This 6-page worksheet product (with 2-page answer key) is designed to introduce upper middle school and high school anatomy students to the processes of digestion, absorption and elimination. Topics include: GI tract, what is digestion, mechanical vs. chemical digestion, digestion in the mouth, teeth, salivary amylase, digestion in the stomach, gastric glands, chyme, digestion in the small intestine, intestinal juice, pancreatic juice, bile, enzymes, absorption in the small intestine, villi and microvilli, gastric capillaries and lacteals, absorption in the large intestine, elimination in the rectum, phases of gastric control (cephalic, gastric, and intestinal), as well as gut hormones including gastrin, secretin and CCK.

Product Contents:

Pages 1-2 – The Digestive Process:

• Intro to digestion, absorption, and elimination
• Types of digestion (mechanical vs. chemical)
• Carbohydrate, lipid, & protein digestion
• Digestion in the mouth (teeth, tongue, saliva, amylase)
• Digestion in the stomach (motility, gastric enzymes, acid)
• Gastric glands and gastric juice
• Digestion in the small intestine (e.g. duodenum, jejunum, etc.)
• Duodenum and intestinal juice
• Pancreas and pancreatic juice
• Liver, gallbladder and bile
• Digestive enzymes (e.g. proteases, lipases, carbohydrases, etc.)

Pages 3-4 – Absorption, Elimination, and Hormonal Control:

• Absorption in the small intestine (e.g. villi, microvilli, capillaries, lacteals)
• Absorption in the large intestine (e.g. haustra)
• Formation of feces
• Storage and elimination in the rectum
• Phases of gastric control (cephalic, gastric, intestinal)
• GI or gut hormones and their actions (e.g. gastrin, secretin, CCK, etc.)

Pages 5-6 – Review Questions:

• Short answer (e.g. contrast mechanical vs. chemical digestion)
• Summary tables (e.g. 4 secretory cells in gastric glands)

Pages 7-8 – Answer Key:

• A color-coded answer key for all worksheet questions (2 pages)

Downloadable in 2 Formats:

• This product comes in 2 formats: a static PDF document and fully-editable Word document
• Download the PDF preview to get a good sense of what you are getting. No surprises!

Relevant NGSS Core Idea(s) Addressed by This Product:

NGSS - MS-LS1-7

Life Science – From Molecules to Organisms: Structures and Processes

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Copyright © Douglas Enns. All rights reserved by author. This product is to be used by the original downloader only. Copying for more than one teacher, classroom, department, school, or school system is prohibited. This product may not be distributed or displayed digitally for public view. Failure to comply is a copyright infringement and a violation of the Digital Millennium Copyright Act (DMCA). Clipart and elements found in this document are copyrighted and cannot be extracted and used outside of this file without permission or license. Intended for classroom and personal use ONLY.