Mitochondria Flashcards
Understand the features, functions and structure of mitochondria
Where are mitochondria located
cytosol
What is the function of mitochondria
make energy, role in apoptosis
TRUE or FALSE pyruvate enters mitochondria
TRUE
Where does the krebs cycle occur
mitochondria
Describe the structure of mitochondria
Double membrane, inner matrix with enzymes, inner membrane has cristae, highly compartmentalised
What does the mitochondrial matrix contain
enzymes of krebs cycle, ribosomes, mitochondrial DNA
describe the evolution of mitochondria
invagination of aerobic bacteria into an anaerobic cell,
Describe the structure of mitochondria from its evolution
retained prokaryotic membrane, outer membrane is similar to cytosolic membrane, carries own mitochondrial DNA
TRUE or FALSE -mitochondria are synthesised de novo
FALSE
how is mitochondrial DNA inherited
mother
Why is mitochondrial DNA inherited from the mother
oocytes contain more mitochondria than sperm, most sperm mitochondria dont transfer, paternal mitochondria are recognised as foreign
TRUE or FALSE, rates of mutation are higher in mitochondrial DNA than normal DNA
TRUE
Why is mitochondrial DNA mutation rate higher
no proof reading
What does mitochondrial DNA code for
rRNAs, tRNAs and some mitochondrial proteins
Where do ribosomes come from in mitochondria
nuclear genome and are transported in
