Xylem Vessels, Found in Angiosperms, Have a Much Greater Internal

question 74

Multiple Choice

Xylem vessels, found in angiosperms, have a much greater internal diameter than tracheids, the only xylem-conducting cells found in gymnosperms. The tallest living trees, redwoods, are gymnosperms. Which of the following is an advantage of tracheids over vessels for long-distance transport to great heights?

• A) Adhesive forces are proportionally greater in narrower cylinders than in wider cylinders.
• B) The smaller the diameter of the xylem, the more likely cavitation will occur.
• C) Cohesive forces are greater in narrow tubes than in wide tubes of the same height.
• D) Adhesive forces are proportionally greater in narrower cylinders than in wider cylinders, and cohesive forces are greater in narrow tubes than in wide tubes of the same height.
• E) Adhesive forces are proportionally greater in narrower cylinders than in wider cylinders, and the smaller the diameter of the xylem, the more likely cavitation will occur.

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Definitions:

Schizophrenia

A serious mental disorder in which people interpret reality abnormally, often experiencing a combination of hallucinations, delusions, and extremely disordered thinking and behavior.

Negative Symptoms

In the context of mental health, symptoms that represent a reduction or absence of normal behaviors, thoughts, or emotions, often found in schizophrenia.

Major Symptoms

Primary signs or indicators of a disease or condition that are critical for diagnosis and distinguishing one medical issue from another.

Schizophrenia

A chronic and severe mental disorder affecting how a person thinks, feels, and behaves, often characterized by episodes of psychosis.