Spring Semester Biology Test 2 2007

Spring Semester Biology Test 2 2007 - 1. We do not know the...

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1. We do not know the function of the following hormone in mammals: (A) ACTH (B) TSH (C) MSH (D) Oxytocin 2. Lipophilic hormones (A) are able to enter target cells (B) are lipid soluble (C) attach to protein receptors and DNA (D) all of the above 3. In the two-messenger system of hormone activity, what is the first messenger? (A) The endocrine gland (B) DNA (C) Cyclic AMP (D) The hormone 4. If your ADH levels are really high, your urine will be (A) Very concentrated (B) Very dilute (C) Full of uric acid (D) Full of ammonia 5. Which of the following pairs is properly matched? (A) Insulin-produced by beta cells of islets of Langerhans in pancreas (B) Aldosterone-produced by adrenal medulla (C) Calcitonin-stimulates oxidative respiration (D) Melatonin-produced by the thymus 6. The target organ(s) for leuteinizing hormone is (are) the (A) Liver (B) Kidney (C) Gonads (D) Pancreas 7. Which of the following statements is false? (A) Hormones from the thyroid gland regulate metabolic rate and calcium levels in the blood.
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(B) The parathyroid gland secretes hormones as part of the fight or flight response. (C) The adrenal cortex hormones regulate glucose, sodium, and potassium levels in the blood. (D) The pineal gland produces melatonin, which is involved in regulating the sleep cycle. 8. What do the anterior and posterior pituitaries have in common? (A) They share a common location below the hypothalamus. (B) They are both connected to each other. (C) They are both endocrine glands. (D) All of the above 9. When an animal has internal fertilization, and the embryos developing inside eggs that stay in the female, it is called (A) Parthenogenesis (B) Ovoviviparity (C) Oviparity (D) Viviparity 10. Mature sperm cells are called (A) Spermatozoa (B) Primary spermatocytes (C) Secondary spermatocytes (D) Spermatids 11. The placenta is derived from both the mother’s uterine lining and the embryo’s (A) Yolk sac (B) Chorion (C) Amnion (D) Allantois 12. What is the function of the acrosome? (A) Provide a swimming mechanism for sperm cells.
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Spring Semester Biology Test 2 2007 - 1. We do not know the...

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