Judge the Following Sentence According to the Criteria Given Below

question 48

Multiple Choice

Judge the following sentence according to the criteria given below. Seafloor elevations decrease away from mid-ocean ridges because cooling lithosphere contracts, becomes denser and sinks down into the weak asthenosphere.

• A) The assertion is correct but the reason is incorrect.
• B) The assertion is incorrect but the reason is correct.
• C) The assertion and the reason are both correct, and the reason is valid.
• D) The assertion and the reason are both correct, but the reason is invalid.
• E) Both the assertion and the reason are incorrect.

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Definitions:

Beta Cells

Cells located in the pancreas that produce and secrete insulin, a hormone that regulates blood glucose levels.

Phosphorylation

Addition of phosphate to an organic compound.

Active Transport Molecules

Substances involved in the movement of ions and other molecular substances across cell membranes against a concentration gradient, requiring energy.

Plasma Membrane

A bi-layer of lipids with embedded proteins that surrounds a cell, controlling the movement of substances in and out of the cell.