Which One of the Following Statements About Transport of Nutrients

question 17

Multiple Choice

Which one of the following statements about transport of nutrients in phloem is correct?

• A) Solute particles are actively transported from phloem at the source.
• B) Companion cells control the rate and direction of movement of phloem sap.
• C) Differences in osmotic concentration at the source and sink cause a hydrostatic pressure gradient to be formed.
• D) A sink is the part of a plant where a particular solute is produced.

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Definitions:

MouseAdapter

A MouseAdapter in Java is an abstract adapter class used to receive mouse events, allowing the programmer to handle only the needed mouse events without implementing all mouse listener methods.

Class

A blueprint in object-oriented programming that defines a new data type including its data structure and the operations that can be performed on it.

Throwable

The superclass of all errors and exceptions in the Java language, providing a mechanism for handling error and exception conditions in a unified way.

Throw Statement

An instruction in programming that allows the manual triggering of an exception, usually to indicate an error or unexpected condition.