NUTR 250 UNL EXAM | QUESTIONS
AND VERIFIED ANSWERS | WITH
COMPLETE SOLUTIONS
What are the four MACRO nutrients? - Carbohydrates
protein
water
lipids
What are the MICRO nutrients? - Vitamins and minerals
Energy sources include: - protein
lipids
carbohydrates
alcohol
How many kcals of energy does protein produce - 4 kcals/gram
How many kcals of energy do lipids produce? - 9 kcals/ gram
How many kcals of energy do carbs produce? - 4 kcals/gram
,How many kcals of energy does alcohol produce? - 7 kcals/gram
GI tract is sometimes called the: - alimentary canal
Major parts of the digestive system include: - mouth, esophagus, stomach, small
intestine, large intestine, rectum, anus
Cells that line the digestive tract - epithelial cells
Villi - fingerlike projections in the small intestine (circular folds) that increase
surface area
Alimentary canal consists of what four parts? - Mucosa, submucosa, muscle, and
serosa
lower esophageal sphincter - Prevent backflow stomach contents → Esophagus
Pyloric sphincter - Stomach → small intestine
ileocecal sphincter - large intestine → small intestine
Bolus - Anything that goes through the GI tract that begins in the mouth
Saliva - lysozyme and amylase
used for lubrication
, Swallowing process - 1. bolus is pushed against palate
2. moves to pharynx
3. Pushed down esophagus
Stomach functions - 1. Mix food
2. Reservoir
3. addition of gastric juice
Chyme is - Gastric (digestive juice)
Parietal cells release: - Hydrochloric acid (HCL) and the intrinsic factor
Pepsinogen - Inactive form of protein digesting enzyme
Pepsin - -Active form of pepsinogen
-pepsin and HCL combined
Gastrin - -hormone controlling HCL and pepsinogen release
-released in stomach when food reaches stomach
Small intestine is composed of the - - Duodenum
- Jejunum
- Ileum
AND VERIFIED ANSWERS | WITH
COMPLETE SOLUTIONS
What are the four MACRO nutrients? - Carbohydrates
protein
water
lipids
What are the MICRO nutrients? - Vitamins and minerals
Energy sources include: - protein
lipids
carbohydrates
alcohol
How many kcals of energy does protein produce - 4 kcals/gram
How many kcals of energy do lipids produce? - 9 kcals/ gram
How many kcals of energy do carbs produce? - 4 kcals/gram
,How many kcals of energy does alcohol produce? - 7 kcals/gram
GI tract is sometimes called the: - alimentary canal
Major parts of the digestive system include: - mouth, esophagus, stomach, small
intestine, large intestine, rectum, anus
Cells that line the digestive tract - epithelial cells
Villi - fingerlike projections in the small intestine (circular folds) that increase
surface area
Alimentary canal consists of what four parts? - Mucosa, submucosa, muscle, and
serosa
lower esophageal sphincter - Prevent backflow stomach contents → Esophagus
Pyloric sphincter - Stomach → small intestine
ileocecal sphincter - large intestine → small intestine
Bolus - Anything that goes through the GI tract that begins in the mouth
Saliva - lysozyme and amylase
used for lubrication
, Swallowing process - 1. bolus is pushed against palate
2. moves to pharynx
3. Pushed down esophagus
Stomach functions - 1. Mix food
2. Reservoir
3. addition of gastric juice
Chyme is - Gastric (digestive juice)
Parietal cells release: - Hydrochloric acid (HCL) and the intrinsic factor
Pepsinogen - Inactive form of protein digesting enzyme
Pepsin - -Active form of pepsinogen
-pepsin and HCL combined
Gastrin - -hormone controlling HCL and pepsinogen release
-released in stomach when food reaches stomach
Small intestine is composed of the - - Duodenum
- Jejunum
- Ileum
