9.4

Question 1

Functions of The Digestive System

Answer 1

(I-P-D-S-A-E: I procrastinated doing studying as expected)
Ingestion
Propulsion
Digestion
Secretion
Absorption
Elimination

Question 2

Ingestion

Answer 2

The selective intake of food into the mouth

Question 3

Propulsion

Answer 3

Movement from the mouth to the anus

Question 4

Digestion

Answer 4

The breakdown of foods into forms that can be transported to and absorbed into cells. 2 components: Mechanical and Chemical Digestion.

Question 5

Mechanical Digestion

Answer 5

Breaks larger pieces of food into smaller ones (DOES NOT ALYER CHEMICAL COMPOSITION).

Question 6

Chemical Digestion

Answer 6

Breaks down larger molecules of food into smaller and simple chemicals. Carries out by digestive enzymes produced by salivary glands, stomach, small intestine, and pancreas.

Question 7

Digestive Enzymes

Answer 7

Amylases: digest carb to sugar
Lipases: digest fat to fatty acids
Proteases: digest proteins to amino acids

Question 8

Secretion

Answer 8

The addition throughout the digestive tract of secretions that lubricate, liquify, and digest the food

Question 9

Absoption

Answer 9

The movement of nutrient molecules out of the digestive tract and through the epithelial cells lining the tract into the blood or lymph for transportation to body cells

Question 10

Elimination

Answer 10

The process by which the unabsorbed residue of food is removed from the body