Question

Where is ATP synthase located in the mitochondrion?

A. Cytosol

B. Electron transport chain

C. Outer membrane

D. Inner membrane

E. Mitochondrial matrix

Answer 1

ATP synthase is located in the inner membrane of the mitochondrion, where it plays a crucial role in the production of ATP during cellular respiration.

Step-by-step explanation:

The enzyme ATP synthase is located in the inner membrane of the mitochondrion. In eukaryotic cells, the inner membrane contains structures known as cristae, which increase surface area and house the ATP synthase that is crucial for ATP production during cellular respiration. The inner membrane facilitates the formation of a proton gradient, and ATP synthase uses this gradient to catalyze the synthesis of ATP from ADP and inorganic phosphate.

ATP synthase is a complex enzyme found in the inner mitochondrial membrane of eukaryotic cells and the plasma membrane of prokaryotic cells. It plays a crucial role in the production of adenosine triphosphate (ATP), the primary energy currency of cells.

Answer 2

In mitochondria ATP synthase is located in the inner membrane, the hydrophilic catalytic F1 portion is sticking into matrix. In a way a mitochondrion is a bacterium “swallowed” by the eukaryotic cell: then the inner mitochondrial membrane corresponds to the bacterial cell membrane.

Step-by-step explanation:

ATP synthase is an enzyme that creates the energy storage molecule adenosine triphosphate (ATP). ATP is the most commonly used "energy currency" of cells for all organisms. It is found from adenosine diphosphate (ADP) and inorganic phosphate (Pi). The overall reaction catalyzed by ATP synthase is:

ADP + Pi + 3H+out ⇌ ATP + H2O + 3H+in