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General Biology

Study Pack

Set 44 Osmoregulation And Excretion

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Question 1

(Multiple Choice)

Free
Urea is produced in the

A)liver from NH₃ and CO₂.
B)liver from glycogen.
C)kidneys from glucose.
D)kidneys from glycerol and fatty acids.
E)bladder from uric acid and H₂O.

Answer

Question 2

(Multiple Choice)

Free
Which of the following pairs of organisms excrete nitrogenous wastes in the form of uric acid?

A)mice and birds
B)insects and birds
C)lions and horses
D)humans and frogs
E)fish and turtles

Answer

Question 3

(Multiple Choice)

Free
Osmoconforming sharks take in water,as needed

A)by migrating to freshwater rivers to drink fresh water.
B)via osmosis, as their body cells are slightly hyperosmotic to sea water.
C)via active transport of water across the cells on their gills.
D)by water diffusion from sea water, which is hyperosmotic to the fluids in their cells.
E)by selective transport of water molecules across the wall of the gut.

Answer