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.
Effect of Temperature on Reaction Rate of Amylase and Starch. Objectives. The main objective is to understand how an enzyme works, and how it functions under specific environmental conditions. (i.e. pH, temperature, concentration (enzyme/substrate). In this experiment we are studying how the temperature affects the rate of reaction of starch mixed with the amylase enzyme. Increase in kinetic energy, molecules bump into ea. Smaller likelihood that substrate, enzyme bump into ea.