Chapter 1. Cellular Action of Peptide Hormones versus Steroid Hormones

Question 1.1

Which of the following statements correctly describe(s) the relationship between the classes of hormones and their behavior or function? Select all that apply.

The general chemical nature of a hormone can be used to predict:

UxXCdiuIDfYB7iao how soluble the hormone is in water.

UxXCdiuIDfYB7iao whether the hormone will be able to move through the cell membrane.

UxXCdiuIDfYB7iao whether the hormone interacts with receptors on the cell membrane.

UxXCdiuIDfYB7iao whether the hormone interacts with receptors inside the cell.

YZqRursQbQ4R6IcA whether the hormone will increase or decrease a specific cell function.

Question 1.2

Which of the following statements correctly describe(s) peptide hormones? Select all that apply.

UxXCdiuIDfYB7iao Insulin and glucagon are good examples of peptide hormones.

UxXCdiuIDfYB7iao Most peptide hormones act on cells by binding to receptors on cell surfaces and triggering signaling cascades inside the cell.

YZqRursQbQ4R6IcA Enzymes modify cholesterol compounds to produce peptide hormones.

UxXCdiuIDfYB7iao The action of peptide hormones can cause changes in gene expression or can affect the function of metabolic enzymes in cells.

YZqRursQbQ4R6IcA Peptide hormones bind to intracellular receptors and the peptide-receptor complex acts as a transcription factor.

Question 1.3

Which of the following correctly describe(s) the functioning of steroid hormones in the animal endocrine system? Select all that apply.

UxXCdiuIDfYB7iao Steroid hormones can change which mRNAs are produced in a cell.

UxXCdiuIDfYB7iao Steroid hormones have their primary effects in the cell’s nucleus.

YZqRursQbQ4R6IcA In general, peptide hormones are slower to act than steroid hormones and their actions last longer than those of steroid hormones.

YZqRursQbQ4R6IcA Steroid hormones bind to cell-surface receptors, which then trigger second messengers.

Question 1.4

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