Cellular Processes and Mitochondrial Function

What is an example of a spontaneous process in cells?

• DNA replication

• Phospholipid bilayer formation

• Active transport

• Protein synthesis

Which molecule is primarily used by cells to power non-spontaneous processes?

• ATP

• NADH

• Glucose

• FADH2

What is the primary function of the mitochondrion?

• DNA replication

• Protein synthesis

• ATP synthesis

• Lipid storage

What is the role of porin channels in the outer mitochondrial membrane?

• Synthesis of ATP

• Replication of mitochondrial DNA

• Diffusion of small molecules and ions

• Transport of macromolecules

Which lipid is abundant in the inner mitochondrial membrane but not in the outer membrane?

• Cholesterol

• Cardiolipin

• Phosphatidylcholine

• Sphingomyelin

What is the primary composition of the inner mitochondrial membrane?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

What is the innermost compartment of the mitochondrion called?

• Cristae

• Intermembrane space

• Cytosol

• Matrix

Which process occurs in the mitochondrial matrix?

• Glycolysis

• Citric acid cycle

• Photosynthesis

• Fermentation

What is the consistency of the intermembrane space compared to the cytosol?

• Similar

• Less viscous

• Solid

• More viscous

Which protein is specifically localized in the intermembrane space?

• ATP synthase

• Cytochrome c

• Ribosome

• DNA polymerase