Respiration Self-Study Practice Quiz

In aerobic cellular respiration, ATP synthase is located:

• in the cytosol

• in the intermembrane space

• in the mitochondrial matrix

• in the mitochondrial inner membrane

• in the mitochondrial outer membrane

The citric acid cycle is located:

• in the cytosol

• in the intermembrane space

• in the mitochondrial matrix

• in the mitochondrial inner membrane

• in the mitochondrial outer membrane

The respiratory electron transport chain is located:

• in the cytosol

• in the intermembrane space

• in the mitochondrial matrix

• in the mitochondrial inner membrane

• in the mitochondrial outer membrane

In aerobic cellular respiration, the A[H*] is located:

• across the mitochondrial inner membrane

• across the mitochondrial outer membrane

• across both mitochondrial membranes

• across the membrane of the endoplasmic reticulum

• across the plasma membrane

Glycolysis converts the chemical potential energy of glucose into:

• the chemical potential energy of a glucose uniport

• the chemical potential energy of citric acid, ATP and NADH

• the chemical potential energy of lactate or ethanol, and NADH and ATP

• the chemical potential energy of CO₂

• the chemical potential energy of pyruvate, ATP and NADH

Aerobic cellular respiration:

• is composed of glycolysis and lactate dehydrogenase

• is composed of glycolysis, the citric acid cycle, the respiratory electron transport chain and ATP synthase

• is the O2-dependent transport of glucose across a plasma membrane

• is the ATP-dependent transport of glucose across a plasma membrane

• is the NADH-dependent transport of glucose across a plasma membrane

Substrate-level phosphorylation:

• Is the direct transfer of a phosphate group to ADP (generating ATP), without ATP synthase

• is the transfer of phosphate to ADP (generating ATP) using ATP synthase

• is the pumping of protons (H*) against a delta[H*]

• is the movement of protons (H+) down a delta[H*]

• is the regeneration of NADH in glycolysis and the citric acid cycle

Oxidative phosphorylation:

• is the direct transfer of a phosphate group to ADP (generating ATP), without ATP synthase

• is the combination of glycolysis and the citric acid cycle

• is the combination of the respiratory electron transport chain and ATP synthase

• is the regeneration of NAD* via lactate dehydrogenase

• is the production of ethanol in the absence of O₂

The respiratory A[H*] is produced by:

• glycolysis

• the citric acid cycle

• ATP synthase activity

• activity of the respiratory electron transport chain

• magic

Respiratory ATP synthase catalyzes:

• ATP + nH* (ims) → ADP + P¡ + nH* (matrix)

• ADP + Pi + nH* (ims) → ATP + H₂O + nH* (matrix)

• proton pumping against A[H*]

• PEP + ADP → pyruvate + ATP

• pyruvate + NADH → lactate + NAD+