Review the phases of the cell cycle in model 1 by placing the abbreviated phase name (g1 , s, g2 or m) next to the proper description. the cell grows by producing more proteins and organelles. dna replication occurs. the cell prepares for cell division with the appearance of centrosomes. mitosis and cytokinesis occurs.

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.