how sponges rely on water moving through their bodies for respiration.

Having such a large surface area increases the amount of gas that can diffuse into and out of the lungs. Because of the enormous number of alveoli (approximately 300 million in each human lung), the surface area of the lung is very large (75 m 2).

The structure of any respiratory surface (lungs, gills, tracheae), maximizes its surface area to increase gas diffusion. The information below was adapted from OpenStax Biology 39.2

The information below was adapted from OpenStax Biology 39.0 Gas Exchange across Respiratory Surfaces Predict the effects of pH, temperature, and CO2 concentrations on hemoglobin affinity for O2.Describe the reversible binding of O2 to hemoglobin (dissociation curves).Compare and contrast the structure/function of gills, tracheae, and lungs.

Explain the functional adaptations of gas exchange surfaces in animals using Fick’s Law (surface area, distance, concentration gradients and perfusion).

Apply the Law of Partial Pressures to predict direction of gas movement in solution.

How sponges rely on water moving through their bodies for respiration.