Enzymes

Question 1

Phosphofructokinase (PFK)

Answer 1

Glycolytic
phosphorylates fructose 6-phosphate in glycolysis
*controls rate of glycolysis

Question 2

Citrate Synthase (CS)

Answer 2

oxidative
catalyzes the first reaction of the citric acid cycle (Krebs Cycle or the tricarboxylic acid [TCA] cycle): the condensation of acetyl-CoA and oxaloacetate to form citrate

Question 3

Malate dehydrogenase (MDH)

Answer 3

oxidative

reversibly catalyzes the oxidation of malate to oxaloacetate using the reduction of NAD+ to NADH

Question 4

Succinate dehydrogenase (SDH)

Answer 4

oxidative
used in citric acid cycles and ECT
catalyzes the conversion of succinate to fumarate

Question 5

Creatine Kinase (CK)

Answer 5

ATP + PCr
Regulates the concentration of ATP.
Used in a reversible reaction to convert creatine to phosphocreatine and ADP.

Question 6

Myokinase (MK)

Answer 6

ATP + PCr

catalyzes the interconversion of adenine nucleotides

Question 7

Phosphorylase (PHOS)

Answer 7

Glycolytic
- rate limiting enzyme of glycolyis
converts glycogen into glucose-6-phosphate

Question 8

Lactate Dehydrogenase (LDH)

Answer 8

Glycolytic
Converts pyruvate to lactate
*allows glycolysis to continue at a greater rate for longer

Question 9

Myosin ATPase

Answer 9

ATP + PCr

Catalyses ATP + H2O ADP + phosphate. ATP hydrolysis provides energy for actomyosin contraction.