What will happen if both, emitter and collector of a transistor are reversed biased?

What will happen if both , emitter and collector of a transistor are reverse biased ?

What will happen if emitter as well as collector in a transistor are forward biased?

Can we interchange emitter and collector of a transistor? Explain.

In which region will a transistor act if both emitter -base and collector-base junctions are reverse biased?

In the figure the collector forward or reverse biased?

In the figure the collector forward or reverse biased?

What is the collector of a transistor made wider than emitter and base ?