Biochemistry Flashcards
What is a cofactor?
A cofactor is a small molecule that associated with an enzyme or protein to cause a reaction
Where do most coenzymes come from?
Vitamins
How thick are cell membranes?
6-10nm
What are membranes comprised of?
A lipid and a protein
What is a major role of membranes?
To act as a site of transport
What two things are required for a molecule to be permiable?
They need to be small and non-polar
What makes a molecule poorly permeable?
They’re non polar but MW>=100
What makes a molecule impermeable?
They’re polar
What does an active transport process require?
Energy
What are coenzymes?
Coenzymes are small organic molecules that associate with enzymes to facilitate biological reactions.
What role does NAD+ and NADP+ play in metabolism?
Cells use NAD and NADP to pick up or donate electrons to biological reactions
What two processes is CoASH important for?
Glycolysis and fatty acid metabolism
