whythelongface
When naming strains of influenza, what do H and N stand for, and why are H and N integral to the viral cycle?
Re: Microbe Mission B/C
Posted: September 9th, 2017, 8:37 am
by The48thYoshi
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
Re: Microbe Mission B/C
Posted: September 9th, 2017, 8:51 am
by whythelongface
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!
Re: Microbe Mission B/C
Posted: September 9th, 2017, 11:04 am
by The48thYoshi
A. What are magnetosomes?
B. What kind of organisms have these organelles?
C. What is their function?
Re: Microbe Mission B/C
Posted: September 9th, 2017, 11:23 am
by Alex-RCHS
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.
Re: Microbe Mission B/C
Posted: September 10th, 2017, 12:01 pm
by The48thYoshi
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!
Re: Microbe Mission B/C
Posted: September 10th, 2017, 2:43 pm
by Alex-RCHS
Chloroplasts are widely known to facilitate photosynethesis in plants. Name two other distinct functions that chloroplasts perform.