Digestive Organs
This is where digestion begins
What is the mouth?
These are strong tissues that help grind food
What are teeth?
What are carbohydrates?
These are proteins that help speed up chemical reactions in our bodies
What are enzymes?
What are the stomach and pancreas?
This organ is a muscular tube where food goes after leaving the mouth.
What is the esophagus?
This liquid in the mouth helps break down food
What is saliva?
The name of the process where food is chewed and broken down into smaller pieces.
What is mastication?
An area on the enzyme that has a unique shape
What is the active site?
The final products of breaking down fats
What are fatty acids and glycerol?
This organ stores food, is lined with mucus, and mixes the food with its juices to break it down
What is the stomach?
This small pouch stores the bile
These nutrients help build and repair body tissues
What are proteins?
What is amylase?
The locations of the production of lipase
What are the stomach and pancreas?
This long, coiled part of the digestive system absorbs nutrients from food.
What is the small intestine?
This organ produces bile that helps digest fats.
What is the liver?
The name of the movement where the walls of the esophagus contracts and expands to help food move down.
What is peristalsis?
This enzyme breaks down protein into amino acids
What is protease?
The factor that makes an enzyme become denatured/stop working.
What is high temperature?
This organ removes water from waste and forms stool
What is the large intestine?
This organ makes enzymes that aid in breaking down carbohydrates, proteins, and fats.
What is the pancreas?
Explain how the villus structure is adapted for digestion
The epithelium is thin to increase diffusion of nutrients into the bloodstream; the microvilli increases surface area for better absorption; blood capillaries absorbs nutrients.
Explain the lock-key complex
Key - substrate; lock - enzyme; a specific substrate can only fit in the active sit of an enzyme to work and form the lock-key complex.
Why does pepsin have a pH range between 1 and 4, and pancreatic amylase has a pH range of 7-9?
Pepsin can be found in the stomach, where hydrochloric acid is found as well so the range is acidic. Amylase is found in the pancreas and secreted to the small intestine along with bile, which is alkaline.