mitochondria Flashcards
explain the structure of mitochondria?
hey are sausage shaped double membrane organelle.
which stain used to observe mitochondria ?
they are stained by a vital stain janus green
what is the size of Mitochonria ?
diameter: 0.2-1.0micrometer
length: 1.0-4.1micro meter
explain the inner membrane of mitochondira?
the inner membrane has a number of infolings call the cristea.its is selectively permeable and has 80% protein and 20% lipids and is rich in cardiolipids.
explain the outer membrane of mitochondira?
the outer membrane is smooth and forms a continuous limiting boundary and is made up of 40%lipid and 60% proteins.
what lies in the peri-mitochondrial space?
outer compartment or intermembrane space.
function of cristae?
increasing the surface area for enzyme action
what does the matrix contain?
matrix contains DsDNA molecule with high G=C(guanine-cytosine) content, few rRNA molecules , 70s ribosomes and other compartments required for the synthesis of protein.it also contains tricarboxylic acid for TCA cycle
how does the mitochondria divide?
fission
where is the enzyme and electron carriers required for ATP formation present
inner membrane
other names for elementary paticles
particles of Fernandez and Moran or f1 particles or Oxysomes or f0-f1 particle
where are the f1 particles present?
they are studded in the inner membrane
how is each oxysome differentiated and what is their function?
they are differentiated into head piece ,stalk and base.the head peice contains enzyme ATP synthetase which brings about oxidative phosphorylation and release of ATP
which and enzyme causes oxidative phosphorylation?
ATP synthetase
what is oxidative phosphorylation?
ADP + P = (in the presence of O2)= ATP
