Science Notebook - Student Edition

(Steven Felgate) #1
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

356 Digestive and Endocrine Systems


nutrients

Digestive and Endocrine Systems


Section 35.1 The Digestive System


Skim Section 1 of the chapter. Write two questions that come to
mind from reading the headings and the illustration captions.

1.

2.

Use your book or dictionar y to define nutrients.

Write the correct vocabular y term in the left column for each
definition below.

process that breaks food into smaller pieces by chewing and by the
churning action of smooth muscles in the stomach and small intestine

longest part of the digestive tract, which connects the stomach and
the large intestine and where digestion is completed

muscular tube that connects the pharynx to the stomach

enzyme found in saliva that begins chemical digestion by breaking
down starches into sugars

fingerlike structures in the small intestine through which chemical
digestion is completed and most nutrients from food are absorbed

enzyme in the stomach that helps digest proteins

largest internal organ of the body; produces bile, which helps to
break down fats

action of digestive enzymes in breaking down large molecules of
food into smaller molecules that can be absorbed by cells

rhythmic contraction of smooth muscles that moves food through
the digestive tract

end portion of the digestive tract, which includes the colon, rectum,
and appendix

New
Vocabulary

Main Idea Details


Review
Vocabulary
Free download pdf