All of the Following Cell Types Are Correctly Matched with Their

question 27

Multiple Choice

All of the following cell types are correctly matched with their functions except

• A) mesophyll-photosynthesis.
• B) guard cell-regulation of transpiration.
• C) sieve-tube member-translocation.
• D) vessel element-water transport.
• E) companion cell-formation of secondary xylem and phloem.

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Definitions:

Wear-And-Tear

The damage or deterioration that occurs as a result of ordinary use over time.

Programmed Aging

The theory that aging is a biological process controlled by specific genes.

Tertiary Aging

The progression of changes in an individual that are due to disease, rather than due to normal aging or genetics.

Lifespan

The length of time a living being, especially a human, exists from birth to death.