Which of the following is a benefit of gas exchange in air...

Name: Problem 1, Chapter 46: Biology
Uploaded: 2021-08-05T16:36:44-08:00
Duration: 1 min 32 s
Channel: Karenza Pearson
Description: Which of the following is a benefit of gas exchange in air compared with gas exchange in water? (a) air has a higher concentration of molecular oxygen (b) oxygen diffuses more slowly in air (c) no energy is required for ventilation (d) moist respiratory surface is not needed (e) air is denser than water

Which of the following is a benefit of gas exchange in air compared with gas exchange in water? (a) air has a higher concentration of molecular oxygen (b) oxygen diffuses more slowly in air (c) no energy is required for ventilation (d) moist respiratory surface is not needed (e) air is denser than water

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Oxygen Concentration and Partial Pressure

This concept pertains to the amount of oxygen available per unit volume in a given medium, largely determined by its partial pressure. Air typically has a higher partial pressure of oxygen than water, meaning that, under similar conditions, organisms can access more oxygen from air, which is a significant advantage for aerobic metabolism.

Gas Exchange Mediums

This concept addresses the different physical properties of the media in which gas exchange occurs. Air and water differ greatly in density, viscosity, and the way gases are dissolved or suspended, all of which influence how oxygen is transported to respiratory surfaces.

Diffusion Rates in Gaseous versus Aqueous Media

This concept involves the rate at which gases, like oxygen, diffuse across mediums. Oxygen diffuses much faster in air than in water due to lower density and reduced resistance, a property that enhances the efficiency of gas exchange in terrestrial organisms.

Transcript

Please give Ace some feedback