Question

inquizitive
chapter 25: endocrine and immune systems: testing the iceman
page(s) 493-496 25.2. describe how a hormone can act on a target cell.
put the following hormone signaling events in order.
start by choosing the first item in the sequence and clicking, dragging, or using your keyboard to select it.
changes in cellular activity initiated. *
endocrine cells release hormones. *
hormones bind to receptors. *
hormones circulate in blood. *

Explanation:

Step1: Identify the starting event

Endocrine cells must first release hormones to initiate signaling.

Step2: Next step after release

Released hormones travel through the blood to reach target cells.

Step3: After circulation

Hormones bind to specific receptors on target cells.

Step4: Final event

Binding triggers changes in the target cell's activity.

Answer:

1. Endocrine cells release hormones.
2. Hormones circulate in blood.
3. Hormones bind to receptors.
4. Changes in cellular activity initiated.