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11 Questions

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Regulation of Body Fluids: Key Terms

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Questions and Answers

What is the primary function of osmoregulation in the body?

To produce metabolic wastes

To maintain a constant pH level

To control the movement of water across cell membranes

To regulate water and ion balance (correct)

Which of the following statements is true about osmoconformers?

They are found mainly in freshwater environments

They are typically found in marine invertebrates (correct)

Their body fluids are generally hypotonic to their surroundings

They consume a lot of energy to maintain water balance

What is the term for the movement of water from a region of higher osmolarity to a region of lower osmolarity?

Osmoregulation

Osmolarity

Osmosis (correct)

Excretion

What is the purpose of excretion in the body?

To eliminate metabolic wastes and maintain water balance Signup and view all the answers

Which type of animal would be most likely to discharge water in a hypotonic environment?

Osmoregulator Signup and view all the answers

What is the term for the solute concentration of a solution, expressed in milliosmoles per liter?

Osmolarity Signup and view all the answers

Which nitrogenous waste product requires the most water to excrete?

Ammonia Signup and view all the answers

What is a characteristic of urea production?

It is formed by combining ammonia with bicarbonate ion Signup and view all the answers

Which of the following is a characteristic of uric acid?

It is relatively nontoxic Signup and view all the answers

What is a difference between urea and ammonia?

Urea is less toxic than ammonia Signup and view all the answers

Which group of organisms excretes ammonia as their primary nitrogenous waste product?

Aquatic invertebrates, teleosts, and larval amphibians Signup and view all the answers