wunder beta

📘 How digestion breaks down a meal

Follow chewing, acid, enzymes, bile, absorption, hormones, microbes, and waste through the digestive tract.

lessons

~20 min

to learn

🔬 Science

subject

Adults

level

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What you’ll learn

Ingestion
Mouth
Peristalsis
Stomach
Proteins
Bicarbonate
Bile
Lipase
Small intestine
Villi
Carbohydrates
Absorption
Hormones
Large intestine
Microbiome
Defecation

Questions this course answers

What does salivary amylase begin to digest?

Saliva contains an enzyme that starts carbohydrate digestion.

What does stomach acid help activate?

Acid helps create conditions for pepsin activity.

What does bile do to fats?

Bile salts increase fat surface area for lipase.

Where are most nutrients absorbed?

The small intestine has villi, microvilli, and transport routes for absorption.

What does the large intestine mainly recover?

The colon reclaims water and helps form stool.

Grounded in trusted sources

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