Physiology · Digestive System · Hard
Digestion
Meaning: The mechanical and chemical breakdown of food into absorbable nutrients.
In practice: Digestion begins in the mouth with chewing and salivary amylase.
Quick check
Two questions on related physiology words.
Which word means: A chemical messenger secreted by a gland that travels in the blood to target organs.
Answer: Hormone
Which word means: The breakdown of glucose to produce energy in the cytoplasm.
Answer: Glycolysis
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