Archives: Quiz

1) gh a) is secreted by the anterior pituitary. b) is secreted by the posterior pituitary. c) binds to a plasma protein. d) is secreted by the anterior pituitary and binds to a plasma protein. e) is secreted by the […]

1) redistribution of blood flow during exercise results from a) vasodilation only. b) vasoconstriction only. c) vasodilation in skeletal muscle and vasoconstriction in viscera. d) vasoconstriction in skeletal muscle and vasodilation in viscera. 2) which of the following cells is […]

1) match the response to the description. a. increase b. decrease c. no change mean arterial pressure during exercise 2) diacylglycerol is produced from a) cyclic amp. b) phospholipase c. c) a g protein. d) protein kinase a. e) phosphatidylinositol […]

1) match the ganglion cell response to the location of the light stimulus. a. fully excited b. fully inhibited c. weak response diffuse light illuminates both center and surround of on-surround cell. 2) the most important energy-transferring compound in cells […]

1) a viral infection involving the vestibular nuclei may result in a) loss of hearing. b) loss of sight. c) a sense of dizziness. d) local paralysis. e) high blood pressure. 2) which of the following is/are (a) possible treatment(s) […]

1) the depolarization of the pacemaker action potential spreads to adjacent cells through a) gap junctions. b) tight junctions. c) chemical synapses. d) desmosomes. 2) below are results of a blood analysis for a patient undergoing chemotherapy. the left two […]

1) the term cellular (metabolic) energy indicates any biological process requiring a) energy in any form. b) atp. c) thermal energy. d) chemical energy. e) thermal energy and chemical energy. 2) which of the following is a way for solutes […]

1) trace the language pathway of signals from the eye (written words) or the ear (spoken words) to the motor cortex. discuss the two regions of the cortex involved in this pathway. describe their location and the communication problems that […]

1) which of the following could describe the function of 11 beta-hydroxysteroid dehydrogenase? a) an enzyme located in renal tubules that acts on cortisol . b) it converts cortisol to a less active form. c) it aids in preventing crossover […]

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> this particle has a charge of +1 and a mass […]

1) in multiple sclerosis, there is progressive and intermittent damage to the myelin sheath of central axons. one symptom is poor motor control of the affected area. why does destruction of the myelin sheath affect motor control? 2) simple reflexes […]

1) immunoglobulins that attach to mast cells and are involved in allergic reactions are a) iga. b) igd. c) ige. d) igg. e) igm. 2) match the response with the type of chemical. a. sympathetic agonist b. parasympathetic agonist salivation […]

1) the force for glomerular filtration is the a) blood pressure in the glomerular capillaries. b) osmotic pressure in the glomerular capillaries. c) fluid pressure produced by the displacement of the fluid in the lumen of the tubules. d) atp-dependent […]

1) the two divisions of the efferent side of the peripheral nervous system are a) somatic motor neurons and voluntary neurons. b) somatic motor neurons and autonomic neurons. c) the sympathetic and parasympathetic divisions. d) voluntary nervous system and somatic […]

1) inappropriate or excessive immune responses to antigens are a) immunodeficiency diseases. b) autoimmune diseases. c) allergies. d) the result of stress. e) common in the elderly. 2) a fluid sample contains a large amount of iga type antibody. this […]

1) if a 10% sucrose solution is separated from a 20% sucrose solution by a membrane permeable to sucrose, in which direction will net diffusion of sucrose take place? a) from the 10% sucrose solution to the 20% sucrose solution […]

1) transcription of the dna triplet sequence cat will bind to the trna bearing a) cat. b) gta. c) gua. d) atu. 2) differences between arterioles and metarterioles include the fact that arterioles a) have a continuous smooth muscle layer […]

1) pendrin is an anion transporter important in the production of a) parathyroid hormone. b) calcitonin. c) trh. d) tsh. e) thyroid hormone. 2) convective heat loss occurs when a) water evaporates from the skin’s surface. b) warm air rises […]

1) match the lung volume with its description. a. tidal volume b. inspiratory reserve volume c. expiratory reserve volume d. residual volume the additional air inhaled after a normal inspiration 2) the nervous system avoids muscle fatigue during submaximal contraction […]

1) substances that have been isolated from the blood and have been shown to induce sleep have also been linked to the ________ system. a) urinary b) respiratory c) reproductive d) integumentary e) immune 2) ________ is the immunoglobulin class […]

1) a double covalent bond is formed when atoms a) share one pair of electrons (a total of two). b) share two pairs of electrons (a total of four). c) swap two pairs of electrons. d) transfer a pair of […]

1) hydatid mole is a type of pregnancy that, without medical intervention, frequently results in the death of the mother. the hydatid mole is thought to result most often from an abnormality in fertilization, such that the egg has two […]

1) the receptors of equilibrium and hearing are the a) utricles. b) saccules. c) hair cells. d) supporting cells. e) ampullae. 2) match the type of receptor with the appropriate description. a. chemoreceptors b. touch receptors c. thermoreceptors d. nociceptors […]

1) match the lung capacity with its description. a. total lung capacity b. inspiratory capacity c. vital capacity d. functional residual capacity the amount of air inhaled during an active (forced) inspiration 2) skeletal muscle cells are usually attached to […]

1) if blood pressure doubled at the same time that the peripheral resistance doubled, the blood flow through a vessel would be a) doubled. b) halved. c) 16 times greater. d) 1/16 as much. e) unchanged. 2) if adenylyl cyclase […]

1) facilitated diffusion and active transport differ in that a) facilitated diffusion uses cell membrane proteins to move substances, whereas active transport does not. b) facilitated diffusion uses a substrate to bind to a protein carrier, whereas active transport does […]

1) during exercise, the most significant factor affecting the ph of body tissues is the production of a) lactic acid. b) ketone bodies. c) organic acids. d) carbon dioxide. e) hydrochloric acid. 2) blocking afferent action potentials from the chemoreceptors […]

1) place these structures in the order that blood returning to the heart from the body would pass through them. 1> right ventricle 2> left atrium 3> right atrium 4> pulmonary artery 5> left ventricle 6> pulmonary vein a) 4, […]

1) a placebo is a) any drug being tested in a clinical trial. b) any drug in a class of drugs commonly used as pain relievers. c) a drug or treatment that is expected to have no pharmacological effect. d) […]

1) usually, cytokine binding activates a) jak kinase. b) tyrosine kinase. c) intrinsic transducers. d) calmodulin kinase. e) citrulline kinase. 2) the falling phase of the action potential is due primarily to a) na+ flow in the cell only. b) […]

1) ________ hearing loss results from conditions that affect the ability of sound wave that have entered the external ear from generating/transmitting a vibration that will reach the cochlea. 2) which of the following acts as the earliest form of […]

1) exercise hyperventilation results from signals from a) muscle and joint mechanoreceptors and proprioceptors only. b) the carotid body chemoreceptors only. c) activating pulmonary stretch receptors only. d) muscle and joint mechanoreceptors and proprioceptors and from the carotid body chemoreceptors. […]

1) the type of protein found in gap junctions is the a) claudin. b) occludin. c) cadherin. d) connexin. e) integrin. 2) in the lever system that characterizes the interaction between bones and muscle, the bones act as the ________ […]

1) soluble in water a. fibrous b. globular 2) which of the following is a common feature of soluble proteins? a) structural support b) noncovalent interaction c) receptor binding d) chemical modulation e) all of the answers are correct. answer: […]

1) match the disease with the description. a. addison’s disease b. cushing’s disease c. graves’ disease d. paget’s disease involves endocrine stimulation by antibodies 2) opening a na+ channel in a non-neural sensory receptor cell would cause that cell to […]

1) cytokines function by a) acting as messengers for growth and activity of other cells. b) poisoning and killing invading cells. c) digesting invading cells. d) acting as messengers for growth and activity of other cells and poisoning and killing […]

1) ion concentrations are first significantly affected after ________ action potential(s). a) one b) a few dozen c) a few hundred d) a few thousand e) a few million 2) the medical term for heart attack is a) heart failure. […]

1) the addition of a phosphate group to a substrate is called ________. the enzyme that catalyzes this reaction is referred to as a ________. a) proteolysis; phosphatase b) phosphorylation; phosphatase c) proteolysis; kinase d) phosphorylation; kinase 2) match the […]

1) which cell is incorrectly matched with the characteristic? a) eosinophils – numbers increase with allergies and parasites b) eosinophils – cytotoxic cells may live only 6-12 hours c) basophils – have granules containing histamine and heparin d) neutrophils – […]

1) a reversible reaction is one where a) there are large changes in the net free energy from substrate to product. b) there are small changes in the net free energy from substrate to product. c) there is no change […]

1) compared to arteries, the velocity of flow of the blood through the capillaries is a) at least 10 times faster. b) at least twice as fast. c) about the same. d) much slower. e) impossible to predict without more […]

1) swelling and soreness of the lymph nodes indicate that a) immune cells are fighting infection. b) the immune system is incapable of working. c) dangerous cancerous changes are occurring in the immune system. d) too much or improper exercise […]

1) these degrade long chain fatty acids and toxic foreign molecules. a. endoplasmic reticulum b. golgi apparatus c. lysosomes d. mitochondria e. peroxisomes 2) a glomerulus is a) the expanded end of a nephron. b) a “knot” of capillaries that […]

1) match these brain areas with their locations. a. primary somatic sensory cortex b. visual cortex c. auditory cortex d. association areas occipital lobe 2) an excitatory postsynaptic potential (epsp) a) depolarizes a neuron, decreasing the likelihood of an action […]

1) there is clear evidence that strenuous exercise on a regular basis enhances the immune system. a) true b) false 2) the following is a list of several levels of organization that make up the human body. 1> tissue 2> […]

1) crossover effects are sometimes seen among a) most hormones. b) all hormones. c) peptide/protein hormones. d) steroid hormones. 2) match the terms to changes presented, assuming a resting membrane potential of -70 mv. answers may be used once, more […]

1) the brain and spinal cord together compose the a) central nervous system. b) autonomic division system. c) somatic motor division of the nervous system. d) peripheral nervous system. e) visceral nervous system. 2) if a scientific opinion has been […]

1) protective reflexes of the lungs include a) coughing. b) bronchoconstriction. c) bronchodilation. d) bronchodilation and coughing. e) coughing and bronchoconstriction. 2) when more action potentials arrive at the axon terminal, how is the postsynaptic cell affected? a) neurotransmitter release […]

1) classify each scenario below as to primarily which type of work is being done. a. chemical work b. transport work c. mechanical work maintaining a concentration gradient across a membrane 2) match the structure to its description. a. muscle […]

1) which of the following can be measured to determine a person’s metabolic rate? a) only heat released from body in sealed chamber b) only oxygen consumed by body in sealed chamber c) only carbon dioxide produced by body in […]