Which Best Describe the Structure of Complex II

question 51

Multiple Choice

Which best describe the structure of complex II?

• A) An L-shaped structure that spans the membrane and partially extends into the mitochondrial matrix.
• B) A structure firmly anchored to the membrane by many a-helices that span the lipid-bilayer.
• C) Three identical multisubunit enzymes that associate to form a mushroom-shaped structure.
• D) Has a core structure of three conserved subunits, one of which forms a b-barrel on the exterior surface of the membrane.

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