AP biology- chemiosmosis/ETC

List, in order, the THREE major stages of cellular respiration.

Glycolysis, Krebs cycle, ETC

where is a pyruvate oxidized to acetyl CoA

in the matrix of the mitochondria

While the ETC is functioning, the pH will be the lowest in which location of the mitochondrion?

Intermembrane space

The components of the ETC are located within which membrane of the mitochondrion?

Inner mito. membrane

The active transport process in ETC require energy, where does it come from?

Electrons being “pumped” throughout the ETC

Why is it important that the inner mitochondrial membrane is impermeable to Hydrogen ions (protons)

It maintains the proton gradient across the inner mito. membrane

Hydrogen ions will flow through the ATP synthase from the to the

1. inter membrane space

2. matrix

the energy to form ATP most directly comes from what source

proton gradient

In the oxidation of one glucose, how many water molecules (maximum) are actually formed as waste products at the end of cellular respiration?

12 H2O

What is the final, most electronegative electron acceptor in the ETC? where does it come from?

Oxygen; from breathing

As electrons move “down” the ETC, they loose energy this is because the acceptor is more than its proceeding neighbor

electronegative

Why is there many redox reactions occuring along the ETC?

ensure gradual energy release, efficient electron transfer, and proton pumping to create a proton gradient for ATP synthesis.

Water and ATP are formed at the end of the ETC process in which specific location?

Matrix of the mitochondrion

What is the benefit of having a folded inner mitochondrial membrane

increases surface area, boosting the efficiency of ATP production by accommodating more ETC proteins and ATP synthase.