Asked by
Diane Nicole Fernandez
on Oct 09, 2024
Verified
In fish, countercurrent exchange involves water flowing over gills and blood flowing through gill capillaries in opposite directions. This increases gas exchange by creating a(n) ____.
A) larger surface area
B) osmotic gradient
C) concentration gradient
D) reservoir for gas
E) source of new hemoglobin
Countercurrent Exchange
Exchange of substances between two fluids moving in opposite directions.
Gill Capillaries
Small blood vessels within the gills of fish that facilitate the exchange of oxygen and carbon dioxide with water.
Concentration Gradient
The slow change in solute concentration within a solution from one area to another, often resulting in diffusion.
- Explain the chemical processes involved in gas exchange, including the role of enzymes and the concept of the concentration gradient.
- Describe the physiological adaptations that support efficient respiration, including countercurrent exchange and the diaphragm's role in breathing.
Verified Answer
ET
Learning Objectives
- Explain the chemical processes involved in gas exchange, including the role of enzymes and the concept of the concentration gradient.
- Describe the physiological adaptations that support efficient respiration, including countercurrent exchange and the diaphragm's role in breathing.
Related questions
Inhaled Air Has a Higher Partial Pressure of Oxygen Than ...
When Pressure in the Lungs Falls Below Atmospheric Pressure, ____ ...
The Steepness of the Concentration Gradient Across the Respiratory Membrane ...
Inhalation Is Always ____, Whereas Exhalation Is Usually ____ ...
Most of the Carbon Dioxide Produced by the Body Is ...