Which of the Following Statements About Phloem Unloading at Sinks

question 18

Multiple Choice

Which of the following statements about phloem unloading at sinks is not consistent with our current understanding?

• A)Passive transport plays a role.
• B)Regardless of the type of sink,the conversion of sucrose to storage compounds such as starch is a major part of the process.
• C)The mechanisms of sucrose movement and the membrane proteins involved vary among different plant species.
• D)The mechanisms of sucrose movement and the membrane proteins involved vary among different sinks within a plant.
• E)Active transport plays a role.

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Definitions:

Electrical Charge

A physical property of matter that causes it to experience a force when placed in an electromagnetic field.

Millivolts

A unit of electric potential equal to one-thousandth of a volt, commonly used in measuring small voltage differences.

Neuron

A specialized cell in the nervous system that transmits information to other nerve cells, muscle cells, or gland cells, primarily through electrical and chemical signals.

Glia

Supportive cells in the central nervous system that provide support and nutrition, maintain homeostasis, form myelin, and participate in signal transmission in the nervous system.