NU 110 Exam 3 Questions with Correct
Answers 2026 Graded A+
Function of Digestive System
Ingest
digest
absorb
excrete
Mouth
Ingestion
Saliva
lubricates food
breaks down carbs with the enzyme salivary amylase
Simple Carbs
Mono
- glucose
- frutose
- maltose
Di
- Lactose
- sucrose
Complex Carbs
Poly
- Starches
- Fiber
Tongue
swallows/deglutiton
Pharnyx
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Esophagus
tube that carries food to stomach
moves by perstalsis
LES
you have to go through the LES to get into the stomach
Stomach function
digestion of protiens
Contains:
- pepsin(enzyme)
- Hcl acid
Chyme
pepsin + Hcl + partially digested foods
Essential amino acids
have to eat, body does NOT make them
Nonessential amino acids
The body manufactures these
Stomach structures
1. Fundus
2. Body (rugae-folds)
3. Pylorus
Gastrin
hormone secreted in the stomach that stimulates secretion of HCl and increases
gastric motility
Pyloric Sphincter
Exit of the stomach
Small intestine function
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