Radiation from natural sources (as opposed to sources resulting from human activity) is called
____________________ radiation. Fill in the blank(s) with the appropriate word(s).
ANS: background
You might also like to view...
Batteries in your flashlight are examples of ____ energy
Fill in the blank with the appropriate word.
The Na+/K+ pump transports ____
a. 2 sodium ions in and 2 potassium ions out b. 2 sodium ions in and 3 potassium ions out c. 2 sodium ions out and 3 potassium ions in d. 3 sodium ions in and 2 potassium ions out e. 3 sodium ions out and 2 potassium ions in
The Golgi apparatus
A) is composed of stacks of membranous vesicles that are continuous with one another. B) stores, modifies, and packages proteins. C) strings together amino acids to produce proteins. D) is the site of carbohydrate breakdown.
Some cells have aquaporins—channels that facilitate the flow of water molecules through the plasma membrane. For these cells, what regulates the rate and direction of water diffusion across the membrane?
(a) aquaporin conformation (b) resting membrane potential (c) solute concentrations on either side of the membrane (d) availability of ATP