Which Explains the Relationship Between the Gas Pressure Gradient of the Atmosphere

question 13

Multiple Choice

Which explains the relationship between the gas pressure gradient of the atmosphere and the alveolar air that allows inhalation?

• A) When atmospheric pressure is less than the pressure within the lung, air flows down this gas pressure gradient. Then air moves from the atmosphere into the lungs.
• B) When atmospheric pressure is greater than the pressure within the lungs, air flows down this gas pressure gradient. Then air moves from the atmosphere into the lungs.
• C) When atmospheric pressure is greater than the pressure within the lung, air flows away from this gas pressure gradient. Then air moves from the lungs out into the atmosphere.
• D) When atmospheric pressure is less than the pressure within the lung, air flows up this gas pressure gradient. Then air moves from the atmosphere into the lungs.

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Definitions:

Net Productivity

is the rate at which energy or biomass accumulates in an ecosystem's producers, after subtracting the energy used in respiration, representing the amount of new biological material.

Mineral Release

The process by which minerals become available to organisms in the environment, often through the weathering of rocks or decomposition of organic matter.

Sulfates

Compounds that contain the sulfate ion, SO4^2-, known for their role in atmospheric processes and potential to cause acid rain.

Biological Diversity

The variety of life in all its forms and levels of organization, including ecosystem, species, and genetic diversity.