Membrana Mitocondrial Externa
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Questions and Answers

La membrana mitocondrial interna és molt permeable i conté porines

False (B)

La cardiolipina és un fosfolípid que es troba en moltes altres parts de la cèl·lula

False (B)

La membrana mitocondrial externa conté molts enzims de la cadena respiratòria

False (B)

L'increment de colesterol als mitocondris pot causar cirrosi

<p>True (A)</p> Signup and view all the answers

La membrana mitocondrial interna conté més proteïnes que lípids

<p>True (A)</p> Signup and view all the answers

La cardiolipina és un fosfolípid que es troba en moltes altres parts de la cèl·lula

<p>False (B)</p> Signup and view all the answers

La membrana mitocondrial externa és molt permeable i conté porines

<p>True (A)</p> Signup and view all the answers

L'increment de colesterol als mitocondris pot causar cirrosi

<p>True (A)</p> Signup and view all the answers

La cardiolipina és un fosfolípid que es troba en cap altre lloc de la cèl·lula

<p>False (B)</p> Signup and view all the answers

L'espai intermembrana és químicament semblant al citosol a causa de la permeabilitat de la membrana mitocondrial externa

<p>False (B)</p> Signup and view all the answers

La membrana mitocondrial interna conté més proteïnes que lípids

<p>False (B)</p> Signup and view all the answers

L'increment de colesterol als mitocondris pot causar cirrosi

<p>False (B)</p> Signup and view all the answers

Flashcards

Is the inner mitochondrial membrane permeable?

The inner mitochondrial membrane is highly selective and contains specific transport proteins, not porins.

Where is cardiolipin found?

Cardiolipin is a unique phospholipid primarily found in the inner mitochondrial membrane, not other parts of the cell.

Where are the electron transport chain enzymes located?

The inner mitochondrial membrane contains most of the enzymes involved in the electron transport chain and ATP synthesis.

Can high cholesterol levels in mitochondria cause cirrhosis?

Increased cholesterol levels in mitochondria can contribute to liver damage and fibrosis, leading to cirrhosis.

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Which mitochondrial membrane has a higher protein-to-lipid ratio?

The inner mitochondrial membrane has a higher protein-to-lipid ratio compared to the outer membrane.

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Is cardiolipin found in other parts of the cell?

Cardiolipin is a unique phospholipid primarily found in the inner mitochondrial membrane, not other parts of the cell.

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Is the outer mitochondrial membrane permeable?

The outer mitochondrial membrane is highly permeable due to the presence of porins, allowing free passage of small molecules.

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Can high cholesterol levels in mitochondria damage the liver?

Increased cholesterol levels in mitochondria can contribute to liver damage and fibrosis, leading to cirrhosis.

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Is cardiolipin found in any other membrane?

Cardiolipin is a unique phospholipid primarily found in the inner mitochondrial membrane, not other parts of the cell.

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Is the intermembrane space similar to the cytosol?

The outer mitochondrial membrane is highly permeable to small molecules, making the intermembrane space similar in composition to the cytosol.

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What is the protein-to-lipid ratio in the inner mitochondrial membrane?

The inner mitochondrial membrane is highly enriched with proteins compared to lipids, due to its crucial role in energy production.

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Does increased cholesterol in mitochondria cause cirrhosis directly?

Increased cholesterol levels in mitochondria can cause a build-up of fat in the liver, but not directly cause cirrhosis.

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