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role of enzymes in biochemical pathways
enzymes are catalysts which speed up the rate of reaction by lowering the activation energy required for chemical reactions
enzymes in photosynthesis
water oxidising enzyme
ATP synthase
Rubisco
enzymes in cellular respiration
phosphofructokinase (PFK)
dehydrogenase enzymes
coenzymes
an organic molecule that acts with an enzyme to alter the rate of reaction
role of coenzymes
facilitating and enhancing enzymes’ catalytic activity by cycling as loaded or unloaded forms moving energy, protons and electrons between reactions in the cell
cofactors
a non-protein molecule or ion that is essential for the normal functioning of some enzymes, includes prosthetic groups and coenzymes
loaded
a form of coenzymes that can act as electron donors, high energy
unloaded
a form of coenzymes that can act as electron acceptors, low energy
