Excretion

Which one of the following excretes Ammonia as their main nitrogenous end product?

• Ammonotelic

• Ureotelic

• Uricotelic

• None of them

500ml of water is needed to excrete how many grams of Ammonia?

• 1g

• 2g

• 3g

• 5g

Urea is produced in the liver by a metabolic cycle that combines NH3 to

• CO3

• CO2

• HCO3

• H2O

Which of the following nitrogenous waste have the least solubility in water?

• Uric acid

• Urea

• Ammonia

• CO2

The diagram below shows the metanephridia of an earthworm. Identify the part labeled as “E”.

• Nephridiopore

• Capillary network

• Collecting tubule

• Nephrostome

Which of the following is uricotelic?

• Freshwater fish

• Mammal

• Shark

• Reptile

Which of the following is Ammonotelic?

• Freshwater fish

• Mammal

• Shark

• Reptile

Which of the following is ureotelic?

• Mammal

• Reptile

• Insect

• Land snail

In freshwater fishes, their nitrogenous waste is excreted through

• Rectal gland

• Mouth

• Gills

• Fins

Excretory organs of planaria are

• Protonephridia

• Metanephridia

• Kidney

• Skin