Unit 6.1 Enzymes from tb

Question 1

what are catalysts

Answer 1

substances that speed up the rate of a chemical rxn

Question 2

what are enzymes

Answer 2

biological catalysts that speed up metabolic rxns that occur in body

Question 3

what shapes are most enzymes

Answer 3

globular proteins

Question 4

name an example that highlights enzyme specificity

Answer 4

high specificity in rxns that they catalyse and their choice of reagents.can distinguish btwn stereoisomers of a compound

Question 5

what does carbonic anhydrase cataylse

Answer 5

CO₂ + H₂O —> H₂CO₃

Question 6

compare haber bosch vs nitrgenase

Answer 6

nitrgenase: N₂ + 8H⁺+ 8e^- +16 ATP –> 2NH₃ + 16 ADP + 16P_i at 20C, no 0₂ present and 100% yield

haber bosch N₂ (g) + 3H₂ —> 2NH₃ 20% yield 450C