Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 44, Problem 7A
Mild vitamin D deficiency can lead to osteoporosis, or reduced bone mineral density. This is thought to be due to an association with increased levels of
a. calcitonin, which leads to an increase in serum Ca2+ and bone loss.
b. PTH, which leads to an increase in serum Ca2+ and bone loss.
c. ADH, which reduces blood pressure and leads to bone loss.
d. insulin, which leads to a decrease in blood glucose and bone loss.
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Chapter 44 Solutions
Biology
Ch. 44.1 - Prob. 1LOCh. 44.1 - Prob. 2LOCh. 44.1 - Prob. 3LOCh. 44.2 - Prob. 1LOCh. 44.2 - Prob. 2LOCh. 44.2 - Prob. 3LOCh. 44.3 - Prob. 1LOCh. 44.3 - Describe the connections between the hypothalamus,...Ch. 44.3 - Prob. 3LOCh. 44.4 - Prob. 1LO
Ch. 44.4 - Describe the components of Ca2+ homeostasis.Ch. 44.4 - Prob. 3LOCh. 44.5 - Prob. 1LOCh. 44.5 - Prob. 2LOCh. 44.5 - Prob. 3LOCh. 44 - Prob. 1DACh. 44 - Prob. 1IQCh. 44 - Which of the following best describes hormones? a....Ch. 44 - Steroid hormones a. can diffuse through the...Ch. 44 - Second messengers are activated in response to a....Ch. 44 - Which of the following is true about lipophilic...Ch. 44 - An organ is classified as part of the endocrine...Ch. 44 - Hormones released from the pituitary gland have...Ch. 44 - Prob. 7UCh. 44 - You think one of your teammates is using anabolic...Ch. 44 - Your Uncle Sal likes to party. When he goes out...Ch. 44 - Prob. 3ACh. 44 - Prob. 4ACh. 44 - Prob. 5ACh. 44 - You experience a longer period than normal between...Ch. 44 - Mild vitamin D deficiency can lead to...Ch. 44 - How can blocking hormone production decrease...Ch. 44 - Suppose that two different organs, such as the...Ch. 44 - Many physiological parameters, such as blood Ca2+...
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- Ketosis is not likely to occur in acromegaly because: a. GH is not lipolytic hormone b. GH inhibits beta oxidation c. GH stimulates lipoprotein lipase d. Most individuals with acromegaly have sufficient insulin production to suppress ketosis.arrow_forwardTumors that affect the pituitary can lead to decreases in some, but not all, hormones released by the pituitary. A patient with such a tumor exhibits fatigue, weight loss, and low blood sugar. This is probably due to lack of production of a. GH, which leads to loss of muscle mass. b. ACTH, which leads to loss of production of glucocorticoids. c. TSH, which leads to loss of production of thyroxin. d. ADH, which leads to excess urine production.arrow_forwardGigantism is a disease that Select one: A. is caused by deficiency of GHRH. B. occurs in adults. C. is characterized by excessive growth of long bones. D. is treated by recombinant growth hormone. E. can lead to hyperpituitarism.arrow_forward
- An increase of insulin level causes A. A decrease in the concentration of blood glucose B. A decrease in the permeability of cell membranes to glucose C. An increase in the production of glucose from glycogen D. None of these 2. Diabetes mellitus is characterized by A. Glucose in the urine B. Excessive urine production C. Dehydration D. All of these 3.Insulin-dependent diabetes mellitus is caused by A. Excess sugar in the diet B. Obesity C. A disorder of the immune system D. An effect of aging 4.Treatment of noninsulin-dependent diabetes mellitus usually involves A. Controlling the diet B. Exercising regularly…arrow_forwardThyroid cancer results when the cells in the thyroid gland divide uncontrollably. Individuals who have excessive exposure to radiation may have higher chance of getting thyroid cancer. Thyroid cancer can be treated through surgery, iodine therapy, radiotherapy, and/or chemotherapy. What is the purpose of prescribing thyroxine medication for patients following the surgical removal of the thyroid gland? Select one: a. to decrease TRH and increase TSH levels b. to increase TRH and TSH levels c. to decrease TRH and TSH levels d. to increase TRH and decrease TSH levelsarrow_forwardWhich of the following hormones increases blood calcium levels?a. calcitonin b. thyroxine (T4)c. parathyroid hormone d. mineralocorticoidarrow_forward
- Calcium ion concentration in the blood decreases whena. vitamin D levels are lower than normal.b. calcitonin secretion decreases.c. PTH secretion increases.d. All of these are correct.arrow_forwardWhich of the following hormones increases blood calcium levels? a. calcitoninb. thyroxine (T4)c. parathyroid hormoned. mineralocorticoidsarrow_forwardHuman growth hormone (hGH) affects many different parts of the body. When hGH is released, it stimulates the liver to produce insulin-like growth factor 1 (IGF-1), which stimulates protein synthesis, muscle development, and bone growth, while suppressing fat storage. If hormone 3 levels increased, what would be the resulting effect on hormone 1 and 2? Select one: a. Hormone 1 Hormone 2 Increase Increase b. Hormone 1 Hormone 2 Decrease Decrease c. Hormone 1 Hormone 2 Decrease Increase d. Hormone 1 Hormone 2 Increase Decreasearrow_forward
- Which of the following outcomes would be most likely to occur due to a vitamin K deficiency? Select one: a. Impaired collagen synthesis at epiphyseal growth plates b. Increased bone mineralization leading to large, deformed bones c. Impaired phosphorus uptake by osteoclasts d. Impaired calcitonin production by thyroid gland e. Impaired Ca2+ uptake by osteoblastsarrow_forwardWhich of the following statements about type 2 diabetes is true? Select one: A. It is an autoimmune disease. B. It is caused by the destruction of pancreatic beta cells. C. It can result in hyperglycemia. D. It is characterized by a lack of insulin production. E. It is caused by a lack of pancreatic alpha cells. Oarrow_forwardVitamin D is the precursor of which of the following hormones? A. Calcitriol B. PTH C. Calcitonin D. Ghrelinarrow_forward
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