Question 1

why is water necessary for living organisms?

all organisms need water to stay clean.

all organisms need water as an energy source.

all organisms need water to transport chemicals into their cells.

all organisms live in the water.

2 points

Membrane vesicles containing an internal sodium chloride (nacl) concentration of 0.14 m are placed into separate beakers each containing a different solution. the first beaker contains 0.14 m sucrose, while the second beaker contains 0.14 m calcium chloride (cacl2). the temperature is 25°c. what is the solute potential inside the vesicles, expressed in units of mpa?