Endocrine System Quiz

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Questions and Answers

What is the primary source from which all steroid hormones are derived?

  • Fatty acids
  • Glucose
  • Glycerol
  • Cholesterol (correct)

Which type of hormone action involves the hormone acting on the same cell that produced it?

  • Paracrine action
  • Exocrine action
  • Endocrine action
  • Autocrine action (correct)

Which class of hormones includes compounds like insulin?

  • Steroid hormones
  • Amino acid derivatives
  • Peptide hormones (correct)
  • Prostaglandins

How do steroid hormones primarily coordinate physiological responses?

<p>By regulating gene expression (C)</p> Signup and view all the answers

What characteristic allows steroid hormones to easily diffuse across lipid membranes?

<p>Low molecular weight (D)</p> Signup and view all the answers

Which hormone class primarily acts locally by diffusing to nearby target cells?

<p>Prostaglandins (D)</p> Signup and view all the answers

Which analytic technique is crucial for diagnosing endocrine disorders?

<p>Blood tests (C)</p> Signup and view all the answers

Where are steroid hormones primarily produced in the body?

<p>Endocrine glands (A)</p> Signup and view all the answers

Flashcards

What are hormones?

Chemical messengers produced and secreted by endocrine cells into the bloodstream. They regulate and control physiological functions.

What are steroid hormones?

A type of hormone that is derived from cholesterol and is produced by endocrine glands like the gonads and adrenal glands.

What is signal transduction?

The process of communication between the cell membrane and intracellular endpoints, leading to changes in the cell.

What are the characteristics of steroid hormones?

Lipophilic, low-molecular weight compounds derived from cholesterol.

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What are the three major functional types of hormones?

The endocrine action involves hormone distribution in the blood and binding to distant target cells. Paracrine action involves hormones acting locally on neighboring cells. Autocrine action involves hormones acting on the same cell that produced it.

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Where are steroid hormones produced?

Steroids are produced mainly by endocrine glands like the gonads, adrenals, and the feto-placental unit.

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How do steroid hormones move across cell membranes?

Steroids are non-polar and can diffuse across lipid membranes like the plasma membrane.

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What is the precursor molecule for steroid hormones?

Cholesterol is the precursor molecule for all steroid hormones.

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