Most reactions speed up when - a. the temperature decreases b. equilibrium is achieved c. the concentration of the products increases d. the reactant is in small pieces.

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.