This Helps to Explain the Distribution of Settlements of Varying

question 41

Multiple Choice

This helps to explain the distribution of settlements of varying sizes in North Dakota. Larger settlements are fewer and farther apart, whereas smaller settlements are more frequent and closer together.

• A) Rank-size rule
• B) Range
• C) Central place theory
• D) Primate city rule
• E) Range of service rule

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Definitions:

Facilitated Transport

Passive transfer of a substance into or out of a cell along a concentration gradient by a process that requires a protein carrier.

Carrier Proteins

Proteins that facilitate the transport of specific substances across a cell membrane by changing shape.

Glucose Carrier

Proteins that facilitate the transport of glucose across cell membranes, via mechanisms such as facilitated diffusion.

Urea

A nitrogenous waste product formed in the liver, important in the metabolic breakdown of proteins and excreted in urine.