Mader's Concepts in Biology, First Edition

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Sylvia S. Mader

Chapter 34

Question 1

Small organic molecules which travel through the air between two members of the same species and influence behavior or other physiological processes are referred to as:

A. hormonesB. aldosteronesC. norepinephrinesD. pheromonesE. cortisols

Question 2

Pheromones are detected by the:

A. hypothalamus

B. pituitary gland

C. vomeronasal organ

D. thyroid gland

E. pineal gland

Question 3

Pheromones are considered a type of hormone.

A. true

B. false

Question 4

Which of the following would be supportive evidence to suggest that pheromones play a role in human physiology?

A. the circadian rhythm in humans

B. the synchronization of menstrual cycles of women which live together

C. the regulation of blood sugar by the pancreas

D. the production of milk by a new mother for her baby

E. the regulation of calcium in the blood

Question 5

Which body system coordinates activities of body parts by releasing hormones into the blood?

A. the nervous system

B. the digestive system

C. the respiratory system

D. the circulatory system

E. the endocrine system

Question 6

Which of the following is not true about hormones?

A. hormones are secreted into the bloodstream

B. hormones may be used at a far distance from where the hormone is made

C. hormones are made by glands that have ducts

D. hormones bind to receptor sites at a target cell

E. hormones have a slower effect than that mediated by the nervous system

Question 7

When combining with the target organ, the nervous system acts faster than the endocrine system.

A. true

B. false

Question 8

Which of the following is true of both the nervous system and the endocrine system?

A. they both use a negative feedback mechanism

B. they both use blood vessels

C. they both produce neurotransmitters

D. they both produce hormones

E. they both provide long-lasting responses

Question 9

If you were studying hormones which never enter the cell and are commonly called the first messengers, you would be studying which of the following?

A. DNA hormonesB. peptide hormonesC. RNA hormonesD. steroid hormonesE. lipid hormones

Question 10

A biologist is studying hormones which enter the cell or nucleus where they bind to receptors. Based on this information you would conclude that he or she is studying which of the following?

A. DNA hormones

B. peptide hormones

C. RNA hormones

D. steroid hormones

E. lipid hormones

Question 11

Steroid hormones can be produced by which of the following endocrine structures?

A. the pituitary gland

B. the pineal gland

C. the parathyroid gland

D. the thyroid gland

E. the ovaries

Question 12

Which of the following is not true of steroid hormones?

A. they are lipids

B. they can bind to receptors inside the nucleus

C. they bind to the plasma membrane

D. they activate transcription

E. they can be produced in the adrenal cortex

Question 13

A biologist is studying an endocrine gland found in the brain. Based on this information you would conclude that he or she is studying which of the following?

A. the thyroid glandB. the pituitary glandC. the thymus glandD. the adrenal glandE. the parathyroid gland

Question 14

Which of the following endocrine structures would be found directly beneath the breastbone in the thoracic cavity?

A. the thyroid gland

B. the pituitary gland

C. the thymus gland

D. the adrenal gland

E. the parathyroid gland

Question 15

If you were studying an endocrine structure found in the neck you would be studying which of the following?

A. the pineal gland

B. the hypothalamus

C. the adrenal gland

D. the thyroid gland

E. the thymus gland

Question 16

Which of the following endocrine gland(s) sits on top of the kidneys in the abdominal cavity?

A. the adrenal glands

B. the pineal gland

C. the thymus gland

D. the hypothalamus

E. the thyroid

Question 17

When hormones work against each other to maintain homeostasis it is referred to as:

A. negative hormone action

B. circadian hormone action

C. antagonistic hormone action

D. feedback hormone action

E. positive hormone action

Question 18

A biologist is studying an endocrine gland that has a posterior and anterior portion and is responsible for producing prolactin and oxytocin. Based on this information you would conclude that he or she is studying:

A. the thyroid gland

B. the thymus gland

C. the adrenal gland

D. the pituitary gland

E. the pineal gland

Question 19

Which of the following hormones stimulates the uterus to contract during child birth and produce milk letdown during nursing?

A. gonadotropic hormone

B. oxytocin

C. prolactin

D. melatonin

E. calcitonin

Question 20

If you were studying the part of the endocrine system which controls glandular secretion of the pituitary gland you would be studying which of the following?

A. the thyroid glandB. the adrenal cortexC. the pineal glandD. the thymus glandE. the hypothalamus

Answer Key – Chapter 341. D2. C3. B4. B5. E6. C7. A8. A9. B10. D

11. E12. C13. B14. C15. D16. A17. C18. D19. B20. E