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10 Questions

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Mitochondria Composition and Functions

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Questions and Answers

What is the major protein component of the mitochondrion membrane?

Calmodulin, involved in calcium ion transport

Cytochrome c, a key component of the electron transport chain

Collagen, providing structural support to the membrane

Porin, which forms large aqueous channels (correct)

Where does the Krebs cycle take place in the mitochondria?

Cytosol

Matrix (correct)

Outer membrane

Inter-membrane space

What is the role of NAD+ in cellular respiration?

Accepts high energy electrons from organic molecules and transports them to the electron transport chain (correct)

Facilitates ATP synthesis directly

Generates glucose for energy production

Forms hydrogen ions for ATP production

In which region of the cell are mitochondria often found?

Regions with high ATP consumption Signup and view all the answers

What is the function of microtubules in relation to mitochondria?

They move mitochondria inside the cell Signup and view all the answers

Where do high-energy electrons used by mitochondria come from?

Electron transport chain in the inner mitochondrial membrane Signup and view all the answers

What is the process by which ATP stores energy?

Oxidative phosphorylation Signup and view all the answers

Which components are part of the electron transport chain in mitochondria?

Cytochrome c and ATP synthase Signup and view all the answers

What is the main role of the outer membrane of mitochondria?

Facilitating the entry and exit of molecules like pyruvate and ATP Signup and view all the answers

What is the role of NAD and FAD in cellular respiration?

Acting as electron carriers in the electron transport chain Signup and view all the answers