Exam 6: Interactions Between Cells and the Extracellular Environment

Bulk transport is required for the transport of large polar molecules into or out of cells.

A 0.1 Osm plasma sample would

Which of the following is a function of the steep Na⁺/K⁺ gradient across the cell membrane?

Secondary active transport often occurs as a coupled transport process.

Antidiuretic hormone is released by the posterior pituitary in response to increased plasma osmolality.

The primary intracellular cation is

Which of the following is NOT true of hypoglycemia?

Cerebral edema would be treated with a(an)___________ intravenous solution of mannitol.

Because the kidneys are so important for water balance,the plasma membranes of kidney cells have many permanent aquaporins.

Ion channels that can be opened by physiological stimuli are said to be

The osmotic pressure of a solution is directly related to its ___________ concentration.

Ions like Ca²⁺ can be second messengers for cell signaling.

Poisoning the Na⁺/K⁺ pump would cause the volume of the cell to __________.

ORT is based on understanding transport mechanisms and junctional complexes.

Whose equation allows one to calculate equilibrium potential for a particular ion?

The extracellular matrix is made up of collagen,elastin,and a gel-like ground substance.

A 10% dextrose solution is isotonic to plasma.

80% of the extracellular fluid is termed as interstitial fluid.

Passive transport of water is known as

Which of the following is NOT true of cyclic AMP?