U5a Quizizz What Are Mitochondria and How the Produce Energy

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What are mitochondria often referred to as?

• Protein factories

• Cellular powerhouses

• Energy absorbers

• DNA storages

What is the function of the outer membrane of mitochondria?

• It synthesizes proteins

• It contains the electron transport chain

• It is highly impermeable

• It contains protein channels called porins

What structures increase the surface area of the inner membrane of mitochondria?

• Cristae

• Matrix

• Porins

• Ribosomes

What does the matrix of mitochondria contain?

• The electron transport chain

• Enzymes for the citric acid cycle, mitochondrial DNA, ribosomes, and tRNA

• Only mitochondrial DNA

• Protein channels called porins

What is the role of cardiolipin in the inner mitochondrial membrane?

• It acts as a transporter for metabolites

• It facilitates the activities of proteins involved in ATP synthesis

• It synthesizes mitochondrial DNA

• It increases the permeability of the membrane

Which of the following is NOT a function of mitochondria?

• Photosynthesis

• DNA replication

• Protein synthesis

• Lipid metabolism

How are mitochondria inherited?

• Bilaterally

• Maternally

• Paternally

• Equally from both parents

What is the significance of the mitochondrial DNA being circular?

• It allows for faster replication

• It encodes a small number of genes essential for mitochondrial function

• It is not significant

• It encodes for all proteins needed by the cell

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