Signal propagation: Phosphorylation cascade

3 Activities

Which of the following is incorrect about phosphorylation cascades?

A) Phosphorylation always activates molecules

B) The phosphate group transferred to the product is usually taken from ATP

C) ADP is often produced as a result of a phosphorylation

D) Kinases are the enzymes that carry out this process

I don't know

Signal transduction:

When one signal molecule hits multiple other signal molecules which in turn hits multiple others, this is called?