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BIO 256 EXAM 2 QUESTIONS AND VERIFIED ANSWERS LATEST UPDATE ALREADY GRADED A+
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BIO 256 EXAM 2 QUESTIONS AND VERIFIED ANSWERS LATEST UPDATE ALREADY GRADED A+
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BIO 256 EXAM 2 QUESTIONS AND VERIFIED ANSWERS 2024 -2025 LATEST UPDATE ALREADY GRADED A+ ERV + RV = - ANSWER>>>Functional residual capacity Where in the nephron does most solute reabsorption occur? - ANSWER>>>C) proximal convoluted tubule Approximately 80% of the energy used for active transport is devoted to the reabsorption of - ANSWER>>>A) sodium What is the juxtaglomerular apparatus? - ANSWER>>>A) a system that regulates the rate of filtrate formation and systemic blood pressure Which of the following substances is not normally found in filtrate? - ANSWER>>>C) blood cells and large particles A nonfasting urine sample from an individual who has previously ingested donuts and a soft drink showed the presence of sugar (glucose). Which of the following statement explains the presence of the glucose in the urine? - ANSWER>>>D) The individual exceeded the transport maximum. Which part of the brain controls the micturition reflex? - ANSWER>>>C) pons The ________ keeps the urethra closed whe n urine is not being passed from the bladder and prevents leaking between voiding - ANSWER>>>A) internal urethral sphincter Which of the following acts as the trigger for the initiation of micturition (voiding)? - ANSWER>>>A) the stretching of the bladder wall Select the correct statement about urinary system development - ANSWER>>>C) Kidneys develop from urogenital ridges. Which of the following is NOT a function of the kidneys? - ANSWER>>>A) producing the hormones melanin and oxytocin Which of the fol lowing is not associated with the renal corpuscle? - ANSWER>>>B) a vasa recta The ________ artery lies on the boundary between the cortex and medulla of the kidney - ANSWER>>>A) arcuate The glomerulus differs from other capillaries in the body in that it - ANSWER>>>D) is drained by an efferent arteriole The renal corpuscle is made up of - ANSWER>>>B) Bowman's capsule and glomerulus The filtration membrane includes all except - ANSWER>>>B) renal fascia The macula densa cells respond to - ANSWER>>> C) changes in solute content of the filtrate Select the correct statement about the nephrons - ANSWER>>>A) The parietal layer of the glomerular capsule is simple squamous epithelium. Which of the following is not a part of the juxtaglomerular apparatus? - ANSWER>>>D) podocyte cells Which of the choices below is the salt level -monitoring part of the nephron? - ANSWER>>>B) macula densa Which cells of the kidney are chemoreceptors that respond to changes in solute content of the filtrate? - ANSWER>>>A) mac ula densa cells The fatty tissue surrounding the kidneys is important because it - ANSWER>>>A) stabilizes the position of the kidneys by holding them in their normal position The functional and structural unit of the kidneys is the - ANSWER>>>B) nephron Which of the following does not describe the juxtaglomerular complex? - ANSWER>>>A) Its macula densa cells produce aldosterone. What is the most direct function of the juxtaglomerular apparatus? - ANSWER>>>D) help regulate blood pressure and the rate of blood filtration by the kidneys Which of the following is the functional unit of the kidney? - ANSWER>>>A) nephron The ________ collect(s) urine, which drains continuously from the papillae; the urine is then emptied into the ________ - ANSWER>>>B) calyc es; renal pelvis Each nephron contains a ________, which is a tuft of capillaries, and a ________ - ANSWER>>>B) glomerulus; renal tubule What arteries branch off the arcuate arteries? - ANSWER>>>A) cortical radiate (interlobular) arteries Which vessel is present in the arterial pathway as blood flows into the kidney but NOT present in the venous pathway exiting the kidney? - ANSWER>>>C) segmental Which vessels supply the cortical tissue of the kidney with blood? - ANSWER>>>A) cortical radi ate arteries What two structures constitute the renal corpuscle? - ANSWER>>>C) glomerulus and glomerular (Bowman's) capsule Which of the three parts of the renal tubule is formed by cuboidal epithelial cells bordered by dense microvilli? - ANSWER>>>D) pr oximal convoluted tubule In which kidney region are all renal corpuscles located? - ANSWER>>>D) renal cortex Which of the following is NOT characteristic of the cortical nephrons? - ANSWER>>>C) The glomerulus of the cortical nephron is closer to the cortex-medulla junction. Where does the efferent arteriole of the juxtamedullary nephron carry blood to? - ANSWER>>>A) vasa recta Which capillary bed produces filtrate? - ANSWER>>>A) glomerulus What is the function of the macula densa cells of the juxtaglom erular complex (JGC)? - ANSWER>>>D) The macula densa cells monitor the NaCl content of the filtrate entering the distal convoluted tubule. Where is filtrate produced in the nephron? - ANSWER>>>C) glomerulus What vessel directly feeds into the glomerulus? - ANSWER>>>A) afferent arteriole The mechanism that establishes the medullary osmotic gradient depends most on the permeability properties of the - ANSWER>>>A) loop of Henle An increase in the permeability of the cells of the collecting tubule to water is due to a(n) - ANSWER>>>B) increase in the production of ADHThe benefits of buying summaries with Stuvia:
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