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posted by  52010 on 11/2/2009 7:10:25 PM  |  status: Live  |  Earned Karma: 25

motility

Course Textbook Chapter Problem Needs by
N/A N/A N/A N/A 11/3/2009 at 12:00:00 PM
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I was supposed to match the organelle with the human disorder. The disorder was " A young man learns that he is infertile because his sperm are nonmotile." I put lysosome because sperm move because of flagella which are made up of microtubules which are made there. However I got this answer wrong. What organelle could it be?
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posted by Anonymous on 11/3/2009 1:56:29 PM  |  status: Live
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I just can't believe your teacher thinks mitochondria is a reasonable option. The whole cell would stop working. I really do belive it is immotile cilia syndrome with a microtubule defect.

I would very much appreciate learning your teacher's thoughts.

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posted by Anonymous on 11/2/2009 8:18:52 PM  |  status: Live
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A flagellum is a tail-like projection that protrudes and functions in movement. An example of a eukaryotic flagellated cell is the spermcell, which uses its flagellum to propel itself through the female reproductive areas.  Eukaryotic flagella are structurally identical to eukaryotic cilia, although distinctions are sometimes made according to function and/or length.
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posted by AmyC on 11/2/2009 10:55:30 PM  |  status: Live
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Response Details:
The organelle is mitochondria.
This is because the medical condition of the youngman states that his sperms are nonmotile.
For the sperms to be motile, the flagella need to be active.
For the flagella to be active, it needs ATP.
The mitochondria produces the energy [ATP] for the sperm.
So the reason is an underactive mitochondria. This is the reason for the infertility of the sperm
hope it helps
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posted by Indie on 11/3/2009 12:25:48 AM  |  status: Live
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I think the organelle could be mitochondria....
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posted by Anonymous on 11/3/2009 1:32:10 PM  |  status: Live
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If mitochondria don't work, the cell is in very big trouble.
Primary ciliary dyskinesia (PCD), also known as immotile ciliary syndrome
or Kartagener Syndrome (KS), is a rare defect.

There is an international effort to identify genes that code for inner dynein arm proteins

or proteins from other ciliary structures (radial spokes, central apparatus, etc) associated with PCD.

I think it mitochondria is not right. Sorry.
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posted by Anonymous on 11/3/2009 1:40:51 PM  |  status: Live
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If not the cilia, then the microtubules in the cilia? IS that what teacher means?
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