Exam 6: Interactions Between Cells and The Extracellular Environment

Gas exchange between the cells and extracellular fluid utilizes active transport.

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

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

A one molal NaCl solution has the same osmolality as a one molal glucose solution.

A 0.5M glucose (molecular weight = 180g) contains ____________ grams of glucose per liter.

A solution freezing at -1.98 ^$\circ$ C

Secondary active transport often occurs as a coupled transport process.

The rate of diffusion increases as the concentration gradient increases.

80% of the extracellular fluid is termed interstitial fluid.

The resting membrane potential is closest to the equilibrium potential for

Dialysis uses the process of

Which of the following is NOT true of cyclic AMP?

________ are a class of glycoproteins that bind to components in the extracellular matrix thereby acting as adhesion molecules between cells and the matrix.

Channels present in the membranes of some cells that allow rapid movement of water are called

What molecules pass information from the polar regulatory molecule receptor to activate the enzymes that produce cAMP?

How much of the total body water content is intracellular?

The rate of diffusion is influenced by

In secondary active transport, if the other substance is moved in the same direction as Na⁺, it is called

Active transport

A cell placed in a 9% saline solution (molecular weight = 58.5g) would