When ammonium nitrate crystals are dissolved in water, heat energy is taken in. A student puts some water in a beaker. He puts a thermometer in the water. He adds some ammonium nitrate crystals
and stirs the mixture.
Describe what the student would see.

What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.