Nutrition 1020 Exam 3 Weber State with verified solutions 2024
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Course
Nutrition 1020
Institution
Nutrition 1020
Mechanical digestion
The breaking down of big food parts into smaller ones, involving muscles and nerves. Chewing(mastication)
Chemical digestion
The breaking down of big food parts into smaller ones, involving acid, enzymes, and hormones. Saliva and amylase(breaks down carbs).
Pr...
Nutrition 1020 Exam 3 Weber
State with verified solutions
2024
Mechanical digestion - answer The breaking down of big food parts
into smaller ones, involving muscles and nerves.
Chewing(mastication)
Chemical digestion - answer The breaking down of big food parts
into smaller ones, involving acid, enzymes, and hormones. Saliva
and amylase(breaks down carbs).
What is an Enzyme? - answer Protein that catalyze metabolic
reactions, and are necessary for most biochemical reactions to
occur.
Examples of enzymes - answer amylase:carbohydrates
protease:proteins
lipase: Lipids/Fats
What is a Hormone? - answer Chemicals produced by cells, and
secreted, then affect the behavior of cells at distal sites in the body.
Examples of hormones and purpose? - answer Secretin: released
from duodenal cells and sends signals to the pancreas to secrete
digestive enzymes to the stomach to produce pepsin, a protease
enzyme, and to the liver to produce bile.
Cholecystokinin: released form duodenal cells and sends signals to
the pancreas to secrete digestive enzymes to the gallbladder to
release bile.
, Peristalsis - answer a muscular wave action that occurs throughout
the intestinal tract.
Stomach - answer muscular organ and storage reservoir. It
mechanically digests food by mixing and churning. Chemically
digests food with acid and some enzymes(pepsin). The food then
becomes chyme
Small Intestine Order - answer Duodenum
Jejunum
Ileum
The 3 accessory Organs and functions - answer Liver: makes bile
Gallbladder: stores bile
Pancreas: Makes enzymes, and makes sodium bicarbonate to
neutralize stomach acid
Function of Bile - answer Emulsifier:brings the fat to the enzymes
Passive(simple) Diffusion(transport) - answer products pass freely
across membrane, no energy
Facilitated Diffusion(transport) - answer water soluble vitamins
diffuse across membrane using a specific proteins, needs a protein
but no energy
Active Transport - answer glucose and amino acids move across
membrane against a concentration gradient using a specific protein,
and energy.
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