Biology 37 The Endocrine System MCQ


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Photo depicts Earth from space.
This NASA image is a composite of several satellite-based views of Earth. To make the whole-Earth image, NASA scientists combine observations of different parts of the planet. (credit: NASA/GSFC/NOAA/USGS)

Viewed from space, Earth offers no clues about the diversity of life forms that reside there. The first forms of life on Earth are thought to have been microorganisms that existed for billions of years in the ocean before plants and animals appeared. The mammals, birds, and flowers so familiar to us are all relatively recent, originating 130 to 200 million years ago. Humans have inhabited this planet for only the last 2.5 million years, and only in the last 200,000 years have humans started looking like we do today.

Unit 7. Animal Structure and Function

Chapter 37: The Endocrine System MCQ Multiple Choices Questions Quiz Test Bank

37.1 Types of Hormones

37.2 How Hormones Work

37.3 Regulation of Body Processes

37.4 Regulation of Hormone Production

37.5 Endocrine Glands

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Biology 37 The Endocrine System MCQ
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Sample Questions from the Biology 37 The Endocrine System MCQ Quiz

Question: What hormone is produced by beta cells of the pancreas?






Question: When blood calcium levels are low, PTH stimulates:


excretion of calcium from the kidneys

excretion of calcium from the intestines



Question: Which endocrine glands are associated with the kidneys?


thyroid glands

pituitary glands

adrenal glands


Question: Which class of hormones can diffuse through plasma membranes?


lipid-derived hormones

amino acid-derived hormones

peptide hormones

glycoprotein hormones

Question: A newly discovered hormone contains four amino acids linked together. Under which chemical class would this hormone be classified?


lipid-derived hormone

amino acid-derived hormone

peptide hormone


Question: Which mechanism of hormonal stimulation would be affected if signaling and hormone release from the hypothalamus was blocked?


humoral and hormonal stimuli

hormonal and neural stimuli

neural and humoral stimuli

hormonal and negative stimuli

Question: Drinking alcoholic beverages causes an increase in urine output. This most likely occurs because alcohol:


inhibits ADH release

stimulates ADH release

inhibits TSH release

stimulates TSH release

Question: A rise in blood glucose levels triggers release of insulin from the pancreas. This mechanism of hormone production is stimulated by:


humoral stimuli

hormonal stimuli

neural stimuli

negative stimuli

Question: A new antagonist molecule has been discovered that binds to and blocks plasma membrane receptors. What effect will this antagonist have on testosterone, a steroid hormone?


It will block testosterone from binding to its receptor.

It will block testosterone from activating cAMP signaling.

It will increase testosterone-mediated signaling.

It will not affect testosterone-mediated signaling.

Question: What effect will a cAMP inhibitor have on a peptide hormone-mediated signaling pathway?


It will prevent the hormone from binding its receptor.

It will prevent activation of a G-protein.

It will prevent activation of adenylate cyclase.

It will prevent activation of protein kinases.

Question: FSH and LH release from the anterior pituitary is stimulated by ________.






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