Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
What are nutrients needed for?
|
Energy, Building materials, and as enzymes
|
|
|
What helps move food?
|
Peristalsis & Swallowing.
|
|
|
What is digestion?
|
the process when ingested food is broken down into molecules that can pass through the wall of the GI tract and be absorbed in the blood stream & lymph.
|
|
|
What 4 processes does digestion consist of?
|
Mechanical Break down of food (chewing, churning of muscles), Solubilization, Acid breakdown, Enxymatic breakdown.
|
|
|
What does amylase break down?
|
Carbohydrates.
|
|
|
Where is amylase secreted?
|
Pancreas & Salivary Glands.
|
|
|
What breaks disaccharides down into monosaccharides?
|
Disaccharidases
|
|
|
What breaks down proteins into peptides?
|
Pepsin & Trypsin
|
|
|
What breaks down proteins into amino acids?
|
Peptidase
|
|
|
What breaks down fats into fatty acids?
|
Lipase.
|
|
|
What breaks RNA/DNA down into nucleotides?
|
Nucleases
|
|
|
What secretes disaccharidases?
|
Small Intestine.
|
|
|
What secretes trypsin?
|
Pancreas
|
|
|
What secretes petidase?
|
Small Intestine
|
|
|
What secretes lipase?
|
Pancreas.
|
|
|
What secretes nucleases
|
Pancreas.
|
|
|
What secretes pepsin?
|
Stomach.
|
|
|
Site of ingestion?
|
Oral Cavity.
|
|
|
Voluntary Controlled Muscles of the Disgestive system?
|
Teeth, Tongue, Muscles of cheek and lips.
|
|
|
3 Pairs of salivary glands?
|
Sublingual, Submanibular, Parotid.
|
|
|
What 3 types of digestive processes in the mouth?
|
Mechanical breakdown of food, solubilizatoin, Enzymatic breakdown.
|
|
|
What does the released enzymes (in the mouth) break up?
|
Amylase breaks down carbohydrates.
|
|
|
Are nutrients absorbed in the stomach?
|
No.
|
|
|
How is secretion of saliva controlled?
|
By parasympathetic autonomic nervous system.
|
|
|
is the pH of the stomach low or high?
|
Normal. Amylase works best at a pH of 7.
|
|
|
What does the epiglottis do?
|
prevents food from entering trachea.
|
|
|
What does the uvula do?
|
prevents food from entering nasal passages.
|
|
|
How does food get down the esophogus?
|
peristalsis.
|
|
|
What do the sphincters of the esophogus do?
|
Prevents backflow.
|
|
|
How many gastric glands does our stomach contain?
|
Millions.
|
