Question

The chemiosmotic coupling hypothesis of oxidative
phosphorylation proposes that adenosine
triphosphate (ATP) is formed because
(a) high energy bonds are formed in mitochondrial
proteins
(b) ADP is pumped out of the matrix into the
intermembrane space
(c) a proton gradient forms across the inner
membrane
(d) there is a change in the permeability of the
inner mitochondrial membrane toward
adenosine diphosphate (ADP)

Answer 1

Answer:

A

Explanation:

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Answer 2

The chemiosmotic coupling hypothesis of an oxidative phosphorylation proposes that the adenosine  triphosphate (ATP) is formed because of (c) a proton gradient forms across the inner  membrane.

• With the assistance of an electron transporter located in inner mitochondrial membrane, the cycle of oxidative phosphorylation takes place in mitochondria.
• In the mitochondrial electron transport system, the movement of electrons is combined with the outflow of protons.
• In the peri-mitochondrial vacuum, the accumulation of protons creates both an electro- chemical gradient and a chemical gradient.
• The accumulated protons later flow through the electro-chemical gradient through the enzyme complex F 0-F 1 ATP synthase present on inner mitochondrial membrane when ATP is synthesized