Digestive System Stidy Guide

Question 1

Mechanical digestion

Answer 1

physically breaking the food into smaller pieces

Question 2

Chemical digestion

Answer 2

breaking down the food into simpler nutrients that can be used by the cells

Question 3

Enzymes

Answer 3

a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being altered in the process

Question 4

Villi

Answer 4

vascular projections that increase the surface area of a membrane

Question 5

Peristalsis

Answer 5

involuntary movements of the longitudinal and circular muscles, primarily in the digestive tract but occasionally in other hollow tubes of the body, that occur in progressive wavelike contractions

Question 6

Macromolecules

Answer 6

molecule containing a very large number of atoms, such as a protein, nucleic acid, or synthetic polymer.

Question 7

Monemer

Answer 7

molecule of any of a class of compounds, mostly organic, that can react with other molecules to form very large molecules, or polymers

Question 8

Polymer

Answer 8

a large molecule, or macromolecule, composed of many repeated subunits