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It is a hot sunny Sunday morning and you visited your grandmother for lunch. 

Grandmother: Can you please water the plants in my garden until lunch is ready?

You quickly rush to the garden to water your grandmother’s plants. While watering her plants, you remember that tomorrow you have a biology lab. In fact, Prof. Smith mentioned that during the lab tomorrow you will test the movement of water molecules across the plasma membrane of plant and animal cells. You are trying to remember the name of the process to explain the movement of water molecules.

What is the process?