AP Biology (Mader), 11th Edition

Chapter 36: Body Fluid Regulation and Excretory Systems

Pre-Test

1
Malpighian tubules are attached to the _____.
A)bladder
B)gut
C)body wall
2
What structures, found along the excretory tubules of planarians, function to propel fluids (wastes) through the tubules to the outside of the body?
A)Collecting ducts
B)Nephridia
C)Malpighian tubules
D)Flame cells
3
Urea is produced by the _____.
A)kidneys
B)liver
C)spleen
D)large intestine
4
Converting amino groups to which of the following substances conserves the most water?
A)Ammonia
B)Urea
C)Uric acid
5
The amino groups from amino acids may be broken down to _________ as a nitrogenous excretory product, but only if a good deal of water is available to wash it from the body.
A)ammonia
B)urea
C)uric acid
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