1. Anatomy is a term, which means the study of _____. A) physiology B) structure C) cell functions D) human functions 2. The following are essential needs of the body except which one? A) water B) chemicals C) set point D) pressure 3. The study dealing with the explanations of how an organ works would be an example of _____. A) anatomy B) physiology C) teleology D) cytology 4. The process in which cells and organisms are able to maintain a stable balance of internal and external substances and forces is called _____. A) equilibrium B) adaptation C) adjustment D) homeostasis 5. A decrease in blood glucose that causes the inhibition of insulin is an example of ___________. A) positive feedback B) negative feedback C) abnormal function D) the action of glucagon 6. Which of the following is the most complex level of organization? A) organ system B) macromolecule C) organ D) organelle 7. An electrically charged small negative particle which encircles a nucleus is the _____. A) proton B) neutron C) electron D) positron 8. When atoms react chemically they gain, lose, or share _____. A) protons B) electrons C) neutrons D) atomic weights 9. Ionic bonds tend to form between ____________________. A) atoms that have become electrically, and oppositely, charged B) atoms that share a single pair of electrons C) atoms that share two pairs of electrons D) hydrogen and oxygen atoms that bear weak but opposite charges 10.The nucleus of an atom always has a _____ charge. A) unstable B) positive C) negative D) neutral 11. The second electron shell can hold a maximum of _____ electrons. A) 2 B) 4 C) 6 D) 8 12.Which of these molecular formulas represents a compound? A) H2 B) O2 C) N2 D) C6H12O6 13. The reaction NaCl → Na+ + Cl-, as written, represents what type of reaction? A) synthesis reaction B) decomposition reaction C) exchange reaction D) reversible reaction 14. Electrolytes that release hydrogen ions (H+) in water are called ________________. A) acids B) bases C) salts D) electrically neutral 15. Of the following, which represents an organic compound? A) H2O B) O2 C) nitrous oxide D) C6H12O6 16. Two atoms with the same atomic number but different atomic weights are called _____________. A) elements B) isotopes C) molecules D) radioactive 17. What happens to sodium (Na) when it loses its outer electron to chlorine (Cl)? A) it becomes a negative ion B) it becomes radioactive C) it becomes a positive ion D) nothing 18. A covalent bond is formed whenever two atoms ______ electrons. A) lose B) share C) gain D) keep their 19.Decomposition is the opposite of a _____ reaction. A) synthesis B) ionic C) nuclear D) exchange 20. A solution with a pH of 7.35 is considered to be _____. A) acidic B) neutral C) basic D) normal 21.If a triglyceride were digested it would breakdown into glycerol and _____. A) fatty acids B) nitrogen C) a saccharide D) a lipid 22.Unsaturated fats are comprised of lipids that contain ____. A) nitrogen B) no double bonds C) many hydrogen atoms D) relatively few hydrogen atoms 23. The molecule which contains the genetic information necessary to regulate cells is _____. A) RNA B) DNA C) protein D) ATP 24. Isotopes of the same element vary in the number of _______________ they contain. A) protons B) neutrons C) electrons D) radioactive particles 25. Which of the following is NOT a bulk element A) Carbon (C) B) Nitrogen (N) C) Iron (Fe) D) Chlorine (Cl) 26. A person could have a blood pH of 7.2 and be considered to have excess acidity or acidosis. A) True B) False 27. What is the basic structural unit of the body? A) tissue B) organ C) organelle D) cell 28. The process, which divides the cytoplasm in half, is specifically termed _____. A) karyokinesis B) cytokinesis C) mitosis D) meiosis 29. The ________________ is the source of most of the cellular energy. A) ribosome B) cytosol C) mitochondria D) lysosome 30.Chromosomes are aligned along the equatorial line during the _______ stage of division. A) prophase B) metaphase C) anaphase D) telophase 31. By which process does a glucose molecule move through a cell membrane protein carrier from a region of greater concentration to one of lower concentration? A) simple diffusion B) facilitated diffusion C) active transport D) filtration 32. A cell membrane allows only needed substances to pass and is therefore called ____________________. A) permeable B) passive C) active D) selective 33. The ______________ contains enzymes that are associated with protein synthesis. A) mitochondrion B) ribosome C) lysosome D) Golgi body 34. The _____________ functions to package molecules into vesicles that can be transported out of a cell. A) ribosome B) nucleus C) Golgi apparatus D) centriole apparatus 35. The movement of particles from higher to lower concentration is termed _____________. A) active transport B) dialysis C) diffusion D) osmosis 36. The movement of a salt through a membrane, such as in a kidney, because of pressure differences is called _________________. A) filtration B) dialysis C) diffusion D) active transport Know the following vocabulary words Chapter 1: Anatomy Physiology Homeostasis Nucleus Metabolism Subatomic Particle Atom Organelle Organ Organism Organ System Macromolecule Molecule Tissue Cell Negative Feedback Positive Feedback Receptors Control Center Effectors Chapter 2: Biochemistry Matter Compound Bulk Elements Trace Elements Proton Neutron Electron Atomic Number Atomic Weight Isotope Ionic bond Cation Anion Covalent bond Polar covalent bond Non-polar covalent bond Hydrogen bond Synthesis Decomposition Exchange Reversible Electrolytes Acid Base Ph Neutral Organic Inorganic Carbohydrates Lipids Phospholipids Steroid Proteins Amino Acids Peptide bonds Nucleic Acid DNA RNA Answers 1- B 2- C 3- B 4- D 5- B 6- C 7- C 8- B 9- A 10- B 11- D 12- D 13- B 14- A 15- D 16- B 17- C 18- B 19- A 20- C 21- A 22- B 23- B 24- B 25- C 26- False 27- D 28- B 29- C 30- B 31- B 32- D 33- B 34- C 35- C 36- A