Respiratory Methods in Aquatic and Terrestrial Organisms

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Questions and Answers

Why do aquatic organisms breathe faster than terrestrial organisms?

  • They require more energy to swim.
  • They need to regulate body temperature.
  • There is less dissolved oxygen in water than in air. (correct)
  • They are larger in size.

Fish breathe by taking water in through their gills and pushing it out through their mouths.

False (B)

What organ do terrestrial organisms primarily use for respiration?

lungs

Aquatic organisms extract oxygen from water using their ______.

<p>gills</p> Signup and view all the answers

Match the following respiration methods to the corresponding organisms:

<p>Fish = Gills Humans = Lungs Insects = Tracheae Amphibians = Skin and lungs</p> Signup and view all the answers

What is the primary product of aerobic respiration?

<p>Carbon dioxide, water, and ATP (A)</p> Signup and view all the answers

Anaerobic respiration occurs in the presence of oxygen.

<p>False (B)</p> Signup and view all the answers

What molecule is synthesized from the energy released during cellular respiration?

<p>ATP</p> Signup and view all the answers

During anaerobic respiration in yeast, glucose is converted into ______ and carbon dioxide.

<p>ethanol</p> Signup and view all the answers

Match the following processes with their corresponding conditions:

<p>Aerobic Respiration = Occurs with oxygen Anaerobic Respiration in muscle cells = Produces lactic acid Anaerobic Respiration in yeast = Produces ethanol and carbon dioxide ATP Breakdown = Releases energy for cellular functions</p> Signup and view all the answers

Flashcards

Fish Respiration

The process by which a fish takes in water through its mouth and pushes it over its gills, where oxygen is absorbed into the blood.

Operculum

The covering that protects the gills in fish.

Dissolved Oxygen in Water

The amount of dissolved oxygen in water is lower than the amount of oxygen in the air. This is why aquatic organisms breathe faster than terrestrial organisms.

Respiratory Organs (Terrestrial)

The organs used by terrestrial organisms to breathe oxygen from the atmosphere.

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Gills

The structures in fish where oxygen is absorbed from water into the blood.

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Cellular Respiration

The process of breaking down glucose to produce energy, occurring with or without oxygen.

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Aerobic Respiration

Cellular respiration that uses oxygen to break down glucose, producing ATP, carbon dioxide, and water.

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Anaerobic Respiration

Cellular respiration that occurs without oxygen, producing ATP and either lactic acid (in muscles) or ethanol and carbon dioxide (in yeast).

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ATP (Adenosine Triphosphate)

The main energy currency of cells, used to power various cellular activities.

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ATP Breakdown

The breakdown of ATP releases energy to drive essential cellular processes.

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