Water Flows into the Source End of a Sieve Tube

question 33

Multiple Choice

Water flows into the source end of a sieve tube because ________.

• A) sucrose has been actively transported into the sieve tube, making it hypertonic
• B) water pressure outside the sieve tube forces in water
• C) the companion cell of a sieve tube actively pumps in water
• D) sucrose has been transported out of the sieve tube by active transport

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Definitions:

Group Boundaries

The defined edges or limits of a group that distinguish its members from non-members and help maintain its existing structures and norms.

Measurement

The process of determining the size, length, or amount of something using standard units.

Product Obsolescence

The process by which a product becomes outdated or no longer useful, often due to advances in technology or changes in consumer preferences.

External Adaptation

The process by which an organization adjusts and changes its strategies and operations in response to external environmental factors.