The Pr → Pfr Conversion Cycle Is Known to Control

question 48

Multiple Choice

The Pr → Pfr conversion cycle is known to control various growth functions in plants.Which of the following functions does the cycle NOT control?

• A)decrease water transport
• B)promote seed germination
• C)inhibit shoot elongation
• D)promote flowering
• E)affect accumulation of chlorophyll in plant tissue

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Definitions:

Servo Motor

A specialized motor designed to provide precise control of angular or linear position, velocity, and acceleration.

Control Valve

A valve used to regulate the flow of a fluid by varying the size of the flow passage as directed by a signal from a controller.

Derivative Action

In control systems, a component of a PID controller that predicts system behavior and acts proportionally to the rate of change of the error signal.

Error Signal

A feedback signal indicating a discrepancy between the desired and actual performance of a system.