How do protein hormones and steroid hormones differ in how they affect target cells?

What will be an ideal response?


Protein hormones bind to receptors on the cell membrane of their target cells. This binding initiates a series of chemical reactions that ends with the cell's response to the hormone. Steroid hormones cross the cell membrane and bind to receptors in either the cytoplasm or nucleus of target cells. The hormone and receptor then bind to DNA in the nucleus and directly affect gene transcription.

Environmental & Atmospheric Sciences

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How fast do plates move relative to one another?

A. kilometers per year B. centimeters per year C. meters per year D. one hundred kilometers per year

Environmental & Atmospheric Sciences

Which of the following organisms would be most likely to be preserved in the geologic record?

A) a clam with a thick calcite shell that lived on a mudflat B) the bones of a dinosaur that lived on semi-arid plains C) a tree D) a mussel that clings to rock outcrops in the surf zone

Environmental & Atmospheric Sciences

The potato is native to Europe

Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

What is the formula of the compound formed by potassium and chlorine?

A) KCl B) KCl2 C) KCl3 D) K2Cl

Environmental & Atmospheric Sciences