Which Common Structural Feature of Vitamin E and Vitamin K₁

question 13

Multiple Choice

Which common structural feature of vitamin E and vitamin K₁ best accounts for the greater solubility of these molecules in organic solvents than water?

• A) aromatic rings
• B) oxygen atoms
• C) 4 isoprene units
• D) a quinone / hydroquinone units

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Definitions:

PLC

Stands for Programmable Logic Controller, a digital computer used for automation of electromechanical processes, such as control of machinery on factory assembly lines.

CPU

The Central Processing Unit, which is the primary component of a computer responsible for interpreting and executing most of the commands from a computer's other hardware and software.

Ladder Logic

A programming language used to represent control logic in easily understood symbols arranged in a structure resembling a ladder, widely used in industrial and mechanical applications.

Scan

The process by which a PLC (Programmable Logic Controller) systematically checks its input signals and updates its outputs.