Question

Q20). The chemiosmotic model of ATP synthesis is based on each of the following lines of experimental evidence EXCEPT...

A) Artificial proton gradients established by addition of acid can drive ATP synthesis in the absence of electron transport.

B) Oxidative phosphorylation does not require a membrane-enclosed compartment.

C) The proton gradient established by electron transport has enough energy to drive ATP synthesis.

D) Electron transport causes protons to be pumped out of the mitochondrial matrix.

Answer 1

The chemiosmotic model of ATP synthesis is based on several lines of experimental evidence, and one of the options provided as an answer is incorrect.

Step-by-step explanation:

The chemiosmotic model of ATP synthesis is based on several lines of experimental evidence. Let's go through each option to determine which one is not included in the evidence:

1. Artificial proton gradients established by addition of acid can drive ATP synthesis in the absence of electron transport.
2. Oxidative phosphorylation does not require a membrane-enclosed compartment.
3. The proton gradient established by electron transport has enough energy to drive ATP synthesis.
4. Electron transport causes protons to be pumped out of the mitochondrial matrix.

Based on these options, it can be concluded that the chemiosmotic model of ATP synthesis is NOT based on B) Oxidative phosphorylation does not require a membrane-enclosed compartment.