F1. Lactose.

Question 1

lactase deficiency?

Answer 1

Lactose Intolerance.

Question 2

3 types of lactose intolerance?

Answer 2

1. premature infants [transient/ congenital deficiency].
2. secondary surgery [because part of small intestines are removed].
3. mucosal cell damage.

Question 3

6 symptoms of lactose intolerance?

Answer 3

1. gurgling sounds.
2. loose stools.
3. diarrhea.
4. bloating.
5. gas.
6. lower belly pain or cramps.