Articles > Substrate definition – quiz Substrate definition – quiz Quiz Choose the best answer. 1. A substrate refers to the substratum where organisms live or attach to. True False None 2. In biochemistry, a substrate is a substance that is acted upon by an enzyme. True False None 3. A chemical bond forms between the active site of the enzyme and the substrate, forming an enzyme-substrate complex True False None 4. Carbohydrate is an example of a biochemical substrate. True False None 5. The phenomenon via which the enzymes activate the specified substrates is called substrate specificity. True False None Send Your Results (Optional) Your Name To Email Time's up