Physiology · Cell Biology · Medium
Buffer
Meaning: A solution that resists changes in pH, maintaining acid-base balance in body fluids.
In practice: The bicarbonate buffer system keeps blood pH stable around 7.4.
Quick check
Two questions on related physiology words.
Which word means: The intrinsic ability of cardiac or skeletal muscle cells to shorten and generate force.
Answer: Contractility
Which word means: The addition of a phosphate group to a molecule, key in activating enzymes and producing ATP.
Answer: Phosphorylation
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