Oxidative Phosphorylation

How does the electron transport chain facilitate the synthesis of ATP?

• The ATP is synthesized by the ATP synthase found in the electron transport chain

• The ATP synthesized at the end of the electron transport chain

• The ATP is synthesized by the protons combing with the oxygen in the electron transport chain

• The ATP is synthesized by the protons flowing down their concentration gradient after being pumped out by the ETC

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Describe what would happen if the mitochondrial inner membrane was ruptured.

• ATP synthesis would be inhibited

• ATP synthesis would be promoted

• The ETC would decrease in activity

• The ETC would increase in activity

Tags

NGSS.HS-LS1-7

What are the two parts of oxidative phosphorylation?

• Krebs Cycle

• Glycolysis

• Chemiosmosis

• ETC

Tags

NGSS.HS-LS1-7

How many ATP molecules are produced from one molecule of glucose after the electron transport chain?

• About 2-4 ATP

• About 18-24 ATP

• About 30-38 ATP

• About 100 ATP

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Where is the majority of ATP made in a eukaryotic cell?

Answer explanation

Correct! Aerobic respiration is more efficient than most anaerobic respiration pathways. The majority of ATP produces during aerobic respiration is synthesized by oxidative phosphorylation inside the mitochondria of eukaryotic cells.

Tags

NGSS.HS-LS1-7

Mark the position(s) where H₂O is produced.

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

What role does NADH play in cellular respiration?

• It acts as a primary energy source.

• It serves as an electron carrier.

• It functions as the final electron acceptor.

• It is used to directly synthesize ATP.

Tags

NGSS.HS-LS1-7

Where does oxidative phosphorylation take place?

• Matrix

• Cristae

• Chloroplast

• Cytosol

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Which part of the cell will have the highest pH due to cellular respiration?

• Intermembrane space

• Matrix

• Cytosol

• Thylakoid

Which direction are protons pumped during the electron transport chain?

• Into the Thylakoid

• Into the intermembrane space

• Into the cytosol

• Into the mitochondrial matrix

Tags

NGSS.HS-LS1-7