What is Life? A Guide to Biology with Physiology
3rd Edition
ISBN: 9781464157745
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 24, Problem 5MC
Summary Introduction
Introduction:
Sex hormones are the chemicals responsible for regulating sex characteristics; they are all steroids.
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Human chorionic gonadotropin (hCG) hormone is produced by a fertilized egg in order to maintain elevated levels of estrogen and progesterone. hCG is also used to induce ovulation during IVF procedures and is known to stimulate the production of testosterone in the testes. Which of the following hormones has similar functions as hCG?
Select one:
a. FSH
b. Inhibin
c. LH
d. Estrogen
All of the following are true statements except:
Group of answer choices
a. there are at least 16 different prostaglandins.
b. the first prostaglandin was identified in semen.
c. aspirin produces some of its effects by increasing PGE synthesis.
d. PGFs have been used to induce labor and accelerate the delivery of a baby.
Human chronic gonadotrophin (hCG) hormone produced by the fertilized egg in order to maintain elevated levels of estrogen and progesterone. hCG is also used to induce ovulation during IVF procedures and is known to stimulate the production of testosterone in the testes.
Which of the following hormones has a similar function as hCG?
A. LH
B. Estrogen
C. Inhibin
D. FSH
Chapter 24 Solutions
What is Life? A Guide to Biology with Physiology
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- Since the time of the ancient Greeks, it was noticed that one of the side effects of male castration (surgical removal of the testes) was that these individuals never developed Male Pattern Baldness, a fate that otherwise awaits nearly half of all males of European ancestry, 16% before their 30th birthday. This condition is associated with high levels of which hormone? A. Dihydrotestosterone B. Luteinizing hormone C. Inhibin D. Prolactin E. Progesteronearrow_forwardWhich of the following correctly describes the functions of the endocrine system? a. Transport of blood through the body and through the lungs b. Regulation of body functions through hormone secretion c. Regulation of body functions through nerve impulses d. Immunity and returning extra tissue fluid to the blood vesselsarrow_forwardchemical messengers that are synthesized in response to a local stimulus and diffuse to neighboring target cells are a. autocrine b. paracrine c. neurotransmitters d. hormonesarrow_forward
- Which of the following is a product of the rate limiting step of steroid hormone synthesis? a. Estradiol b. Corticosterone c. Progesterone d. Pregnenolonearrow_forwardA hormone crosses the target cell membrane and binds molecules in the cell nucleus to influence gene expression. What type of hormone is this? A. Cholesterol hormone B. Steroid hormone C. Receptor hormone D. Nonsteroid hormonearrow_forwardWhich of the following is not a hormone? a. prolactin b. thymosin c. iodine d. natriuretic peptide e. insulin-like growth factorarrow_forward
- Which of the following best describes hormones? a. Hormones are relatively unstable and work only in the area adjacent to the gland that produced them. b. Hormones are long-lasting chemicals released from glands. c. All hormones are lipid-soluble. d. Hormones are chemical messengers that are released into the environment.arrow_forwardWhich of the following hormones is a steroid? A. Estrogen B. Glucagon C. Insulin D. Oxytocinarrow_forwardThe term “central nervous system” is used to refer to which of the following? a. The brain and spinal cord b. The ventricles that sit at the center of the brain c. Cranial nerves that make direct connections with the brain d. Nerves leaving the spinal cord innervating axial or trunk muscles near the center of the body Which of the following hormones is released by the hypothalamus during stress? a. neuropeptide Y (NPY) b. glucocorticoids (including cortisol) c. adrenocorticotropic hormone (ACTH) d. corticotropin releasing factor (CRF; also called CRH)arrow_forward
- What is the function of the hormone erythropoietin? a. stimulates production of red blood cells b. stimulates muscle growth c. causes the fight-or-flight response d. causes testosterone productionarrow_forwardA hydrophilic peptide hormone is produced in the anterior pituitary gland located at the base of the brain. The hormone targets specific cells in many parts of the body. Which of the following best explains a possible mechanism that would enable the hormone to efficiently reach all the target cells in the body? A. Restate the question and record the right answer. B. Why is this the correct answer?arrow_forwardWhich one of the following hormones does not have intracellular receptors? a. Estrogens b. Cortisol c. Insulin d. Epinephrine e. T3 Gs proteins serve as transducers in the action of: a. Testosterone b. PRL c. GH d. TSHarrow_forward
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