Cover Title Text: Daniel D. Chiras: Human Biology, Fifth Edition
Cover
Quick Jump to Chapter
Tools For Learning: Practice Quizzes

Please read each question and select your answer from the choices provided. You must complete all of the questions in order to view your results. At the end of each exam, you have the option to e-mail your results to your instructor.


1:  Which of the following functions is (are) affected by hormones?
A: Reproduction
B: Behavior
C: Homeostasis
D: All of the above
E: None of the above

2:  Target cells respond to specific hormones as a result of
A: protein receptors in the plasma membrane and cytoplasm
B: carbohydrate receptors in the plasma membrane and cytoplasm
C: nucleic acid binding sites in the plasma membrane and cytoplasm
D: specific binding sites on the enzymes in the cytoplasm

3:  Which of the following is a nontropic hormone?
A: TSH
B: Growth hormone
C: LH
D: ACTH

4:  The release of most hormones is controlled by
A: positive feedback loops
B: nerve impulses
C: negative feedback loops
D: the pituitary gland

5:  Natural fluctuations in hormonal release in the body are called
A: circadian rhythms
B: biorhythms
C: biological clocks
D: none of the above

6:  The endocrine and nervous systems differ in many ways in how they control body functions; which of the following is not a difference?
A: Speed
B: Duration of effect
C: Type of signal
D: None of the above

7:  The release of hormones from the anterior pituitary is controlled by
A: releasing hormones from the thalamus
B: releasing hormones from the thalamus
C: inhibiting hormones
D: is stimulated by releasing hormones, which travel from the anterior pituitary via the portal system

8:  Which of the following hormones stimulates cell growth in muscle and bone?
A: TSH
B: Growth hormone
C: ACTH
D: Gonadotropins

9:  The condition caused by excess secretion of growth hormone in adults is called
A: giantism
B: diabetes mellitus
C: acromegaly
D: none of the above

10:  Prolactin
A: stimulates contraction of the uterus during birth
B: stimulates milk production in the breast
C: is controlled by a releasing hormone from the anterior pituitary
E: secretion continues after suckling ceases

11:  Which of the following hormones comes from the posterior pituitary?
A: ADH
B: Prolactin
C: Growth hormone
D: Thyroxine

12:  Oxytocin
A: is released by the anterior pituitary
B: stimulates milk release from the glands in the breast
C: is involved in the control of blood pressure
D: relaxes the muscles in the uterine wall

13:  The thyroid gland
A: produces the hormone thyroglobulin
B: releases just two hormones, thyroxin and triiodothyronine
C: becomes enlarged when an individual ingests an excess of iodine
D: b and c
E: none of the above

14:  Which of the following is not a function of thyroxine?
A: Stimulation of glucose breakdown
B: Stimulates cellular growth and development in bones and muscles
C: Stimulates the onset of sexual maturity
D: Stimulates mental development
E: None of the above

15:  Hyperthyroidism in adults results in
A: weight loss
B: nervousness and anxiety
C: decrease in metabolic rate
D: a and b
E: a and c

16:  Calcitonin
A: decreases blood levels of calcium
B: is produced by the parathyroid glands
C: stimulates bone resorption
D: inhibits osteoblasts

17:  Parathormone
A: increases glucose production
B: inhibits the action of osteoclasts
C: increases blood calcium levels
D: None of the above

18:  The islets of Langerhans in the pancreas are the site of production of which substance?
A: Calcitonin
B: Insulin
C: Digestive enzymes
D: Thyroxine

19:  Glucagon
A: inhibits the breakdown of glycogen in the liver
B: is a steroid hormone produced by the pancreas
C: decreases blood glucose levels
D: stimulates gluconeogenesis, which elevates blood glucose levels

20:  Diabetes mellitus
A: is a disorder caused by a deficiency in glucagon secretion
B: can be diagnosed in part by decreased glucose levels in the urine
C: is really two diseases with similar symptoms but different causes
D: None of the above

21:  Early-onset diabetes
A: is characterized by normal or above-normal levels of insulin
B: is commonly associated with obesity
C: results from a deficiency in insulin production
D: has symptoms very different from late-onset diabetes

22:  The hormone adrenalin
A: is the same as noradrenalin
B: increases blood flow to the small intestine
C: increases blood circulation and oxygen supplies to the muscle
D: All of the above
E: None of the above

23:  The adrenal cortex
A: produces adrenalin
B: is controlled by nerve impulses
C: produces sex steroids, mineralocorticoids, and glucocorticoids
D: None of the above

24:  Cortisol
A: stimulates the synthesis of protein
B: decreases blood glucose by stimulating the synthesis of glucose from amino acids
C: increases blood glucose levels
D: None of the above

25:  Which of the following diseases is characterized by a decline in adrenal cortical secretion?
A: Addison's disease
B: Cushing's syndrome
C: Diabetes
D: None of the above

Optional: Enter your name and your instructor's E-mail address to have your results E-mailed to him or her.
Your Name:
Instructor's E-mail Address:
Your E-mail Address: