What are the  factors that influence enzyme reaction rate

What are the  factors that influence enzyme reaction rate.

What are (the) 4:

  1. a)  Key functions of cell membranes?
  2. b)  Types of receptors used in cell-signaling
  3. c)  Factors that influence enzyme reaction rate.
  4. d)  Functional classes of proteins. (Note: Not primary, secondary, etc)
  5. e)  Factors that influence the rate of diffusion of a molecule across a membrane.

What are the  factors that influence enzyme reaction rate