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Basic Biology Practice Test: Hormones and the Endocrine System
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The endocrine system, or hormonal system, is made up of glands that produce hormones. Hormones are chemical messengers that travel through the bloodstream to organs, skin, muscles, and other tissues. They tell the body what to do and when to do it.

Basic Biology Practice Test: Hormones and the Endocrine System
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25 Questions

1. Winter hibernation and spring reproduction in bears are cued by seasonal changes in the secretion of
2. Growth factors are local regulators that
3. When a steroid hormone and a peptide hormone exert similar effects on a population of target cells, then
4. The steroid hormone that coordinates molting in arthropods is
5. Ecdysone is a(n)
6. Melatonin is secreted by
7. During a stressful interval
8. After eating a carbohydrate-rich meal, the mammalian pancreas increases its secretion of
9. Aspirin and ibuprofen both
10. Hormone X activates the cAMP second messenger system in its target cells. The greatest response by a cell would come from
11. The hypothalamus modulates hormone secretion by the anterior pituitary by means of
12. If a person loses a large amount of water in a short period of time, he or she may die from dehydration. ADH can help reduce water loss through its interaction with its target cells in the
13. Hormones that promote homeostasis
14. Prolactin stimulates mammary gland growth and development in mammals and regulates salt and water balance in freshwater fish. Many scientists think that this wide range of functions indicates that prolactin
15. DES is called an 'endocrine disrupting chemical' because it structurally resembles, and interferes with, the endocrine secretions of the
16. Epinephrine is an example of
17. Analysis of a blood sample from a fasting individual who had not eaten for 24 hours would be expected to reveal high levels of
18. The interrelationships between the endocrine and the nervous systems are especially apparent in
19. Prostaglandins are local regulators whose chemical structure is derived from
20. A disease that destroys the adrenal cortex should lead to an increase in the plasma levels of
21. Which of the following is the most likely explanation for hypothyroidism in a patient whose iodine level is normal?
22. The increased contraction of the human uterus during labor and delivery is at least partially due to the actions of
23. The higher level of metabolic activity typical of nonhibernating temperate mammals during the winter months is due to increased secretion of
24. Testosterone is an example of
25. Steroid and peptide hormones typically have in common

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