Oxidative Phosphorylation

Hydrogen ions are pumped from the __________ to the ___________.

• matrix; intermembrane space

• intermembrane space; matrix

• matrix; cytoplasm

• intermembrane; cytoplasm

The final electron acceptor in electron transport chain is

• NAD⁺

• FAD

• Oxygen

• Water

Tags

NGSS.HS-LS1-7

Cyanide is a metabolic poison that stops the electron transport chain by directly blocking the actions of

• NAD⁺

• NADH dehyrogenase

• ATP sythase

• Cytochrome oxidase

H⁺ move down their concentration gradient by ___________ back into the matrix.

• osmosis

• facilitated diffussion

• simple diffusion

• active transport

The effect of increased levels of hydrogen ions in the intermembrane space of the mitochondria is

• Increase ATP production

• Decreased levels of oxidative phosphorylation

• Increased levels of water in intermembrane space

• Decreased levels of chemiosmosis

During electron transport, protons are pumped out of the mitochondrion at each of the major sites except for

• NADH dehydrogenase

• Succinate dehydrogenase

• Cytochrome c reductase

• Cytochrome c oxidase

What doe FADH2 and NADH bring to the electron transport chain?

• Oxygen

• Water

• Electron

• ATP

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

NGSS.HS-LS2-5

ATP synthesis by ATP synthase is driven by

• H⁺ movement

• electron movement

• NADH movement

• FADH₂ movement

ATP synthase synthesis ATP and release ATP into

• innermembrane of mitochonndria

• matrix of mitochondria

• intermembrane space of mitochondria

• outermembrane of mitochondria

Which of the following is an electron donor for succinate dehydrogenase in electron transport chain?

• NAD⁺

• FADH₂

• NADH

• FAD