Digestive and Excretory System Q&A Quiz 1

DIGESTIVE AND EXCRETORY SYSTEM Q&A
QUIZ 1


Question 1
● Processing of filtrate in the proximal and distal tubules accomplishes what
important function?
MAINTAINING A CONSTANT PH IN BODY FLUIDS


Question 2
● Proper functioning of the human kidney requires considerable active transport of
sodium in the kidney tubules. If these active transport mechanisms were to stop
completely, how would urine production be affected?
A GREATER-THAN-NORMAL VOLUME OF ISOSMOTIC URINE WOULD BE
PRODUCED.


Question 3
● The last organ where peristalsis takes place is ___________.
LARGE INTESTINE


Question 4
● The advantage of excreting wastes as urea rather than as ammonia is that
UREA IS LESS TOXIC THAN AMMONIA.


Question 5
● Where and from what compound(s) is urea produced?
LIVER FROM NH3 AND CO2


Question 6
● The substance that is responsible for the stool color is ________.
BILIRUBIN