Archives: Quiz

1) how many grams of nacl, m.w. 58.5 daltons, are necessary to make 1 liter of 5% saline? a) 58.5 b) 1 c) 50 d) 6.02 1023 e) 2.9 2) the portions of a neuron that extend off of the […]

1) when eaten, nearly 90% of our dietary calories from fat are in the form of a) steroids. b) phospholipids. c) triglycerides. d) cholesterol. e) fat-soluble vitamins. 2) the major determinant of the resting potential of all cells is a) […]

1) sweat glands contain a) cholinergic receptors. b) alpha-1 receptors. c) alpha-2 receptors. d) beta receptors. e) all of the answers are correct. 2) most products of fat digestion are absorbed by a) capillaries. b) veins. c) lymphatic vessels. d) […]

1) when the baroreceptor reflex is triggered by a decline in blood pressure, a) sympathetic activity increases. b) cardiac output increases. c) peripheral resistance decreases. d) sympathetic activity increases and cardiac output increases. e) sympathetic activity increases, cardiac output increases, […]

1) lipids are hydrophobic, and do not usually dissolve in water. because blood is water-based, the lipid cholesterol is combined with ________ so that it can be transported by blood. a) a hydrophilic molecule b) a hydrophobic molecule c) nothing; […]

1) for a diagnosis of hypertension, a patient must have a) a systolic pressure above 120 mm hg. b) a systolic pressure above 140 mm hg. c) a diastolic pressure above 90 mm hg. d) a diastolic pressure below 80 […]

1) an area of the retina that contains only cones and is the site of sharpest vision is the a) outer segment. b) inner segment. c) fovea. d) optic disc. e) tapetum lucidum. 2) sonja is 28 years old and […]

1) match these terms with their descriptions. a. gray matter b. white matter c. ascending tracts d. descending tracts e. propriospinal tracts carry primarily efferent signals from the brain 2) covalent modulator a. involved in phosphorylation b. cannot be displaced […]

1) in terms of embryonic origin, neurons are most closely related to ________ cells. a) skeletal muscle b) cardiac muscle c) connective tissue d) epithelial 2) an important difference between single-unit and multiunit smooth muscle is the a) numerous gap […]

1) match the structure to its function. a. mouth b. stomach c. rectum d. small intestine e. large intestine protein digestion is completed here. 2) the qrs complex of an ecg corresponds to a) the depolarization of the atria. b) […]

1) a vasectomy prevents which of the following? a) ejaculation b) spermatogenesis c) erection d) formed sperm from entering ejaculate e) ejaculation and spermatogenesis 2) how many grams of glucose, m.w. 180 daltons, is necessary to make 1 liter of […]

1) a condition that produces a reduction in bone mass or density sufficient to compromise normal function is a) cretinism. b) osteoporosis. c) osteomyelitis. d) osteitis. e) acromegaly. 2) the vessels that are the main site of variable resistance in […]

1) cell bodies of sensory neurons are located in a) propriospinal tracts. b) ventral root ganglia. c) ventral horns. d) dorsal horns. e) dorsal root ganglia. 2) type i alveolar cells a) allow rapid diffusion of gases through their thin […]

1) this results when an atom has such a strong attraction for electrons that it pulls one or more electrons completely away from another atom. a. van der waals b. ionic c. hydrogen d. covalent 2) c-reactive protein is a […]

1) the point during an action potential when the inside of the cell has become more positive than the outside is known as the a) depolarization. b) rising phase. c) falling phase. d) overshoot. e) peak. 2) the ion necessary […]

1) match the ganglion cell response to the location of the light stimulus. a. fully excited b. fully inhibited c. weak response light only shines on the surround of an off-surround visual field. 2) the central opening in the eye […]

1) increasing muscle mass and decreasing fat content in your body can increase resting metabolism. why is this? a) because doing so requires exercise and exercising burns calories b) because muscle cells have more mitochondria than fat cells, allowing for […]

1) match each term with its definition. a. cardiac output (co) b. heart rate (hr) c. end-diastolic volume (edv) d. stroke volume (sv) e. end-systolic volume (esv) the volume of blood circulated by the heart in one minute 2) glycolytic […]

1) the concentration of a solution expresses the amount of a) solvent per volume of solute. b) solute per volume of solvent. c) solvent per volume of solution. d) solute per volume of solution. e) none of the answers are […]

1) the majority of hormones in the body are a) peptide hormones. b) steroid hormones. c) amino acid-derived hormones. d) neurohormones. e) all of the hormones are present in equal amounts in the body. 2) match the terms to changes […]

1) which statements apply to the parasympathetic division of the nervous system? a) it is dominant during “resting and digesting.” b) its ganglia are nearby, on or near their target organs. c) epinephrine is the primary neurotransmitter of the parasympathetic […]

1) which of the following is not considered an essential element for a living organism? a) carbon b) hydrogen c) mercury d) oxygen e) nitrogen 2) renal tubule cells in the kidney medulla are constantly exposed to high extracellular osmolarity. […]

1) match the correct subatomic particle with the statement about it. answers may be used once, more than once, or not at all. a. proton(s) b. neutron(s) c. electron(s) 1>an ion has gained or lost ________. 2> isotopes of the […]

1) edema is likely to occur when a) the concentration of protein in the blood increases. b) hemorrhage occurs. c) the heart becomes an insufficient pump. d) blood hydraulic pressure at the capillary decreases. e) the blood hydraulic pressure in […]

1) match each step in urine formation to its description. a. excretion b. filtration c. reabsorption d. secretion movement from the peritubular capillaries to the nephron lumen 2) the portion of the nephron that attaches to the collecting duct is […]

1) the rate of product formation by an enzyme-catalyzed reaction would be increased by a) adding more substrate molecules. b) adding more product molecules. c) reducing the number of enzymes. d) reducing the number of substrate molecules. 2) osmotic pressure […]

1) match the condition with the description. a. acromegaly b. adrenogenital syndrome c. cretinism d. dwarfism e. exophthalmus caused by growth hormone deficiency in childhood 2) which of these has a higher concentration in cerebrospinal fluid than in the blood? […]

1) damage to the fovea of the eye would interfere with the ability to a) focus an image. b) regulate the amount of light striking the retina. c) detect objects in the periphery of ones field of vision. d) detect […]

1) water is a polar molecule, yet it easily moves through the nonpolar portions of cell membranes. which transport process is responsible? a) facilitated diffusion b) simple diffusion c) uniport d) symport e) antiport 2) match each leukocyte to its […]

1) a layer of glycoproteins and a network of fine protein filaments that prevents the movement of proteins and other large molecules from the connective tissue to epithelium describes a) interfacial canals. b) the basal lamina. c) the reticular lamina. […]

1) match the type of breathing with its description. a. hyperpnea b. hyperventilation c. tachypnea d. dyspnea e. apnea difficulty breathing 2) the importance of the plateau phase of the action potential of myocardial cells is in a) preventing overstretching […]

1) a boy who has not passed through puberty sustains an injury to his anterior pituitary such that fsh is no longer released, but lh is normal. after the individual grows to maturity, one would expect that he would a) […]

1) which bases below are purines? 1. adenine 2. cytosine 3. guanine 4. thymine 5. uracil a) 1 and 2 b) 2 and 3 c) 1, 3, and 5 d) 1 and 3 e) 2, 4, and 5 2) the […]

1) the cell that is the progenitor of all the types of blood cells is called the a) pluripotent hematopoietic stem cell. b) committed progenitor cell. c) megakaryocyte. d) reticulocyte. e) progenitor. 2) the gate control theory of pain modulation […]

1) match the response with the type of chemical. a. sympathetic antagonist b. parasympathetic antagonist blocks sweating 2) which of the following is a way to recognize a carbohydrate by looking at its name only? a) it always ends in […]

1) functions of the kidneys include all but one of the following. identify the exception. a) regulation of extracellular fluid volume b) maintenance of ion balance in body fluids c) regulation of blood protein levels d) regulation of blood osmolarity […]

1) match the condition with the description. a. acromegaly b. adrenogenital syndrome c. cretinism d. dwarfism e. exophthalmus caused by growth hormone excess in adulthood 2) when a puppy is scolded “no!” each time he chews on your ficus tree, […]

1) match the lung disease to its description. a. fibrotic lung disease b. emphysema c. asthma d. pulmonary edema increased airway resistance 2) match the part of the neuron to its description (answers may be used more than once). a. […]

1) a typical value for intrapleural pressure is ________ mm hg. a) +6 b) +3 c) 0 d) -3 e) -6 2) antagonistic control of efferent output is typical of the ________ division. a) somatic b) sensory c) autonomic d) […]

1) match the term with its description: a. threshold b. effector c. integrating center d. setpoint e. sensory receptor the desired target value for a parameter 2) during the fasting state, the energy stores of the ________ become the major […]

1) match the condition with its description. a. giantism b. kyphosis c. moon face d. myxedema e. goiter easily observable symptom of hypercortisolism 2) phasic receptors a) are quick to adapt to a particular stimulus intensity. b) slowly decrease the […]

1) joe is playing in an intramural football game when he is tackled so hard that he breaks a rib. he can actually feel a piece of the rib sticking through the skin, and he is having a difficult time […]

1) these are weak attractive forces between the nucleus of one atom and the electrons of another atom close by. a. van der waals b. ionic c. hydrogen d. covalent 2) passive transport refers to a process that requires a) […]

1) a given hormone generally has the same effect on different target tissues. is this statement true or false? defend your answer. 2) indicate true or false. if false, substitute a word or phrase for the boldfaced word(s) that will […]

1) how many bonds does a carbon atom typically form? a.2 b.4 c.6 d.8 2) what bond angle is most closely associated with a tetrahedral distribution of electron density? a.90o b.109.5o c.120o d.180o answer: b 3) which of the following […]

1) although atoms are the smallest unit of an element, relatively few elements can be found in nature as individual atoms. which of the following elements can be found as individual atoms? a.hydrogen b.iron c.krypton d.sulfur 2) in the “ous/ic” […]

1) which of the following correctly represents the electronic configuration of sulfur? a.1s22s22p63s23p4 b.1s22s22p63s23px23py13pz1 c.[ne]3s23p4 d.all of them 2) consider the following reaction involved in carbon dioxide transport in the blood. what happens to this reaction when the partial pressure […]

1) carbonic anhydrase is involved in which of the following? a.binding co2 to hemoglobinc.both a and b b.converting co2 to carbonic acidd.neither a nor b 2) examine the following image representing the structure of a compound. if the larger sphere […]

1) a student is attempting to draw several resonance structures for a species. which of the following is allowed? a.change the connectivities of the nuclei. b.change the number of paired and unpaired electrons. c.both a and b d.neither a nor […]

1) consider the image given below. which of the following is the correct designation for this orbital? a.s b.px c.py d.px e.b, c or d 2) which of the following is the correct lewis dot picture of the nitrogen atom? […]