1) Catalyze means - a) to speed up b) to slow down c) to destroy d) to organize 2) Which structure represents the enzyme? a) A b) B c) C d) D 3) Which structure represents the substrate? a) A b) B c) C d) D 4) Using the picture, determine which molecules the enzyme would most likely affect in a reaction? a) B and D b) Only C c) Only A d) Molecules A and C 5) Complementary means -  a) when two things go together well b) when two things do not fit c) when two things break d) when something is not working well 6) Enzymes ______________ the speed of chemical reactions in cells a) decrease b) increase c) slow down d) do not change 7) Enzymes ________________ chemical reactions in cells a) speed up b) slow down c) do not impact d) stop 8) The part of the enzyme where the substrate binds a) substrate zone b) substrate site c) active site d) catalyst 9) The reactant molecule that an enzyme works on a) active site b) substrate c) catalyst d) nucleus 10) A substance that speeds up a chemical reaction without being changed a) catalyst b) active site c) nucleus d) substrate e) carbohydrate 11) A biological catalyst (usually a protein) a) catalyst b) active site c) nucleus d) substrate e) carbohydrate f) enzyme 12) Which of the following represents an enzyme working. a) b) 13) If the enzyme temperature or pH changes greatly, what can happen? a) enzyme works faster b) enzyme denatures (stop working) c) enzyme is not affected d) enzymes will join different substrates 14) An enzyme changes after the reaction finishes. a) True b) False 15) Enzymes decrease activation energy? a) True b) False

Enzymes Practice

per en/la
Imprimir
Incrustar

Tauler de classificació

Estil visual

Opcions

Canvia de fonament

Restaurar desada automàtica: ?