F1. GALACTOSE & its metabolism.

Question 1

UDP-galactose means?

Answer 1

Uridine Diphosphate Galactose.

Question 2

UDP-galactose is used in the synthesis of?

Answer 2

1. glycoproteins.
2. glycolipids.
3. proteoglycans.

Question 3

UDP-galactose reacts with ____ in the mammary gland to form ____.

Answer 3

1. glucose
2. milk sugar lactose

Question 4

1. type of sugar resulting from the metabolism of galactose.
2. by the enzyme?

Answer 4

1. GALACTITOL.
2. GALACTOKINASE.

Question 5

Disorders of Galactose Metabolism:

1. autosomal recessive disorder
2. caused by a deficiency of?

Answer 5

1. Classic Galactosemia.
2. galactose-1-phosphate uridyl-transferase.

Question 6

Disorders of Galactose Metabolism:

1. benign autosomal recessive disorder.
2. caused by a deficiency of?

• excessive accumulation of galactitol, primarily in the eyes causing cataracts.
• thus, it is required to examine the RBC’s of newborns to check the enzyme.

Answer 6

1. Galactokinase Deficiency.
2. Galactokinase.