20. Lactose intolerance

0.0(0)
studied byStudied by 0 people
full-widthCall with Kai
GameKnowt Play
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/3

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

4 Terms

1
New cards

What does lactase do?

Splits lactose into beta glucose and galactose

2
New cards

Why is a person lactose intolerant?

They lack lactase, so lactose is not digested or absorbed -> high levels of soluble lactose remain in small intestine

3
New cards

What happens if there is lots of soluble lactose left in the small intestine?

  • Supports large population of bacteria, ferments lactose producing gas and can cause abdominal pain

  • WP becomes more negative, H2O moves into small intestine, not reabsorbed, causes diarrhea

4
New cards

How do adults relate to lactose intolerance?

They rarely produce lactase as the gene is switched off in adulthood