Question

which of the following does not affect an enzyme?
water
heat
ph
chemicals

Explanation:

Enzymes are proteins. Heat can denature them by changing their structure. pH can affect the ionic - bonding and hydrogen - bonding within the enzyme, altering its shape. Chemicals like inhibitors can bind to the enzyme and change its activity. Water is a common solvent and is generally not a factor that directly affects the enzyme's structure or activity in a non - solvent related way.

Answer:

water