A keyboard is also used to give commands to the operating system of a computer, such as Windows ' Control-Alt-Delete combination, which brings up a task window or shuts down the machine. A command-line interface is a type of user interface operated entirely through a keyboard, or another device doing the job of one.
How Temperature Affects Enzymes. Higher temperatures tend to speed up the effect of enzyme activity, while lower temperatures decrease the rate of an enzyme reaction. At higher temperatures, more molecules collide, increasing the chance that an enzyme will collide with its substrate.
Name:________________________________________ Date:__________. Objectives. * Measure the effects of changes in temperature, pH, and enzyme concentration on reaction rates of an enzyme catalyzed reaction in a controlled experiment. * Explain how environmental factors affect the rate of enzyme-catalyzed reactions.