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A&P 1 Final Exam, Straighter line Anatomy and Physiology 1, Straighter line A&P 1 Cumulative Final Questions and answers
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What is the smallest level of organization in the body that contains the body's genetic information? Select one: a. chemical b. cellular c. tissue d. organism CORRECT ANSWERS✅ B. Cellular The cellular level includes the nucleus, an organelle that contains the body's genetic information. Which is an example of a normally occurring positive-feedback mechanism? Select one: a. elevated blood pressure during exercise b. increase in heart rate after blood loss c. decrease in blood pressure after blood loss d. stretching of the uterus near the end of pregnancy CORRECT ANSWERS✅ d. stretching of the uterus near the end of pregnancy Which of the following processes generates the most ATP within a human cell? Select one: a. glycolysis b. lactic acid fermentation
c. oxidative phosphorylation d. citric acid cycle CORRECT ANSWERS✅ c. oxidative phosphorylation During DNA replication, how does each template strand eventually become two identical DNA molecules? Select one: a. The two strands form continuously, catalyzed by DNA polymerase. b. The two strands form continuously, catalyzed by DNA ligase. c. One strand forms continuously, the other forms in short segments spliced by DNA polymerase. d. One strand forms continuously, the other forms in short segments spliced by DNA ligase. CORRECT ANSWERS✅ d. One strand forms continuously, the other forms in short segments spliced by DNA ligase. Which is the most superficial layer of skin that is composed primarily of living cells? Select one: a. stratum corneum b. stratum lucidum c. stratum basale d. stratum spinosum CORRECT ANSWERS✅ d. stratum spinosum Which of the following is the definition of a third degree burn? Select one: a. a burn that covers at least 25% of the skin
b. postural c. skeletal d. smooth CORRECT ANSWERS✅ d. smooth Which sentence best describes the sliding filament model of muscle contraction? Select one: a. Actin and myosin filaments remain stationary. b. Actin and myosin myofilaments shorten. c. Sarcomeres and myofibrils contract. d. Sarcomeres and myofibrils lengthen. CORRECT ANSWERS✅ c. Sarcomeres and myofibrils contract. doctor performing an autopsy on a patient concludes that part of the brain was likely damaged by trauma due to a large population of which type of cell? Select one: a. Schwann cells b. microglia c. oligodendrocytes d. ependymal cel CORRECT ANSWERS✅ b. microglia What type of axons is found in a gray ramus comunicans? Select one: a. myelinated, pre-ganglionic axons
b. myelinated, post-ganglionic axons c. unmyelinated, pre-ganglionic axons d. unmyelinated, post-ganglionic axons CORRECT ANSWERS✅ d. unmyelinated, post-ganglionic axons Which class of chemical messengers is secreted by neurons into synaptic clefts to activate an adjacent cell? Select one: a. autocrine b. endocrine c. neurotransmitter d. paracrine CORRECT ANSWERS✅ c. neurotransmitter The targeted response of the hormone lipotropin is an increase in which of the following? Select one: a. the breakdown of fat in adipose tissues b. the breakdown of lipids and release of fatty acids from cells c. the production of milk in lactating women d. the secretion of thyroid hormone CORRECT ANSWERS✅ a. the breakdown of fat in adipose tissues The articulations between the radius and ulna that allow for rotation of the forearm is an example of a(n) _________ joint. A. plane
Which of the following special senses experiences the least amount of decline as an individual ages? A. olfactory B. balance C. visual D. auditory CORRECT ANSWERS✅ A. olfactory The study of the external form of the body and its relationship to deeper structures is Select one: a. systemic anatomy. b. regional anatomy. c. molecular biology. d. microbiology. e. surface anatomy CORRECT ANSWERS✅ e. surface anatomy There are more microbial cells than human cells in your body and the health of this microbiota clearly influences human well-being. How many microbes are there?. Select one: a. For every cell in your body, there are ten microbial cells. b. For every cell in your body, there are one hundred microbial cells. c. For every cell in your body, there are one thousand microbial cells.
d. For every cell in your body, there are ten thousand microbial cells. CORRECT ANSWERS✅ a. For every cell in your body, there are ten microbial cells. An anatomic image created from sound waves is a Select one: a. radiograph. b. CT scan. c. MRI. d. sonogram CORRECT ANSWERS✅ d. sonogram A major limitation of radiographs is that they Select one: a. can only visualize bone. b. give only a flat, two-dimensional image of the body. c. are old technology that do not give good results. d. have very few applications. CORRECT ANSWERS✅ b. give only a flat, two-dimensional image of the body. A tissue is a Select one: a. structure contained within a cell. b. lower level of organization than a cell. c. group of organs that performs specific functions.
b. a structure composed of several tissue types. c. the basic structural unit of all living organisms. d. a group of organs with a common set of functions. e. a group of cells with similar structure and function. CORRECT ANSWERS✅ a. a small structure within a cell. A cell is Select one: a. a small structure within a molecule. b. a structure composed of several tissue types. c. the basic structural unit of living organisms. d. a group of organs with a common set of functions. e. a group of atoms with similar structure and function. CORRECT ANSWERS✅ c. the basic structural unit of living organisms. Microscopic examination of a frozen tissue specimen is an application of which of the following disciplines? Select one: a. histology b. physiology c. gross anatomy d. radiology e. regional anatomy CORRECT ANSWERS✅ a. histology
What system removes nitrogenous waste products from the blood and regulates blood pH, ion balance, and water balance? Select one: a. respiratory b. lymphatic c. cardiovascular d. immune e. urinary CORRECT ANSWERS✅ e. urinary A molecular biologist discovers that if a specific drug effectively treats obesity in mice, what can researchers conclude? Select one: a. If the drug was effective in a large number of mice, it will therefore be effective in humans. b. If the drug was effective in a small proportion of mice, it will be effective in a small proportion of humans. c. The mice have provided a positive control in this experiment that proves the drug is effective in humans. d. The drug is effective in the mouse model; it must still be tested in humans. e. The effect of the drug on mice has no bearing on the effect of the drug on humans. CORRECT ANSWERS✅ d. The drug is effective in the mouse model; it must still be tested in humans.
a. visceral peritoneum (covers organs) b. mesentery c. parietal peritoneum (lines cavity) d. retroperitoneal organs e. peritoneal cavity CORRECT ANSWERS✅ a. visceral peritoneum (covers organs) "Cutting off your nose" would be a section in the _____ plane. Select one: a. coronal b. nasal c. median d. transverse e. sagittal CORRECT ANSWERS✅ a. coronal Which of the following is not a function of the control center within a feedback mechanism? Select one: a. receives and processes information b. controls effectors c. establishes a set point d. detects a change in the value of a variable CORRECT ANSWERS✅ d. detects a change in the value of a variable
Cephalic means Select one: a. toward the middle or midline of the body. b. away from the surface. c. closer to the head. d. closer than another structure to the point of attachment to the trunk. e. toward the back of the body. CORRECT ANSWERS✅ c. closer to the head. The lumbar region is the Select one: a. area in front of the elbow. b. chest area. c. lower back. d. bottom of foot. e. forearm. CORRECT ANSWERS✅ c. lower back. The axillary region is the Select one: a. calf. b. armpit. c. hollow behind the knee. d. neck. e. thigh. CORRECT ANSWERS✅ b. armpit.
b. dark, absorb; light, do not absorb c. light, do not absorb; dark, aborb d. dark, do not absorb; light, do absorb CORRECT ANSWERS✅ a. light, absorb; dark, do not absorb In the reversible reaction, CO2 + H2O ↔ H2CO3 ↔ H+ + HCO3- , a decrease in respiration rate will increase the concentration of CO2 in the blood. What will this do to the amount of H+ in the blood? Select one: a. H+ will increase. b. H+ will decrease. c. H+ will be unchanged. CORRECT ANSWERS✅ a. H+ will increase. Subatomic particles located around the nucleus of an atom are Select one: a. protons. b. electrons. c. neutrons. d. neutrinos. e. photons. CORRECT ANSWERS✅ b. electrons. When ionic compounds dissolve in water, their ions Select one: a. cling tightly together. b. dissociate or separate from one another.
c. lose their charge. d. get lost in the solvent. e. settle to the bottom of the container. CORRECT ANSWERS✅ b. dissociate or separate from one another. All of the synthesis reactions in the body are called Select one: a. catabolism. b. hydrolysis. c. oxidation-reduction. d. anabolism. e. dissociation. CORRECT ANSWERS✅ d. anabolism. The smallest particle of an element that still exhibits the chemical characteristics of that element is a(n) Select one: a. electron. b. atom. c. chemical bond. d. orbital. e. proton. CORRECT ANSWERS✅ b. atom. Chemical substances that dissolve in water or react with water to release ions are known as Select one:
Solution A increases its acidity. This means that the Select one: a. solution is closer to neutrality. b. pH of the solution has increased. c. solution will now accept more protons. d. number of hydrogen ions has decreased. e. number of hydrogen ions has increased. CORRECT ANSWERS✅ e. number of hydrogen ions has increased. Which of the following would be classified as a lipid? Select one: a. cholesterol-a steroid b. alanine-an amino acid c. starch-a polysaccharide d. catalase-an enzyme e. sucrose-a disaccharide CORRECT ANSWERS✅ a. cholesterol-a steroid Which of the following lists includes only monosaccharides that are isomers of one another? Select one: a. glycogen, glucose, sucrose b. starch, glycogen, cellulose c. glucose, fructose, galactose d. ribose, glycogen, glucose
e. deoxyribose, glycogen, starch CORRECT ANSWERS✅ c. glucose, fructose, galactose Consider the following five terms. Which term does not belong with the other four terms? Select one: a. disaccharide b. sucrose c. lactose d. maltose e. glucose CORRECT ANSWERS✅ e. glucose Phospholipids are important components of the plasma membrane. What does "C" represent on the diagram? Select one: a. phosphorus b. oxygen c. nitrogen d. polar (hydrophilic) region e. nonpolar (hydrophobic) region CORRECT ANSWERS✅ c. nitrogen Which of the following is NOT a function of carbohydrates in the body? Select one: a. structural component of DNA