Physiology · Digestive System · Easy
Lactase
Meaning: A brush border enzyme in the small intestine that splits milk sugar into glucose and galactose.
In practice: People with low lactase activity often get bloating and diarrhoea after drinking milk.
Quick check
Two questions on related physiology words.
Which word means: A decrease in membrane potential, triggering a nerve or muscle action potential.
Answer: Depolarisation
Which word means: The ability of cardiac or neural tissue to transmit electrical impulses from cell to cell.
Answer: Conductivity
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