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Kaplan Qbank USMLE



Author9 Posts
  #1

What are the other functions of mitohondria beside producing ATP and in which cases?

  #2

Mitochondria carry out a lot of enzymatic processes....

Like
Citric Acid Cycle
Beta Oxidation
Ketogenesis
cholestrol hydrolysis
part of porphyrin synthesis
part of urea synthesis

and may others

  #3

Welcome back Delusional.

  #4

what does it mean?
what is it?
when was it first used?

  #5

Inner Membrane--impermeable to most ions. uses specific transport
carriers to go from cytoplasm to matrix. ETC assembly,ATP
synthesizing sructure protrudes into matrix. NADH dehy.
oxidizing reduction of repiratory chain.

Cristae---------foldings of inner membrane that increase surface area.

Matrix----------Site of Kreb enzymes,mtDNA,mtRNA,mito.ribosomes,
Oxidation of fatty acids , amino acids and pyruvate,
1st two steps of urea cycle.( citrilline can leave matrix
Ornithine can enter it) 1st step and last 4 steps in
Heme synthesis occur here. NAD, FAD,ADP +Pi

Intermembrane Space--Contains enzymes that use ATP that passes out of
matrix to phosphorylate other nucleotides

Outermembrane--Permeable to most ions.
Hope this helps. I welcome comments. :shock:

___________________
Smell the coffee! "Is That an Osler move??"

  #6

Good job Mjl1717. :wink:

___________________
deep breathing...

  #7

dont forget succinate dehydrogenase ......... smiling face (recall where it is)

  #8

succinate dehydrogenase is present in the inner mitochondrial membrane. it is responsible for the conversion of succinate into fumrate giving off FADH2.

  #9

right.







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