12 Questions
What is involved in the mixing of mtDNA copies for cells with heteroplasmic mitochondria?
Fusion and cytoplasmic proteins
How are most proteins synthesized for import into the mitochondrion?
In the cytoplasm and imported with N-terminal sequence as import signal
What is involved in the energy-dependent process of transporting peptides into the mitochondrion?
Chaperones and formation of tertiary structure
When does biogenesis increase?
During G1/S and upon upstream signaling associated with increased energy demands
What is involved in complementing (repairing) mitochondrial defects if good mtDNA genes are available?
Fusion and cytoplasmic proteins
What are involved in the transport of peptides through the outer and inner mitochondrial membranes?
Outer membrane and inner membrane transporters (TOM and TIM)
What is the primary function of mitochondria in energy metabolism?
Synthesis of ATP through oxidative phosphorylation
Which process is NOT a function of mitochondria?
Protein synthesis
What is a common morphology of mitochondria in metabolically active cells?
Reticular networks formed by fusion
What is the primary role of fission in mitochondrial dynamics?
Increasing mitochondrial number for cell division
Which process is NOT directly associated with mitochondrial function?
Photosynthesis
What is a consequence of excessive mitochondrial fission?
Loss of nucleoid from mitochondria
Test your knowledge of mitochondrial function and biogenesis with this quiz. Explore the role of mitochondria in energy metabolism, oxidative phosphorylation, fatty acid oxidation, thermogenesis, and various metabolic processes. See how well you understand the integration of intermediary metabolism and other essential functions of mitochondria within the cell.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
