Cell Structure and Function

Which part of the mitochondrion contains mitochondrial DNA?

• Outer membrane
• Intermembrane space
• Cristae
• Matrix

How do mitochondria replicate within a eukaryotic cell?

• By mitosis
• By meiosis
• By budding
• By fission

Where are the enzymes for the Krebs cycle located?

• On the outer membrane
• In the intermembrane space
• On the cristae
• In the matrix

Which of the following statements about mitochondrial ribosomes is correct?

• They are of the 80S type
• They are composed only of rRNA
• They cannot synthesize proteins
• They are of the 70S type

What is the main role of cristae in mitochondria?

• Separate DNA strands
• Store extra ribosomes
• Regulate ion flow
• Increase surface area for ATP production