If the Cytoplasm of a Cell Is at PH 7

question 23

Multiple Choice

If the cytoplasm of a cell is at pH 7, and the mitochondrial matrix is at pH 8, this means that

• A) the concentration of H+ ions is tenfold higher in the cytoplasm than in the mitochondrial matrix.
• B) the concentration of H+ ions is tenfold higher in the mitochondrial matrix than in the cytoplasm.
• C) the concentration of H+ ions in the cytoplasm is 7/8 the concentration in the mitochondrial matrix.
• D) the mitochondrial matrix is more acidic than the cytoplasm.
• E) the concentration of H+ ions in the cytoplasm is 8/7 the concentration in the mitochondrial matrix.

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Definitions:

Lateral Moraine

A deposit of debris along the sides of a glacier, formed from the accumulation of material eroded from the valley walls.

Terminal Moraine

A terminal moraine is a type of moraine that forms at the end of a glacier, marking the furthest advance of the glacier, and consists of a ridge of debris that was transported and deposited by the ice.

Drumlins

Elongated hills formed by glacial ice acting on underlying debris, oriented in the direction of ice movement.

Loess

A fine, wind-deposited sediment that forms fertile soil, typically found in prairie regions.