FROG,DIFFERENCES AND SIMILARITIES

• What is the primary respiratory structure used by frogs?

  Skin
• How does the skin of frogs facilitate respiration?

  The moist skin allows respiratory gases to diffuse easily
• What is the state in which frogs primarily breathe through their skin?

  Moist state
• What happens to respiratory gases in frogs?

  They diffuse through the skin into the bloodstream
• What is the role of the lungs in frog respiration?


  They assist in breathing when the frog is active
• What is the surface of the lungs in frogs adapted for?

  Gas exchange
• What is the characteristic of the lung membranes in frogs?

  They are thin
• Why is the wall of the lung in frogs structured a certain way?

  To enable efficient gas exchange
• What is the breathing mechanism of frogs during inhalation?

  Air is drawn into the lungs
• What happens to the buccopharyngeal cavity during frog inhalation?

  The floor lowers
• What is the role of the glottis during frog exhalation?


  It opens to allow air to flow out
• What is the pressure condition in the mouth during frog inhalation?

  The air pressure in the mouth is lower
• How does air enter the buccopharyngeal cavity in frogs?

  Through the nostrils and glottis
• How does the pressure change in the buccopharyngeal cavity during exhalation?

  Negative pressure pushes the air out
• What are the similarities in the breathing mechanisms of humans and animals?

  • All have respiratory cavities
  • All breathing mechanisms involve pressure changes in the respiratory cavity

  
• What are the differences in respiratory structures among insects, fish, frogs, and humans?

  • Insects: Tracheal system
  • Fish: Gills
  • Frogs: Skin and lungs
  • Humans: Lungs

  
• How is the large surface area for gas exchange achieved in respiratory structures?

  • Through extensive branching
  • By having thin membranes
  • By maximizing surface area relative to volume

  
• What are the characteristics of the breathing mechanisms in different organisms?

  • Insects: Assisted by tracheal system
  • Fish: Assisted by gills
  • Frogs: Assisted by lungs and skin
  • Humans: Assisted by lungs

  
• What is the primary respiratory structure in insects?

  Tracheal system
• What respiratory structure do fish primarily use?

  Gills
• What respiratory structure do humans primarily use?

  Lungs
• How do frogs breathe when they are in an active state?

  They use both skin and lungs
• What is the significance of the respiratory structures being moist in frogs?

  It facilitates gas exchange
• What assists the breathing mechanism in frogs?

  Muscles of the lungs
• What is the role of the nostrils in frog respiration?

  They allow air to enter and exit
• How do the breathing mechanisms of frogs and humans compare?

  Both involve pressure changes in the respiratory cavity