enzymes

Question 1

two ways the procedure can be modified to obtain a more accurate value for the optimum temperature of lipase activity

Answer 1

• take samples at more frequent intervals e.g every 30 seconds
• colorimeter for a less subjective and more accurate colour change

Question 2

which organelle is responsible for the synthesis of enzymes

Answer 2

ribosomes

Question 3

legahaemoglobin has similar properties to haemoglobin. Suggest two ways it improves the performance of a nitrogeneous enzyme

Answer 3

transports oxygen
removes carbon dioxide to prevent inhibition

Question 4

explain with reference to bonding why amalayse activity is low at pH4

Answer 4

ionic/hydrogen bonds are broken
high concentration of H+ ions causes the tertiary structure of A-S to be changed
substrate no longer fits
denatured

Question 5

what is the name given to any inorganic ion that increases the activity of an enzyme

Answer 5

cofactor