The phrase 'perform different functions' is correct and usable in written English.
You can use it when you want to describe how something works or is used in a certain context. For example: A car's engine is made up of many components that all perform different functions to keep the vehicle running.
If genes/proteins perform different functions in the context of different pathways then the functional profiles of these pathways will be different.
Other researchers have since confirmed that people have several systems of mirror neurons, which perform different functions.
In a multicellular organism, cells become specialized to perform different functions through the process of differentiation.
To that end, Adidas has developed what it calls the first asymmetrical track spikes, creating shoes that are meant to perform different functions for each foot.
Hawkins' project builds on an assumption by Vernon Mountcastle, a neurobiologist who in the 70s pointed out that in the neocortex all the neurons are organised in the same way, even though different areas of the cortex perform different functions.
One sour note is the in-line control on the cord, which has three contacts to perform different functions if you click them once, twice or three times.
When two or more organs or structures are basically similar to each other in construction but are modified to perform different functions, they are said to be serially homologous.
It's also unclear whether the two vesicle types perform different functions.
The main idea about statements is simple: a statement has structure and its parts perform different functions.
Existing systems also open users to increased security risks because of the sheer scale of information stored in several systems that each perform different functions.
Robin Goad, Research Director for Hitwise, comments: "although social networks and search engines perform different functions, they both act as gateways to the wider Internet.
