Exam 4: enzymes and proteins

Question 1

Fructose

Answer 1

made in the seminal vessicle, sugar molecule that gives energy to spermatazoa for mobility, 70% of semen

Question 2

Serine protease

Answer 2

enzyme in prostate that makes prostate-specific antigen (PSA)

Question 3

prostate-specific antigen (PSA)

Answer 3

protein made in the prostate; it liquifies semen

Question 4

Androgen-binding protein

Answer 4

protein made by setoli cells, prevents androgens from leaving the seminiferous tubule

Question 5

Activin

Answer 5

protein made by sertoli cells, promotes Ad division

Question 6

Inhibin

Answer 6

protein madde by sertoli cells. stops Ad division

Question 7

neurophysin

Answer 7

transport protein for ADH + oxytocin, ships hormones from nucleus in hypothalamus through the hypothalamo-hyposeal tract into axon terminals/herring bodies in neurohysin (pars nervosa)

Question 8

Glucocortoroids

Answer 8

protein made in the adrenal cortex, zona fasiculata, after stimulation