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Biology Quiz: Metabolism and Energetics

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Questions and Answers

What is the primary function of mitochondria in cellular respiration?

To generate and use billions of ATPs per day (correct)
To perform aerobic cellular respiration
To generate heat for thermoregulation
To store energy in the form of ATP

What is the relationship between oxygen consumption and temperature in animals?

Oxygen consumption decreases as temperature increases
Oxygen consumption increases as temperature increases (correct)
Oxygen consumption is only affected by humidity
Oxygen consumption remains constant regardless of temperature

What is the primary role of ATP molecules in cellular functions?

To facilitate anaerobic cellular respiration
To power muscle contractions
To store energy temporarily (correct)
To generate heat for thermoregulation

What is the main difference between aquatic and land-dwelling animals in terms of oxygen acquisition?

Aquatic animals extract oxygen from water, while land-dwelling animals extract oxygen from air (C) Signup and view all the answers

What is the term for the sum of an organism's biochemical reactions that acquire and use energy?

Metabolism (B) Signup and view all the answers

How many mitochondria can be found in a typical cell?

More than 1000 (B) Signup and view all the answers

Which process involves the transfer of heat energy by mass movement of a fluid?

Convection (B) Signup and view all the answers

What is the primary function of thermoregulation in endotherms?

To maintain a constant body temperature (D) Signup and view all the answers

What is the byproduct of ATP hydrolysis?

ADP (B) Signup and view all the answers

Which system is NOT involved in thermoregulation?

Immune system (D) Signup and view all the answers

What is the direction of heat flow in a system?

From warmer to cooler areas (C) Signup and view all the answers

What is the term for the control of body temperature in organisms?

Thermoregulation (D) Signup and view all the answers

What is the direction of water movement in osmosis?

Toward the side with the higher concentration of dissolved solutes (B) Signup and view all the answers

What happens to water in freshwater fish?

Water enters the body by osmosis (D) Signup and view all the answers

How do fish gills help in osmoregulation?

By taking up essential ions from water by active transport (A) Signup and view all the answers

What is the function of the urinary system in mammals?

To filter blood, eliminate nitrogenous wastes, and maintain ion concentration (D) Signup and view all the answers

What happens to salts in saltwater fish?

Salts are actively transported out of the gills (C) Signup and view all the answers

What is the function of ureters in the urinary system?

Muscular tubes that drain urine into the urinary bladder for temporary storage (C) Signup and view all the answers

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