When a substance moves from an area of low concentration to an area of higher caoncentration, the substance moves _________ it's concentration gradient.
Cell-surface proteins allow a cell to ____________ with other cells.
A(n)_________protein binds to a specific signal molecule.
When the concentration of dissolved particles is the same throughout a solution, the system is said to be in _________.
__________ __________ involves the movement of particles down their concentration gradient through carrier proteins.
_________ ions are usually more conccentrated inside a cell than outside the cell.
A(n) _____________ ____________ amplifies the communication from a signal molecule.
2006-09-24 19:49:42 · 2 answers · asked by WALLACE D 1 in Science & Mathematics ➔ Biology
1) against
2) interact
3) receptor
4) equilibrium
5) Active transport
6) Sodium
7) secondary messenger
I think this should help you. But be sure to check if they are correct with your text book.
2006-09-24 21:32:16 · answer #1 · answered by mad g 2 · 0⤊ 0⤋
Very easy!
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I know it!
hmmmm?...
Just copy to your classmates!
2006-09-25 01:50:07 · answer #2 · answered by lara 2 · 0⤊ 1⤋