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The Endocrine System Test

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The Endocrine System Test

Biology 12 (SBI4U) Unit 4 – Homeostasis The Endocrine System Test

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Question 1 of 27
1. Question
1 point(s)
Category: K/U
1. Which of the following statements about hormones is incorrect?
- a) They are produced by glands such as the thyroid.
- b) They travel to different areas of the body.
- c) They are carried by the blood.
- d) They are used to communicate between different individuals.
- e) They elicit specific biological responses from target cells.
Correct
Incorrect
Question 2 of 27
2. Question
1 point(s)
Category: K/U
2. The hypothalamus controls the anterior pituitary with which of the following?
- a) Releasing factors
- b) Thalamus messenger
- c) Third messengers
- d) Antibodies
- e) Anticoagulants
Correct
Incorrect
Question 3 of 27
3. Question
1 point(s)
Category: K/U
3. Steroid hormones exert their effect by
- a) interacting with receptors on cell membranes.
- b) a direct effect in the nucleus of a cell.
- c) initiating formation of cyclic AMP.
- d) initiating formation of cyclic GMP
- e) none of the above.
Correct
Incorrect
Question 4 of 27
4. Question
1 point(s)
Category: K/U
4. Which of the following endocrine glands is a direct extension of the nervous system?
- a) Anterior pituitary gland
- b) Posterior pituitary gland
- c) Thyroid gland
- d) Thymus gland
- e) Adrenal cortex
Correct
Incorrect
Question 5 of 27
5. Question
1 point(s)
Category: K/U
5. In times of stress, the adrenal gland promotes the synthesis of glucose from noncarbohydrate substrates by secreting which of the following hormone?
- a) glucagon
- b) glucocorticoids
- c) epinephrin
- d) thyroxine
- e) ACTH
Correct
Incorrect
Question 6 of 27
6. Question
1 point(s)
Category: K/U
6. The adrenal medulla secretes which of the following?
- a) Acetylcholine
- b) Cortisol
- c) TSH
- d) Epinephrine
- e) Insulin
Correct
Incorrect
Question 7 of 27
7. Question
1 point(s)
Category: K/U
7. Which type of hormone stimulates other endocrine glands?
- a) neurotransmitter hormone
- b) negative feedback hormone
- c) positive feedback hormone
- d) trophic hormone
- e) tropic hormone
Correct
Incorrect
Question 8 of 27
8. Question
1 point(s)
Category: K/U
8. Metabolic homeostasis concerns the thyroid gland. The thyroid is regulated by feedback loops involving which of the following?
- a) The pituitary gland and two hormones.
- b) The hypothalamus, pancreas, and four hormones.
- c) The hypothalamus, the pituitary, and three hormones
- d) The Islets of Langerhans and three hormones
- e) The adrenal cortex and three hormones
Correct
Incorrect
Question 9 of 27
9. Question
1 point(s)
Category: K/U
10. Which of the following hormones is an example of an steroid hormone?
- a) Insulin
- b) Cortisol
- c) Epinephrine
- d) Thyroxine (T4(
- e) Growth hormone (hGH)
Correct
Incorrect
Question 10 of 27
10. Question
1 point(s)
Category: K/U
10. Which structure(s) is a target of follicle stimulating hormone (FSH)?
1. testes
2. ovaries
3. uterus
- a) i only
- b) i and ii only
- c) i and iii only
- d) ii and iii only
- e) i, ii, and iii
Correct
Incorrect
Question 11 of 27
11. Question
1 point(s)
Category: K/U
11. Which structure(s) secrete the male hormone testosterone?
- a) Anterior pituitary
- b) Interstitial cells of the testes
- c) Hypothalamus
- d) Follicle-stimulating cells of the testes
- e) Luteinizing cells of the testes
Correct
Incorrect
Question 12 of 27
12. Question
1 point(s)
Category: K/U
12. Which hormone is directly responsible for ovulation in a human female?
- a) Luteinizing hormone (LH)
- b) Follicle-stimulating hormone (FSH)
- c) Estrogen
- d) Progesterone
- e) Gonadotropin-releasing hormone
Correct
Incorrect
Question 13 of 27
13. Question
1 point(s)
Category: K/U
13. Which of these is a pair of antagonistic hormones?
- a) insulin and glucagon
- b) thyroid-stimulating hormone (TSH) and thyroxine
- c) Cortisol and human growth hormone (hGH)
- d) epinephrine and norepinephrine
- e) estrogen and progesterone
Correct
Incorrect
Question 14 of 27
14. Question
1 point(s)
Category: K/U
14. Which best explains acromegaly in adults?
- a) Increased production of TSH
- b) Increased production of ACTH
- c) Increased production of ADH
- d) Increased production of hGH
- e) Increased production of FSH
Correct
Incorrect
Question 15 of 27
15. Question
1 point(s)
Category: K/U
15. A reduction in the secretion of estrogen and progesterone leads to
- a) uterine contraction.
- b) the release of an egg.
- c) increased vascularization.
- d) the maturation of a follicle.
- e) the shedding of the endometrium.
Correct
Incorrect
Question 16 of 27
16. Question
1 point(s)
Category: T
16. If the thyroid gland malfunctioned and failed to secrete sufficient thyroxine, you would expect to find an abnormally
- a) small pituitary gland.
- b) high rate of metabolism in the patient.
- c) low concentration of thyrotropic hormone (TSH) in the patient's bloodstream.
- d) high concentration of TSH in the bloodstream.
- e) all of the above
Correct
Incorrect
Question 17 of 27
17. Question
1 point(s)
Category: T
17. Which of the following hormones is correctly paired with its function?
- a) calcitonin – decrease the levels of calcium in the blood
- b) prolactin – causes smooth muscle contraction in the uterus
- c) anti-diuretic hormone – stimulates milk production in the mammary glands
- d) thyroxin – decreases the cellular activities and chemical reactions in the body
- e) thyroid stimulating hormone – stimulates hormone secretions in the parathyroid gland
Correct
Incorrect
Question 18 of 27
18. Question
1 point(s)
Category: T
19. Which of the following raise blood glucose levels?
- a) Cortisol and Insulin
- b) Insulin and Glucagon
- c) Adrenocorticotropic hormone and Glucagon
- d) Cortisol and Glucagon
- e) Aldosterone and Cortisol
Correct
Incorrect
Question 19 of 27
19. Question
1 point(s)
Category: T
19. When is the parathyroid hormone (PTH) produced?
- a) In response to the secretion of thyroxin in the blood
- b) In response to low concentrations of calcium in the blood
- c) In response to high concentrations of calcium in the blood
- d) In response to low concentrations of glycogen in the blood
- e) In response to the hormonal secretions by the thyroid gland
Correct
Incorrect
Question 20 of 27
20. Question
1 point(s)
Category: T
20. Which of the following hormones is released by the posterior pituitary gland?
- a) prolactin (PRL)
- b) antidiuretic hormone (ADH)
- c) human growth hormone (hGH)
- d) thyroid-stimulating hormone (TSH)
- e) adrenocorticotropic hormone (ACTH)
Correct
Incorrect
Question 21 of 27
21. Question
2 point(s)
Category: T
21. During the female reproductive cycle, LH peaks when which one of these occurs?
- a) Pregnancy occurs.
- b) Menstruation occurs.
- c) Fertilization occurs.
- d) Ovulation occurs.
- e) Implantation occurs.
Correct
Incorrect
Question 22 of 27
22. Question
2 point(s)
Category: T
22. At puberty, which one of the following occurs?
- a) The anterior pituitary gland stops secreting LH.
- b) FSH secretion declines.
- c) The level of sex hormones in both sexes declines.
- d) Females no longer produce mature follicles.
- e) The hypothalamus begins secreting GnRH.
Correct
Incorrect
Question 23 of 27
23. Question
2 point(s)
Category: T
22. The adrenal cortex controls long-term stress responses by secreting corticosteroids (mineralocorticoids and glucocorticoids). Examples of long-term effects by corticosteroids include all the following except
- a) retention of water and Na+ ions by kidneys
- b) increased blood volume and blood pressure.
- c) proteins and fats are broken-down and converted to glucose, leading to increase blood glucose.
- d) change in blood flow patterns, leading to increased alertness and decreased digestive and kidney activity.
- e) immune system may be suppressed.
Correct
Incorrect
Question 24 of 27
24. Question
3 point(s)
Category: T
24. Which is an example of an endocrine gland that is not a permanent structure in the human body?
- a) Hypothalamus
- b) Testes
- c) Corpus luteum
- d) Ovary
- e) Anterior pituitary gland
Correct
Incorrect
Question 25 of 27
25. Question
2 point(s)
Category: T
25. Which of the following secretes hormones but is not considered traditional glandular tissue?
- a) Pancreas
- b) Pineal gland
- c) Heart
- d) Testes
- e) Adrenal glands
Correct
Incorrect
Question 26 of 27
26. Question
6 point(s)
Category: C
26. Hormones are regulated in numerous ways. One common method of hormonal regulation is by negative feedback. Discuss the negative feedback loop involved in the response of the thyroid gland to cold.
Correct
Incorrect
Question 27 of 27
27. Question
6 point(s)
Category: C
27. The pituitary gland is made up of the anterior and posterior pituitary. What is the relationship between these two parts of the pituitary gland and the hypothalamus?
Correct
Incorrect

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