(Solved) Where is the crista in relation to the mitochondrial inner membrane space?

BigBuck92

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9 years ago

Where is the crista in relation to the mitochondrial inner membrane space?

Are there overlapping terms, for instance is crista a portion of the inner membrane or inner membrane space? I have also heard of intercristal and intracristal space.

Are those components of the Inner Membrane Space?

Is this understanding of their location correct: intercristal space is within the cristae or in the depth of the Inner Membrane Space closest to the mitochondria midline/center, whereas the intracristal space is between the cristae closer to the mitochondria's outer edge, like in the trough of the fold closest to the outer membrane?

I am asking for confirmation on the intercristal/intracristal space. I am also seeking an explanation on whether the inner membrane contains crista or whether they are in some weird way separate identities.

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bio_man

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ny1212a

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9 years ago

thanks!

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BigBuck92 Author

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9 years ago

Thank you so much Bio Man. I was unclear before you gave that explanation. Do you know about intercrista/intracrista space? Could you add that to your graphic by chance?

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bio_man

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9 years ago

The inter-membrane space delimits the region bound between the inner- and outer-mitochondrial membranes (hence the name). The intercristal space is also known as the mitochondrial matrix and is bound by the inner-mitochondrial membrane (also known as the cristal membrane).

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BigBuck92 Author

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9 years ago

Thanks again. One more thing, I did not see intracristal space diagrammed on the picture you attached or within your helpful reply. Intracristal space is another term I have heard thrown around. Is this valid terminology, I have heard some people say that Intracristal space is not a real biological concept (or just made up). My first question is: Is intracristal space a valid idea? Secondly: If it is a valid idea, what is it?!

Thank you so much. I appreciate your replies.

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bio_man

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9 years ago

Quote from: BigBuck92 (9 years ago)

Is this valid terminology, I have heard some people say that Intracristal space is not a real biological concept (or just made up). My first question is: Is intracristal space a valid idea? Secondly: If it is a valid idea, what is it?!

Hey again, thing is, in my experience teaching and learning biology, I've never used that term, so in my mind, it's not important.

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BigBuck92 Author

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9 years ago

Thanks!

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