Cholesterol is a precursor of _________. 1. Aldosterone 2. Cortisol 3. Testosterone 4. Estrogen 5. All...
Cholesterol is a precursor of _________.
1. Aldosterone
2. Cortisol
3. Testosterone
4. Estrogen
5. All of the above are correct
Homework Answers
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Cholesterol is a precursor of _________.
1. Aldosterone
2. Cortisol
3. Testosterone
4. Estrogen
5. All...
Identify structural difference(s) between cholesterol and testosterone. OH CH CH . CH CH3 ** HO Cholesterol...
Identify structural difference(s) between cholesterol and testosterone. OH CH CH . CH CH3 ** HO Cholesterol Testosterone I. X That's not right. Cholesterol and testosterone have different groups connected to C-3 of the A-ring. Cholesterol and testosterone have different groups connected to C-17 of the D-ring. Cholesterol and testosterone have different groups connected to C-19 in the A-ring. The B-ring of cholesterol contains a carbon-carbon double bond between C-5 and C-6, whereas the A-ring of testosterone has a carbon-carbon double...
Cortisol function in target tissues can be INHIBITED via all of the following ways EXCEPT: Preventing...
Cortisol function in target tissues can be INHIBITED via all of the following ways EXCEPT: Preventing release from binding to transcortin (plasma protein) Increasing intake of cholesterol (via LDL receptor) into adrenal cortex cells Inhibiting ACTH secretion Preventing binding to glucocorticoid receptor Inhibiting CRH production ACTH has a major role in stimulating the production of _____ in the adrenal cortex: Epinephrine Aldosterone Cortisol Adrenal androgens All of the above A and B C and D The adrenal cortex is responsible...
In female mice, both the glucocorticoid (cortisol) receptor and the estrogen receptor are expressed in liver...
In female mice, both the glucocorticoid (cortisol) receptor and the estrogen receptor are expressed in liver cells (hepatocytes). The control element to which the glucocorticoid receptor binds is a short-strip of DNA that can accommodate the binding of the glucocorticoid receptor dimer. This control element is called a glucocorticoid response element (GRE). It is located1000 bp downstream from the poly-A site for the PEPCK gene. When this gene is activated by cortisol, it helps the hepatocyte to release glucose into...
HORMONE TABLE ASSIGNMENT ACTION HYPERACTIVITY UNDERACTIVITY HORMONE ORGAN HYPOTHALAMUS 1. GnRH 2. CRH 3. TRH 4. GHR...
HORMONE TABLE ASSIGNMENT ACTION HYPERACTIVITY UNDERACTIVITY HORMONE ORGAN HYPOTHALAMUS 1. GnRH 2. CRH 3. TRH 4. GHRH 5. PIF 6. Oxytocin 7. ADH 8 PITUITARY GH 9. TSH 10. ACTH 11 FSH 12. LH 13. Prolactin 14. MSH PINEAL 15. Melatonin THYROID 16. Thyroxine 17. Calcitonin PARATHYROID 18. PTH THYMUS 19. Thymosine 20. Epinephrine/Nor ADRENAL MEDULLA ADRENAL CORTEX Cortisol 21. 22. Aldosterone 23. DHEA 24. Glucagon PANCREAS 25. Insulin TESTES 26. Testosterone 27. Inhibin OVARIES 28. Estrogen 29. Progestorone SKIN...
Which of the following are characteristics of cholesterol? 1) It is a weakly amphipathic, rigid substance....
Which of the following are characteristics of cholesterol? 1) It is a weakly amphipathic, rigid substance. 2) It is the precursor for all steroidal hormones. 3) It packs neatly with the fatty acid tails of membrane bilayers. 4) It is part of the lipid family of biomolecules. Multiple answers are correct.
The role of very low density lipoproteins is 1. Scavenging the cholesterol from cell membranes 2....
The role of very low density lipoproteins is 1. Scavenging the cholesterol from cell membranes 2. Transporting of lipids from liver to tissues 3. Transporting of cholesterol esters to the liver 4. Both A and B are correct 5. All of the above are correct
5. The anabolic state is characterized by: 1. Lipogenesis 2. Gluconeogenesis 3. Ketogenesis 4. All.of the...
5. The anabolic state is characterized by: 1. Lipogenesis 2. Gluconeogenesis 3. Ketogenesis 4. All.of the above 5. None of the above 6. Cortisol: a. Acts on muscle to promote catabolism of protein b. Acts on fat to promote lipolysis c. Acts on the liver to promote gluconeogenesis d. All of the above e. None of the above
1.The thyroid gland: E shrinks when a person has goiter, which is caused by an iodide...
1.The thyroid gland: E shrinks when a person has goiter, which is caused by an iodide deficiency. ㄷ produces thyrotropin-releasing hormone. ㄷ sequesters iodide from the diet, and synthesizes thyroxine and E stores thyroxine for up to months in the thyrotropes. 2. Increasing the concentrations of which of the following would cause the largest increase in calcium concentrations in the extracellular fluid? activating osteoblasts tE increasing the plasma concentrations of parathyroid hormone and calcitonin ㄷ activating the chondrocytes ㄷ increasing...
1.The thyroid gland: shrinks when a person has goiter, which is caused by an iodide deficiency....
1.The thyroid gland: shrinks when a person has goiter, which is caused by an iodide deficiency. produces thyrotropin-releasing hormone. sequesters iodide from the diet, and synthesizes thyroxine and T3. produces thyroid-stimulating hormone. stores thyroxine for up to months in the thyrotropes. 2. Increasing the concentrations of which of the following would cause the largest increase in calcium concentrations in the extracellular fluid? activating osteoblasts increasing the plasma concentrations of parathyroid hormone and calcitonin activating the chondrocytes increasing the plasma concentrations...
21. Which property has not been observed for membrane proteins? a. energy storage b. transport of...
21. Which property has not been observed for membrane proteins? a. energy storage b. transport of substances into and out of the cell catalysis (enzymatic activity) acting as a receptor c. d. 22. In the fluid mosaic model of membrane structure the proteins are specifically bonded to the lipids b. a. the proteins "float" in the lipid bilayer the proteins are sandwiched between the lipid molecules c. d. the lipids are sandwiched between the protein molecules 23. All steroids contain...
Identify structural difference(s) between cholesterol and testosterone. OH CH CH . CH CH3 ** HO Cholesterol Testosterone I. X That's not right. Cholesterol and testosterone have different groups connected to C-3 of the A-ring. Cholesterol and testosterone have different groups connected to C-17 of the D-ring. Cholesterol and testosterone have different groups connected to C-19 in the A-ring. The B-ring of cholesterol contains a carbon-carbon double bond between C-5 and C-6, whereas the A-ring of testosterone has a carbon-carbon double...
HORMONE TABLE ASSIGNMENT ACTION HYPERACTIVITY UNDERACTIVITY HORMONE ORGAN HYPOTHALAMUS 1. GnRH 2. CRH 3. TRH 4. GHRH 5. PIF 6. Oxytocin 7. ADH 8 PITUITARY GH 9. TSH 10. ACTH 11 FSH 12. LH 13. Prolactin 14. MSH PINEAL 15. Melatonin THYROID 16. Thyroxine 17. Calcitonin PARATHYROID 18. PTH THYMUS 19. Thymosine 20. Epinephrine/Nor ADRENAL MEDULLA ADRENAL CORTEX Cortisol 21. 22. Aldosterone 23. DHEA 24. Glucagon PANCREAS 25. Insulin TESTES 26. Testosterone 27. Inhibin OVARIES 28. Estrogen 29. Progestorone SKIN...
5. The anabolic state is characterized by: 1. Lipogenesis 2. Gluconeogenesis 3. Ketogenesis 4. All.of the above 5. None of the above 6. Cortisol: a. Acts on muscle to promote catabolism of protein b. Acts on fat to promote lipolysis c. Acts on the liver to promote gluconeogenesis d. All of the above e. None of the above
1.The thyroid gland: E shrinks when a person has goiter, which is caused by an iodide deficiency. ㄷ produces thyrotropin-releasing hormone. ㄷ sequesters iodide from the diet, and synthesizes thyroxine and E stores thyroxine for up to months in the thyrotropes. 2. Increasing the concentrations of which of the following would cause the largest increase in calcium concentrations in the extracellular fluid? activating osteoblasts tE increasing the plasma concentrations of parathyroid hormone and calcitonin ㄷ activating the chondrocytes ㄷ increasing...
21. Which property has not been observed for membrane proteins? a. energy storage b. transport of substances into and out of the cell catalysis (enzymatic activity) acting as a receptor c. d. 22. In the fluid mosaic model of membrane structure the proteins are specifically bonded to the lipids b. a. the proteins "float" in the lipid bilayer the proteins are sandwiched between the lipid molecules c. d. the lipids are sandwiched between the protein molecules 23. All steroids contain...
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