1] Outline the role of mitochondria in the metabolism of the cell. (a diagram is given, it's of a cell from the epithelial lining of the mammalian intestine)
2] Describe how a sample of whole chloroplasts cold be obtained from leaf tissue.
In advance, Thank You Very Much!
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Two simple questions on organelles watch
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Mykk3i
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- 24-09-2010 18:30
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Peace0fM1nd
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- 24-09-2010 18:34
im sure you will find fully descriptive and illustrated diagrams in any good biology text book, better than any1 can give here or maybe google it.
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Mykk3i
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- 24-09-2010 18:36
(Original post by Peace0fM1nd)
im sure you will find fully descriptive and illustrated diagrams in any good biology text book, better than any1 can give here or maybe google it. -
Peace0fM1nd
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- 24-09-2010 18:38
so whats the problem? what text books do you use, they mustn't be any good if you couldn't fnd any info about this.
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skins345669
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- 24-09-2010 18:42
+1 for textbooks.
Learn. -
Mykk3i
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- 24-09-2010 18:44
(Original post by Peace0fM1nd)
so whats the problem? what text books do you use, they mustn't be any good if you couldn't fnd any info about this.
yerh....................
I read the Mitochondria section...and there's nothing about metabolism...unless it's "The cristae provide a huge interna; surfaces area for te chemical reactions characteristic of the mitochondrioa to occur. Most mitochondrial reactions involve the production of usable cellular energy called ATP....'
About the chloroplast....I don't recall learning anything bout a sample obtaining from leaf tissue...unless the answer is to pull out a young leaf from the Elodea plant... -
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- 24-09-2010 18:48
if the answers are not in your textbook, why not look up these organelles on wikipedia / google. eg the role of mitochondria in the production of ATP. I don't think there's much point just asking strangers on TSR to tell you what to say - you won't learn anything that way.
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- 24-09-2010 18:53
(Original post by Mykk3i)
1] Outline the role of mitochondria in the metabolism of the cell. (a diagram is given, it's of a cell from the epithelial lining of the mammalian intestine)
2] Describe how a sample of whole chloroplasts cold be obtained from leaf tissue.
In advance, Thank You Very Much!
2) I'm not sure about this one.
Please rep if you find the answer useful -
funghi-lover
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- 24-09-2010 19:08
2) Describe the process of cell fractionation.
http://www.freewebs.com/ltaing/Last edited by funghi-lover; 24-09-2010 at 19:12. -
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- 24-09-2010 19:10
The Mitochondria are responsible for the production of ATP - the cells energy source - which is used for 'active' processes (such as transport across membranes, and also for biochemical reactions). Do you need to know about the update of nutrients from the intestines?
Not sure how you would extract chloroplasts if I am honest? -
Mykk3i
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- 25-09-2010 04:05
(Original post by jimbo139)
if the answers are not in your textbook, why not look up these organelles on wikipedia / google. eg the role of mitochondria in the production of ATP. I don't think there's much point just asking strangers on TSR to tell you what to say - you won't learn anything that way.
I'm jsut trying to ask for help not the exact answer....
N it's pretty much the same as to find answers online.. -
Mykk3i
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- 25-09-2010 04:06
(Original post by funghi-lover)
2) Describe the process of cell fractionation.
http://www.freewebs.com/ltaing/ -
Mykk3i
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- 25-09-2010 04:07
(Original post by _Andrew_)
The Mitochondria are responsible for the production of ATP - the cells energy source - which is used for 'active' processes (such as transport across membranes, and also for biochemical reactions). Do you need to know about the update of nutrients from the intestines?
Not sure how you would extract chloroplasts if I am honest?
nah, that's too much in depth xD
lol If you are honest, the other guy showed me a site about centrifugation so hope that is correct. :]
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princess_xanthe
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- 25-09-2010 04:21
(Original post by Mykk3i)
I'm jsut trying to ask for help not the exact answer....
N it's pretty much the same as to find answers online.. -
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- 27-09-2010 14:28
I'm with everyone else especially on part one, information on that is abundant.
On the chloroplasts, did this a couple of times last year:
Grind leaves in cold isotonic buffer
Filter paper
low speed centrifuge - pellet unbroken cells + nuclei
centrifuge supernatant at higher speed to pellet chloroplasts
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