D. Which of the following are functions of the cell membrane? Choose 3. A Cells don't have membranes.
B To regulate what enters and leaves the cell
C To make ribosomes
D To make proteins
E To protect the cell
F To separate the internal and external environment of the cell

Use the drop-down menus to match each part of the scenario to the correct scientific practice. akira records the speed of a reaction without a catalyst and then with a catalyst. akira creates a reaction without a catalyst and repeats the reaction with a catalyst. akira turns in a written lab report to his science teacher. akira wonders, "will adding a catalyst speed up this chemical reaction? " akira writes in his notes that adding a catalyst sped up the chemical reaction because the catalyst lowers the activation energy needed to get the reaction started.