An electrolyte is a mineral or salt dissolved in the body. (Write True or False)

Choice A reason: This is incorrect because filtration is a passive transport mechanism that does not require cellular energy. Filtration is the movement of fluid and solutes across a membrane due to hydrostatic pressure.

Choice B reason: This is correct because active transport is a transport mechanism that requires cellular energy in the form of ATP. Active transport is the movement of molecules across a membrane against their concentration gradient, using carrier proteins.

Choice C reason: This is incorrect because diffusion is a passive transport mechanism that does not require cellular energy. Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration, until equilibrium is reached.

Choice D reason: This is incorrect because osmosis is a passive transport mechanism that does not require cellular energy. Osmosis is the movement of water across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Choice A reason: Sodium (Na+) imbalance can cause neurological symptoms such as confusion, seizures, or coma, but not abdominal pain or urinary retention.

Choice B reason: Calcium (Ca2+) imbalance can cause abdominal pain, urinary retention, and confusion, as well as muscle weakness, bone pain, and cardiac arrhythmias. These signs are the result of an inadequate supply of calcium, which is essential for nerve and muscle function, as well as bone health.

Choice C reason: Chloride (Cl-) imbalance can cause acid-base disorders such as metabolic acidosis or alkalosis, but not abdominal pain, urinary retention, or confusion.

Choice D reason: Phosphates (PO4^3^-) imbalance can cause bone and muscle problems, such as rickets, osteomalacia, or tetany, but not abdominal pain, urinary retention, or confusion.

Choice E reason: Potassium (K+) imbalance can cause cardiac and neuromuscular symptoms, such as arrhythmias, palpitations, muscle weakness, or paralysis, but not abdominal pain, urinary retention, or confusion.