Instructions. Connect the iPhone to your computer using the iPhoneâs USB cable. Open iTunes on the computer if it does not open automatically when you connect the iPhone. If you donât have the latest version of iTunes, you can download it free from Appleâs website.Select the iPhone on the list of available devices in iTunes.nstructions. Connect the iPhone to your computer using the iPhoneâs USB cable. Open iTunes on the computer if it does not open automatically when you connect the iPhone. If you donât have the latest version of iTunes, you can download it free from Appleâs website.
In immunology, activation is the transition of leucocytes and other cell types involved in the immune system. On the other hand, deactivation is the transition in the reverse direction.
Lesson Summary. The activation energy is the energy required to start a reaction. Enzymes are proteins that bind to a molecule (substrate) to modify it and lower the energy required to make it react. The rate of reaction is given by the Arrhenius equation. The rate of reaction increases if the activation energy decreases.