B4

Question 1

define enzyme

Answer 1

proteins that function as biological catalysts

Question 2

explain enzyme action [3]

Answer 2

-complementary shape of the active site to the substrate
-forms a enzyme-substrate-complex
-creates a product

Question 3

explain effects of change in temperature on enzyme activity [5]

Answer 3

-increase in kinetic energy
-frequent and energetic collisions
-enzymes are able to fit/bind with the substrates
-denatures enzyme above optimum temperature
-changes shape of the active site and disables it from binding with the substrates

Question 4

explain the effects of change in pH on enzyme activity [4]

Answer 4

-highest rate of reaction at optimum pH
-each enzyme has own unique optimum pH
-denatures enzyme above or below optimum pH
-changes shape of the active site and disables it from binding with the substrates

Question 5

do your spanish thing

Answer 5

este enero, yo fui a tailandia con mis padres. nosotros fuimos en dos aviones. uno desde kathmandu hasta bankok. uno desde bankok hasta chiang mai. nosotros hospedamos en un hotel. El hotel tenia bufe y piscina. hicimos vacaciones gastronomica y vacaciones de compras. fue divertido