Aerobic metabolism

What is the approximate size of a mitochondrion?

• ~0.1-1um

• ~1-10um

• ~10-100um

• ~100-1000um

Where is the DNA located within the mitochondrion?

• In the intermembrane space

• In the matrix

• On the cristae

• On the outer membrane

What is the function of the cristae in mitochondria?

• They contain ribosomes for protein synthesis.

• They increase the surface area for ATP synthesis.

• They store the genetic material of the mitochondrion.

• They protect the mitochondrion from damage.

What are the ATP synthase particles involved in?

• DNA replication

• Protein synthesis

• ATP production

• Lipid storage

Which complex in the inner mitochondrial membrane is responsible for the conversion of succinate to fumarate?

• Complex I

• Complex II

• Complex III

• Complex IV

What is the primary function of Complex V in the inner mitochondrial membrane?

• Oxidation of cytochrome c

• Synthesis of ATP

• Reduction of oxygen to water

• Conversion of NADH to NAD+

How many subunits does Complex I have in the inner mitochondrial membrane?

• 4 subunits

• 11 subunits

• 47 subunits

• 17 subunits

Which molecule is not a direct product of the reactions occurring in Complex IV?

• Water (H2O)

• ATP

• Cytochrome c oxidase

• Reduced cytochrome c (cyt c)

What is the result of mitochondrial fusion?

• Decrease in mitochondrial mass

• Increase in mitochondrial number

• Increase in mitochondrial mass

• Degradation of mitochondria

What process leads to an increase in mitochondrial number?

• Fusion

• Fission

• Biogenesis

• Mitophagy