Carbon Dioxide Crosses the Plasma Membrane by Simple Diffusion

question 87

Multiple Choice

Carbon dioxide crosses the plasma membrane by simple diffusion. The rate at which carbon dioxide enters the cell is determined by the:

• A)concentration of carbon dioxide on each side of the membrane.
• B)amount of energy being produced by the cell.
• C)amount of transport protein in the membrane.
• D)amount of carbon dioxide outside of the cell.
• E)amount of oxygen being exported from the cell.

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Definitions:

Speciation

The evolutionary process by which populations evolve to become distinct species, typically as a result of genetic isolation and environmental pressures.

Palms

A diverse family of tropical plants known for their large, compound, evergreen leaves and found in warm climates around the world.

Allopolyploidy

Refers to polyploidy (more than two paired chromosomes) resulting from interspecific hybridization. If polyploidy arises within a species, it’s called autopolyploidy.

Chromosome Number

The total number of chromosomes present in the cell nucleus of an organism, which is characteristic of each species.