SCB203   Human A & P   Quiz#1   Fall 2003   Dr. Gottlieb   Pick the best answer!

1. The study of the structure of individual cells is known as:  (a) cytology, (b) histology, (c) embryology, (d) physiology, (e) anatomy

2. Organs are composed of: (a) organ systems, (b) organelles, (c) organisms, (d) tissues, (e) cells

3. The kidneys and urinary bladder are organs of which system? (a) endocrine, (b) digestive, (c) respiratory, (d) lymphatic, (e) urinary

4. Skin, hair,and nails are associated with which system? (a) skeletal, (b) muscular, (c) integumentary, (d) endocrine, (e) none

5. The maintenance of a constant and optimal internal environment in an organism is termed: (a) positive feedback, (b) homeostasis, (c) negative feedback, (d) effector control, (e) integration

6. When the bodyÕs blood glucose level rises, the body initiates physiological changes to decrease the blood glucose level back to the set point, an example of: (a) negative feedback, (b) positive feedback, (c) non-homeostatic regulation, (d) catabolism, (e) pathology

7. The branch of biology that deals with the function of organs and organ systems is known as: (a) mortuary science, (b) anatomy, (c) extrinsic regulation, (d) physiology, (e) homeostasis.

8. The increasingly forceful labor contractions during childbirth are an example of: (a) receptor activation, (b) obfuscation, (c) negative feedback, (d) autoregulation, (e) positive feedback

9. Failure of homeostatic regulation in the body results in: (a) autoregulation, (b) extrinsic regulation, (c) disease, (d) positive feedback, (e) negative feedback

10. Which of these is a characteristic of living things: (a) responsiveness, (b) metabolism and excretion, (c) organization, (d) a and b, (e) a, b, and c

11. The atomic number indicates the number of: (a) protons in an atom, (b) electrons in an ion, (c) neutrons in an atom, (d) protons and neutrons in an atom, (e) neutrons and electrons in an atom.

12. The chemical behavior of an atom is determined by: (a) number of proteins, (b) number of neutrons, (c) number and arrangement of electrons, (d) size of the atom, (e) mass of an atom.

13. Ionic bonds are formed when: (a) atoms share electrons, (b) electrons are completely transferred from one atom to another, (c) a pair of electrons is shared unequally by two atoms, (d) hydrogen forms bonds with negatively charged atoms in the same or different molecule, (e) two or more atoms lose electrons at the same time.

14. In a molecule of nitrogen, three pairs of electrons are shared by two nitrogen atoms; this is an example of: (a) hydrogen bonding, (b) single covalent bond, (c) ionic bonding, (d) double covalent bond, (e) triple covalent bond.

15. Elements that have atoms with full outer shells of electrons: (a) will form many compounds, (b) will normally form anions, (c) will normally form cations, (d) frequently form hydrogen bonds, (e) are inert.

16. AB à A + B is to decomposition as A + B à AB is to: (a) exchange, (b) synthesis, (c) combustion, (d) replacement, (e) metabolism.

17. If a substance has a pH that is greater than 7, it is: (a) neutral, (b) acidic, (c) alkaline, (d) a buffer, (e) a salt.

18. Chemical reactions that require an input of energy, such as heat, are said to be: (a) endergonic, (b) activated, (c) exergonic, (d) neutral, (e) at equilibrium.

19. Which of these is a property of water? (a) solubility, (b) high heat capacity, (c) lubrication, (d) a and b, (e) a, b, and c

20. Which of these statements is true regarding buffers? (a) they stabilize the pH of a solution, (b) their use results in a pH of 0, (c) they are colloids, (d) they supply the activation energy for a chemical reaction, (e) they cause dehydration synthesis.

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