Cell Communication, signal transduction and endocrine

Choose the correct order of communication.

• reception, response, transduction

• transduction, reception, response

• response, transduction, reception

• reception, transduction, response

Identify the type of receiver seen here.

• G-protein coupled receptor

• gated ion channel

• RTKs

• cAMP

Long distance signals involving hormones are ________ signals.

• paracrine

• synaptic

• endocrine

Adrenaline is released from your adrenal glands to affect various systems in the body. This is an example of ____ signaling.

• synaptic

• endocrine

• paracrine

• autocrine

Which kind of receptors are seen here?

• G-coupled protein receptor

• RTK's

• Gated ion channels

Which are two widely used second messengers?

• cAMP

• RTK's

• Ca²⁺

• sodium

Programmed cell death is known as

• mutation

• termination

• cytokinesis

• apoptosis

What determines whether a signal molecule binds on the surface or enters the cell?

• size

• polarity

• ability to cross the membrane

• all of these

Many cancer cells signal themselves to grow and divide. This is an example of ______ signaling.

• long distance

• autocrine

• paracrine

• hormone

Communication between neighboring/touching cells is common in plants.

• True

• False