Which of the following correctly describes the flow of protons between the intermembrane space and the matrix?
A) Protons flow spontaneously directly through the lipid bilayer from the intermembrane space to the matrix.
B) Protons flow spontaneously directly through the lipid bilayer from the matrix to the intermembrane space.
C) Protons flow spontaneously through a channel in the lipid bilayer from the intermembrane space to the matrix.
D) Protons flow spontaneously through a channel in the lipid bilayer from matrix to the intermembrane space.
C
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This globe, from the opening two-page spread of the Climate chapter, shows average annual temperature (warmest is red, coolest is purple). What is the main factor causing Europe to be colder than Africa?
A) Trade winds
B) Westerlies
C) Amount of insolation
D) Ocean currents
Most of the world's deserts occur in what zone?
A) Intertropical Convergence Zone B) Subtropical High Pressure Zone C) Mid-latitude Low Pressure Zone D) Polar High Pressure Zones
The Human Development Index (HDI) is a scale which was developed to consider attributes of the quality of life for individuals in a specific area
Indicate whether the statement is true or false
Match the type of meteorite with the correct definition
A) Silicate minerals with inclusions of other minerals B) Combinations of iron and silicate minerals C) Mostly aggregates of iron with 5 percent to 20 percent nickel 1) Stony-iron 2) Iron 3) Stony