Digestion Basics
This is the process of breaking down food into smaller particles
Digestion
These are the three main macronutrients.
carbohydrates, proteins, and fats
This type of digestion involves cutting, tearing, and grinding.
mechanical digestion
Digestion begins in this organ.
mouth
Most absorption happens in this organ.
small intestine
The digestive system has these three main functions.
breakdown, absorption, and elimination
This macronutrient provides quick energy.
carbohydrates
This type of digestion uses enzymes and acids.
chemical digestion
This tube connects the mouth to the stomach.
esophagus
These structures increase surface area for absorption.
villi
Food must be broken down into these before the body can use it.
micronutrients
This macronutrient is made of amino acids.
proteins
This is an example of mechanical digestion.
teeth and chewing
This movement pushes food down the esophagus.
peristalsis
These vessels absorb nutrients from carbs and proteins.
blood capillaries
This type of waste is removed at the end of digestion.
solid waste (feces)
This macronutrient helps protect organs and form cell membranes.
Fats
This substance in the stomach helps chemical digestion.
stomach acid
This organ turns food into chyme.
Stomach
These absorb fats and are part of the lymph system.
lacteals
This system absorbs nutrients into this part of the body.
bloodstream
Carbohydrates are broken down into this micronutrient.
simple sugars
This enzyme in saliva breaks down starch.
amylase
This is the correct order: mouth → ___ → esophagus → stomach
oropharynx
This organ produces bile for fat digestion.
liver