Question

1- In animal mitochondria, H⁺ protons are actively pumped from ___ to ____.

a. the cytosol; the intermembrane space

b. the matrix; the intermembrane space

c. the matrix; the cytosol

d. the intermembrane space; the cytosol

e. the intermembrane space; the matrix

2- Which of the following characteristics of the human mitochondrial genome is FALSE?

a. Circular form

b. Inherited primarily from mother

c. Encodes all necessary proteins the mitochondria needs, including enzymes for transcription and translation

d. Genetically similar to bacterial genomes

e. Smaller than eukaryotic genomes

3- What are Tom and Tim complexes?

a. Protein complexes that help mitochondria fuse together or divide

b. Protein complexes that translate mitochondrial messenger RNA

c. Protein complexes that transport phospholipids from the ER to the mitochondria

d. Protein complexes that transport metabolites across the mitochondrial membranes

e. Protein complexes that facilitate transport of mitochondrial proteins from the cytosol to mitochondrial compartments

Answer 1