respiration Flashcards
define respiration
a series of controlled reactions
what is used for respiration
ATP
where does respiration occur
in the mitochondria
why does respiration occur in the mitochondria
have their own DNA and Ribosmomes to manifacture their own respiratory enzymes
isolated enviroment
has cristea - increase surface area
give features of the mitochondria
a space between the inner and outer membrane
outer membrane contains porins that allow ions to move through
inner memrane space called matrix contains DNA RNA and where the krebs cycle occurs
what does the matrix contain
DNA and RNA
70s ribsomes
what reaction occurs in the mitochondria
- link reaction
- krebs cycle
what are the four stages of respiration
glycolisis
link reaction
krebs cycle
electron transport chain
where does glycolisis occur
in the cytoplasm of the cell
where does the link reaction occur
matrix
here does the kreb cycle occur
matrix
here does electron transfer chain occur
utalises protiens found in the membrane of the crista
why is ATP a good energy source
- it provides instant energy as easily hydrolysed
- rapid resynthesis
what is phosphorilation
adding a phosphate molecule
how does phospyrilation occour in respiration
molecule e.g glucose in glycolysis is phosphorilised via addition of atp, wich is hydrolised into atp+pi providing an additional phosphate molecule
