UMD General Biology 2 Exam 2 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
osmoconformers - CORRECT ANSWER - isosmotic with their environment, marine
invertebrates
osmoregulators - CORRECT ANSWER - adjust internal osmolarity, marine vertebrates,
freshwater fish, terrestrial animals
freshwater fish problems - CORRECT ANSWER - gain water by osmosis, lose electrolytes
by diffusion
freshwater fish - CORRECT ANSWER - hypertonic to environment
freshwater fish solutions - CORRECT ANSWER - don't drink water, lots of urine, add
electrolytes by diet and active transport
marine fish - CORRECT ANSWER - hypotonic to ocean
marine fish problems - CORRECT ANSWER - lose water by osmosis, gain electrolytes by
diffusion
marine fish solutions - CORRECT ANSWER - drink water, reduced amount of urine,
excrete electrolytes by active transport
anadromous fish - CORRECT ANSWER - hypertonic in freshwater (beginning and end of
life), hypotonic I ocean (middle of life)
, anadromous fish in salt water - CORRECT ANSWER - pump salt out
anadromous fish in fresh water - CORRECT ANSWER - pump salt in
osmoregulation in land animals problems - CORRECT ANSWER - lose water by
evaporation and urination, lose electrolytes in urine
osmoregulation in land animals solutions - CORRECT ANSWER - drink water, regulate
urine production, add electrolytes through diet
most toxic to least toxic nitrogenous waste - CORRECT ANSWER - ammonia, urea, uric
acid
three steps of excretion - CORRECT ANSWER - filtration, reabsorption, secretion
filtration in insects takes place where? - CORRECT ANSWER - malphigan tubules
what is actively transported in the malphigan tubules? - CORRECT ANSWER - K+
reabsorption in insects takes place where? - CORRECT ANSWER - hindgut
filtration in animals takes place where? - CORRECT ANSWER - glomerulus into
bowman's space
reabsorption in animals takes place where? - CORRECT ANSWER - proximal tubule, loop
of henle, collecting duct
ascending limb, loop of henle - CORRECT ANSWER - impermeable to water, permeable
to electrolytes
ACTUAL Exam Questions and CORRECT
Answers
osmoconformers - CORRECT ANSWER - isosmotic with their environment, marine
invertebrates
osmoregulators - CORRECT ANSWER - adjust internal osmolarity, marine vertebrates,
freshwater fish, terrestrial animals
freshwater fish problems - CORRECT ANSWER - gain water by osmosis, lose electrolytes
by diffusion
freshwater fish - CORRECT ANSWER - hypertonic to environment
freshwater fish solutions - CORRECT ANSWER - don't drink water, lots of urine, add
electrolytes by diet and active transport
marine fish - CORRECT ANSWER - hypotonic to ocean
marine fish problems - CORRECT ANSWER - lose water by osmosis, gain electrolytes by
diffusion
marine fish solutions - CORRECT ANSWER - drink water, reduced amount of urine,
excrete electrolytes by active transport
anadromous fish - CORRECT ANSWER - hypertonic in freshwater (beginning and end of
life), hypotonic I ocean (middle of life)
, anadromous fish in salt water - CORRECT ANSWER - pump salt out
anadromous fish in fresh water - CORRECT ANSWER - pump salt in
osmoregulation in land animals problems - CORRECT ANSWER - lose water by
evaporation and urination, lose electrolytes in urine
osmoregulation in land animals solutions - CORRECT ANSWER - drink water, regulate
urine production, add electrolytes through diet
most toxic to least toxic nitrogenous waste - CORRECT ANSWER - ammonia, urea, uric
acid
three steps of excretion - CORRECT ANSWER - filtration, reabsorption, secretion
filtration in insects takes place where? - CORRECT ANSWER - malphigan tubules
what is actively transported in the malphigan tubules? - CORRECT ANSWER - K+
reabsorption in insects takes place where? - CORRECT ANSWER - hindgut
filtration in animals takes place where? - CORRECT ANSWER - glomerulus into
bowman's space
reabsorption in animals takes place where? - CORRECT ANSWER - proximal tubule, loop
of henle, collecting duct
ascending limb, loop of henle - CORRECT ANSWER - impermeable to water, permeable
to electrolytes
