URGENT
Vertebrate hormones travel through the bloodstream to reach their cells. Hormones can be a variety of kinds of molecules. Insulin is a hormone that is protein derivative and testosterone is a steroid molecule.
(a)Describe the structure of a protein hormone and give one more example.
(b)Describe the structure of a steroid hormone and give one more example.
(c) Compare and contrast the response to protein hormones and steroid hormones. Use specific hormones as examples. These hormones can be ones that are mentioned or provided or different hormones.
(d) Describe what happens on the target cell when the hormone reaches its surface.