Examlex
Galileo's use of inclined planes allowed him to effectively
Concentration Gradient
The gradual difference in the concentration of solutes in a solution between two regions, leading to the movement of substances from high to low concentration.
Competitive Molecules
Molecules that compete with each other for binding sites on enzymes or receptors in biological systems.
Sodium-Potassium Pump
A cell membrane protein that uses ATP to move sodium ions out of the cell and potassium ions into the cell, essential for cellular function.
Plasma Membrane
The phospholipid bilayer that surrounds cells, controlling the movement of substances in and out of the cell, thereby maintaining its internal environment.
Q2: A piece of rope is pulled by
Q20: An object is propelled along a straight-line
Q21: When mechanical work is done on a
Q37: In optical fibers of uniform density, light
Q51: A mixture of cyan and yellow pigments
Q63: Radioactivity in the world is something<br>A) relatively
Q88: The image of the "infinitely-far-away" sun produced
Q93: A bullet fired horizontally over level ground
Q106: The atomic mass number of an element
Q125: All deposits of natural uranium contain appreciable