A&P 1 Final Exam Questions And Answers

In a series of measurements of resting transmembrane potentials, the following values were recorded. Which one is likeliest to be an error? A) -70 mV B) -20mV C) -40mV D) +100mV - ANS D) +100 mV Histones are found in... - ANS nucleosomes. The three major subdivisions of extracellular fluid found in the body are plasma, interstitial fluid, and __________. - ANS lymph. The triplet codes needed to specify a specific polypeptide chain are found in the - ANS gene. One mole of any element - ANS has the same number of atoms. During mitosis, chromatids separate into daughter chromosomes during - ANS anaphase. All of the following are true of neurons, except that A) they conduct a nervous impulse B) they are separated from one another by synapses C) they are a very specialized form of connective tissue D) when mature, they lose the ability to divide E) they are composed of a soma and axon - ANS C) they are a very specialized form of connective tissue If a cell has 18 chromosomes and undergoes mitosis how many chromosomes would each daughter cell have? A) cannot be determined B) 9 C) 36 D) 23 E) 18 - ANS E) 18 Two types of vesicular transport include - ANS endocytosis and exocytosis. Which statement best describes osmosis? A) active transport of water across the cell membrane B) diffusion of water from a greater to lesser water concentration across a selectively permeable membrane C)random movement of water due to kinetic energy D) diffusion of water from a greater to lesser water concentration E) movement of water into a solute - ANS B) diffusion of water from a greater to lesser water concentration across a selectively permeable membrane In a dehydration synthesis reaction, compounds - ANS lose water molecules. The genetically programmed death of cells is called - ANS apoptosis. The study of the superficial and internal features in a specific area of the body is called _____ anatomy. - ANS regional Glands that secrete hormones into the interstitial fluid are - ANS endocrine glands. Tissue changes with age include all of the following, except A) thinner epithelia B) proliferation of epidermal cells C) more fragile connective tissues D) less efficient tissue maintenance E) decreased ability to repair tissue damage - ANS B) proliferation of epidermal cells Which one of the following is not one of the four main tissue categories? A) osseous tissue B) muscle tissue C) connective tissue D) epithelial tissue E) neural tissue - ANS A) osseous tissue Tissue that is specialized for contraction is _____ tissue. - ANS muscle Which of the following statements about hydrogen bonds is false? A) Hydrogen bonds are important for holding large molecules together. B) Hydrogen bonds can form between neighboring molecules. C) Hydrogen bonds can occur within a single molecule. D) Hydrogen bonds are responsible for many of the properties of water. E) Hydrogen bonds are strong attractive forces between hydrogen atoms and negatively charged atoms. - ANS E) Hydrogen bonds are strong attractive forces between hydrogen atoms and negatively charged atoms.` This type of feedback exaggerates the effects of variations from normal. - ANS positive The quadrants of the abdominopelvic region include all of the following except: A) pelvic quadrant B) RUQ C) RLQ D) LUQ - ANS a) pelvic quadrant The smallest living unit within the human body is - ANS the cell. Ionic bonds are formed when - ANS an electron or electrons are completely transferred from one atom to another. Unicellular exocrine glands secrete - ANS mucus. Glands that secrete their product by the bursting of cells are - ANS holocrine glands. The tissue that always has a "top" and a "bottom" is - ANS epithelial tissue The mRNA sequence that is complementary to the sequence ATC on DNA is - ANS UAG. A polysaccharide that is formed in liver and muscle cells to store glucose is - ANS glycogen. A DNA nucleotide is composed of - ANS one nitrogen base, deoxyribose sugar, and a phosphate group. When atoms complete their outer electron shell by sharing electrons, they form - ANS covalent bonds. The maintenance of a relatively constant internal environment in an organism is termed - ANS homeostasis. Visceral pericardium is located - ANS on the heart itself. Anatomy is to ___ as physiology is to _____. - ANS structure; function How would the lack of a cofactor for an enzyme affect that enzyme's function? - ANS The enzyme would not be able to function. Which of the following is arranged in correct order form the most complex to the simplest? A) organ, organism, molecular, cellular, tissue, system B) organism, system, organ, tissue, cellular, molecular C) cellular, tissue, molecular, system, organ, organism - ANS B) organism, system, organ, tissue, cellular, molecular