BIO 141 FINAL EXAM PRACTICE QUESTIONS WITH COMPLETE SOLUTIONS

BIO 141 FINAL EXAM PRACTICE QUESTIONS WITH
COMPLETE SOLUTIONS




1) Pancreatic juices are secreted into the _________.
A. Stomach
B. Small intestine
C. Large intestine
D. Gallbladder -- Answer ✔✔ B. Small intestine (CCK stimulates release of
pancreatic juice from pancreas into the pancreatic duct and into the
duodenum)



2) What major urinary structure is immediately after the nephron?
A. Urethra
B. Bladder
C. Ureter
D. Glomerulus -- Answer ✔✔ C. Ureter



3) Which of the following processes involves the movement of molecules into the
body?
A. Filtration
B. Secretion
C. Reabsorption
D. Tubular secretion -- Answer ✔✔ C. Reabsorption

, 4) Which of the following structures is best described as a capillary bed?
A. Glomerulus
B. Loop of Henle
C. Ureter
D. Bowman's capsule -- Answer ✔✔ A. Glomerulus



5) Does the osmolarity of the filtrate change from the beginning to the end of the PCT?
A. Yes - a lot
B. No- not really -- Answer ✔✔ B. No- not really, stays around 300
mOsm/l



6) There is a build-up of carbon dioxide in the blood (respiratory acidosis). What will
occur in the distal convoluted tubule (DCT) of the nephron to negate the acidosis?
A. Reabsorption of more protons
B. Secretion of more protons -- Answer ✔✔ B. Secretion of more protons



7) If the DCT is unable to secrete protons in this situation (respiratory acidosis), what
will happen in respiratory rate?
A. It will increase
B. It will decrease
C. It will stay the same -- Answer ✔✔ A. It will increase



8) When considering the nephron loop, the difference in solute concentration in the
medulla will cause water to move from __________ to __________
A. the descending limb; the medulla
B. the ascending limb; the medulla
C. the medulla; the descending limb
D. the medulla; the ascending limb -- Answer ✔✔ A. the descending limb;
the medulla