Question

question 8
when the concentration of molecules on both sides of a membrane is the same, the solution
o a is hypotonic.
o b is hypertonic.
o c has reached equilibrium.
o d moves from an area of higher concentration to an area of lower concentration.

question 9
what happens when atp is converted to adp?
o a energy is stored in bonds.
o b energy is released from bonds.
o c the cell dies.
o d energy remains in the same.

Explanation:

For Question 8, equilibrium in a solution across a membrane is achieved when molecule - concentration is equal on both sides. Hypotonic and hypertonic refer to concentration differences. Movement from high to low concentration is a process that occurs before equilibrium.
For Question 9, ATP (adenosine tri - phosphate) has high - energy bonds. When it is converted to ADP (adenosine diphosphate), one phosphate group is removed and energy stored in the bond is released for cellular processes.

Answer:

Question 8: c. has reached equilibrium
Question 9: b. Energy is released from bonds