frazzles14
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#1
Report Thread starter 1 year ago
#1
I've come across this question, where you have to say which of the statements are true:

Statement 1: Microtubules are part of the ‘9 + 2’ formation in bacterial flagella.
Statement 2: Microtubules can be prevented from functioning by a respiratory inhibitor.
Statement 3: Microtubules are involved in moving chromosomes from the equator to the poles of the cell
during mitosis.

It says that 2 and 3 are true, but I am confused as I thought microtubules formed the 9+2 formation? And what is a respiratory inhibitors role for microtubules? Any explanations are appreciated, thanks!
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OxFossil
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#2
Report 1 year ago
#2
(Original post by frazzles14)
I've come across this question, where you have to say which of the statements are true:

Statement 1: Microtubules are part of the ‘9 + 2’ formation in bacterial flagella.
Statement 2: Microtubules can be prevented from functioning by a respiratory inhibitor.
Statement 3: Microtubules are involved in moving chromosomes from the equator to the poles of the cell
during mitosis.

It says that 2 and 3 are true, but I am confused as I thought microtubules formed the 9+2 formation? And what is a respiratory inhibitors role for microtubules? Any explanations are appreciated, thanks!
Flagella in all 3 Domains of life (Archaea, Prokayotes and Eukaryotes) look similar and perform similar functions. But they evolved separately, and bacterial (prokayote) flagella don't have the 9+2 microtubule structure - that's the eukaryote structure. Eukaryotic flagella use ATP to move, so respiratory inhibitors (ie poisons) could paralyse them. Prokaryote flagella use ion-gradients to move - obviously, these too can be paralysed by anything that abolishes the ion potentials
https://biologydictionary.net/flagellum/
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OxFossil
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#3
Report 1 year ago
#3
(Original post by frazzles14)
I've come across this question, where you have to say which of the statements are true:

Statement 1: Microtubules are part of the ‘9 + 2’ formation in bacterial flagella.
Statement 2: Microtubules can be prevented from functioning by a respiratory inhibitor.
Statement 3: Microtubules are involved in moving chromosomes from the equator to the poles of the cell
during mitosis.

It says that 2 and 3 are true, but I am confused as I thought microtubules formed the 9+2 formation? And what is a respiratory inhibitors role for microtubules? Any explanations are appreciated, thanks!
Flagella in all 3 Domains of life (Archaea, Prokayotes and Eukaryotes) look similar and perform similar functions. But they evolved separately, and bacterial (prokayote) flagella don't have the 9+2 microtubule structure - that's the eukaryote structure. Eukaryotic flagella use ATP to move, so respiratory inhibitors (ie poisons) could paralyse them. Prokaryote flagella use ion-gradients to move - obviously, these too can be paralysed by anything that abolishes the ion potentials
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frazzles14
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#4
Report Thread starter 1 year ago
#4
(Original post by OxFossil)
Flagella in all 3 Domains of life (Archaea, Prokayotes and Eukaryotes) look similar and perform similar functions. But they evolved separately, and bacterial (prokayote) flagella don't have the 9+2 microtubule structure - that's the eukaryote structure. Eukaryotic flagella use ATP to move, so respiratory inhibitors (ie poisons) could paralyse them. Prokaryote flagella use ion-gradients to move - obviously, these too can be paralysed by anything that abolishes the ion potentials
https://biologydictionary.net/flagellum/
Ah thank you so much!
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frazzles14
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#5
Report Thread starter 1 year ago
#5
Ah thank you so much!
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