18. The surface of a cell membrane that faces the interior of the cell is hydrophobic.
TRUE
FALSE

Explanation:

The inside of the cell contains a water-based substance (cytoplasm) and as such surface of the cell membrane that faces the inside of the cell has to be hydrophilic.

Also, the hydrophobic tails of the phospholipid bilayer that form the cell membrane face each other inside the membrane. The hydrophilic head faces the outside and inside of the cell. See the image below to further help in understanding.

1. (1.2kw)x(15/60hours) = .3kwh --> a

2. (5kw)x(90/60hours)x(8cents/kwh) = $0.60 --> d

3. microwave --> 1200 watts = (1.2kw)x(6/60hours) = .12kwh

coffee-maker --> 900 watts = (.9kw)x(10/60hours) = .15kwh

therefore, it requires more energy for the coffee-maker to do the same amount of work.

so the answer is a.

answer; i believe the correct answer is (replication is not conservative);