BIO_322_QUIZ_3

BIO_322_QUIZ_3 - BIO 322 QUIZ 3 - SPRING 2009 Question 1...

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BIO 322 QUIZ 3 - SPRING 2009 Question 1 Marks: 1 Which of the following are TRUE ? Choose at least one answer. a . Physiology concerns how anatomical structures and systems work b . Ovaries are anatomical structures c . Endocrinology is the study of glands that make and secrete hormones d. Anatomy is the study of social systems Incorrect Marks for this submission: 0/1. Question 2 Marks: 1 Hormones: Choose at least one answer. a. are chemical substances secreted in one part of an organism that affect other tissues or organs b. have two possible types of effects; inducer/organizational and activational c. can be secreted in the brain d. are not essential to proper sexual functioning e. specifically, steroid sex hormones, are produced in the gonads, adrenal glands and placenta of prenant women and in some cases fat cells. Correct Marks for this submission: 1/1. Question 3 Marks: 1 In regards to steroidogenesis Choose at least one answer. a. 5-alpha-reductase is an enzyme required to convert testosterone to dihydrotestosterone (DHT) b. testosterone is converted to estradiol (estrogen) in the presence of the enzyme aromatase. c. estrogen can be produced in cells such as brain cells and fat cells. d. cholesterol is essential to the formation of sex hormones e. a cell can be be affected by a hormone, provided it has a receptor for that hormone. f. an enzyme is a protein catalyst that speeds up or initiates chemical reactions (e.g. some enzymes can cause molecules to combine to form a new compound) Correct Marks for this submission: 1/1. Question 4 Marks: 1 Which of the following are TRUE ?
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Choose at least one answer. a. Testosterone can cause ones voice to deepen. b. androgens are responsible for the development of pubic and axillary hair. c. Testosterone is neccessary for sperm production. d. Testosterone is involved in growth of the penis at puberty. Correct Marks for this submission: 1/1. Question 5 Marks: 1 Problems in the use of anabolic steroids to enhance athletic performance include: Choose at least one answer. a. high blood pressure b. possible cardiovascular disease c. lowered sperm count (temporary) d. mood swings Correct Marks for this submission: 1/1. Question 6 Marks: 1 Which of the following are TRUE ? Choose at least one answer. a. Progesterone is essential to pregnancy. b. Estrogen is involved in bone maturation. c. In this class we use the terms estrogen and estradiol 17 beta interchangeably. d. Estrogen is responsible for fat distribution during puberty in the female. e. Adult males have more androgen than females. Adult females have more estrogen and progesterone than males. Both sexes have these hormones. Correct Marks for this submission: 1/1. Question 7
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BIO_322_QUIZ_3 - BIO 322 QUIZ 3 - SPRING 2009 Question 1...

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