Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
10th Edition
ISBN: 9780133922851
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Question
Chapter 45, Problem 10TYU
Summary Introduction
To interpret the data: To find the abnormal activity of pituitary or adrenal gland in a patient who used dexamethasone drug.
Concept introduction:
The adrenal cortex acts through the endocrine system under the stressful conditions, such as reduced level of blood sugar, volume and pressure. It stimulates the hypothalamus to secrete the releasing hormone. Then the releasing hormone stimulates the secretion of adrenocorticotropic hormone (ACTH) from the anterior pituitary. From the pituitary ACTH reaches the adrenal cortex through blood circulation and stimulates corticosteroids secretion. Two types of corticosteroids found in humans namely, glucocorticoids (cortisol) and mineralocorticoids. Glucocorticoids or cortisol activates glucose synthesis from protein are also involved in the breakdown of proteins into amino acids in muscles.
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4. Sugar control: Describe how the body regulates blood glucose levels. In your answer
include: the name of the organ/ and cell type and hormones primarily responsible for
the control and how the release of the hormone will effect blood sugar levels
High (Name: 2.
Detector(organ/ and cell type)
Compensation: Hormone:
Homeostasis
Low (Name:
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help
c. Draw a picture comparing and contrasting how each might cause its target cell to do this. Don't look it up! You have all the information you need from the notes to come up with a reasonable, logical hypothesis.
d. If somebody develops hyperparathyroidism (the parathyroid glands produce too much PTH), do you expect that person's blood levels of calcium to be too high or too low as a result? Explain.
e. If somebody develops hyperparathyroidism, will their bones gain or lose density?
Chapter 45 Solutions
Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
Ch. 45.1 - How do response mechanisms in target cells differ...Ch. 45.1 - Prob. 2CCCh. 45.1 - Prob. 3CCCh. 45.2 - What are the roles of oxytocin and prolactin in...Ch. 45.2 - How do the two fused glands of the pituitary gland...Ch. 45.2 - WHAT IF? 2192 Propose an explanation for why...Ch. 45.2 - what if? Lab tests of two patients, each...Ch. 45.3 - If a hormone pathway produces a transient response...Ch. 45.3 - Prob. 2CCCh. 45.3 - Prob. 3CC
Ch. 45 - Prob. 45.1CRCh. 45 - Prob. 45.2CRCh. 45 - Prob. 45.3CRCh. 45 - Which of the following is not an accurate...Ch. 45 - Prob. 2TYUCh. 45 - Growth factors are local regulators that (A) are...Ch. 45 - Prob. 4TYUCh. 45 - Prob. 5TYUCh. 45 - Which of the following is the most likely...Ch. 45 - The relationship between the insect hormones...Ch. 45 - DRAW IT In mammals, milk production by mammary...Ch. 45 - Prob. 9TYUCh. 45 - Prob. 10TYUCh. 45 - Level 3: Synthesis/Evaluation 11. WRITE ABOUT A...Ch. 45 - Prob. 12TYU
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- Understand Main Ideas 1. MAINIDEA Assess the reasons why hormone feedback systems are referred to as "negative feedback." 2. Predict when you would expect to find high levels of insulin in a person's blood and when you would expect to find high levels of glucagon in a per- son's blood.arrow_forwardThe image below shows how the human body and the endocrine system controls the level of blood sugar. a) Explain how the cells communicate with one another.arrow_forward1.) What is the functions of hormones 2.) What is stress response 3.) describing the role or hormones usch as thyroxine, ADH, PTH, calcitonin etc. 4.) applying knowledge of metabolic roles of hormones to new situations and predicting the effect on homeostasis 5.) positive and negative feedback looparrow_forward
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- Functions of Various Hormones 1. Increases water reabsorption in the kidney tubules 2. Promotes the reabsorption of sodium by the kidneys to increase water reabsorption 3. Regulates secretion of hormones by anterior pituitary gland 4. Stimulates mitosis and promotes bone and muscle growth 5. Raises blood glucose level in response to long-term stress 6. Triggers fight-or-flight response for short-term stress Match four of the functions numbered above with the rmones given below. Function: Antidiuretic Hormone: Cortisol Aldosterone Epinephrine hormonearrow_forward1. Compare and contrast neurotransmitters and hormones. List the sources of control of hormone levels. Explain negative feedback and its role in controlling hormone levels. SOPY Discuss why the use of anabolic steroids should be outlawed for performance enhancement. goisarrow_forwardExplain the image and what’s going on.arrow_forward
- The hormone insulin enhances the transport of glucose (sugar) from the blood into most body cells. Its secretion is controlled by a negative-feedback system between the concentration of glucose in the blood and the insulin-secreting cells. Therefore, which of the following statements is correct? A decrease in blood glucose concentration stimulates insulin secretion, which in turn further towers blood glucose concentration. An increase in blood glucose concentration stimulates insulin secretion, which in turn lowers blood glucose concentration. A decrease in blood glucose concentration stimulates insulin secretion, which in turn increases blood glucose concentration. An increase in blood glucose concentration stimulates insulin secretion, which in turn further increases blood glucose concentration. None of the preceding is correct.arrow_forward37. Which is not TRUE in the following statements? * a. Hormones affect various processes in the body as they regulate and balance the functioning of organs, tissues, and cells. b. Hormones greatly influence growth, appearance, emotions, and reproductive functions. c. Hormones play an essential role in the occurrence of disorders such as diabetes, thyroid disease, growth and/or sexual dysfunction. O d. Too much secretion of hormones does not affect homeostasis. 39. Which of the following statements best explains the Theory of Natural Selection? * a. Organs that are not used may disappear while organs that are constantly used may develop. b. In nature, the organisms with desirable characteristics may survive while those with weaker traits may not. O c. Organisms develop desirable structures to survive in a given environment. d. Acquired characteristics of parents can be passed on to offsprings. оо O Oarrow_forwardFunctions of Various Hormones 1. increases calcium levels in the blood 2. lowers calcium levels in the blood 3. stimulates contraction of the smooth muscles of the uterus and breasts 4. increases metabolic rate and regulates growth and development 5. lowers blood sugar levels by stimulating uptake of glucose by cells and conversion of glucose to glycogen in liver and muscles 6. increases blood sugar levels by stimulating the conversion of glycogen to glucose Match four of the functions numbered above with the hormones given below. Function: Parathyroid Hormone: Calcitonin Thyroxine Glucagon Hormonearrow_forward
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