The Organisms Believed to Be the First to Use Two

question 16

Multiple Choice

The organisms believed to be the first to use two different photosystems in a single photosynthetic electron transport chain are the:

• A)yeast.
• B)archaea.
• C)cyanobacteria.
• D)algae.
• E)green plants.

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Definitions:

Four-quadrant

Refers to operating modes of a drive or control system that can handle both positive and negative directions of both power and torque in all four quadrants of operation.

Magnetic Motor

An electric motor that uses magnetic fields generated by electromagnets or permanent magnets to produce rotation.

NEMA Design

Refers to standards set by the National Electrical Manufacturers Association for various types of electrical equipment, including motors.

Operating Characteristics

The specific features or parameters that define the performance of a system or device under specific conditions.