What Is Responsible for Creating the Large Holes in the Sieve

question 47

Multiple Choice

What is responsible for creating the large holes in the sieve plates of phloem cells?

• A) the loss of organelles from phloem cells
• B) the cohesive property of water molecules
• C) reduction of cellulose in the cell walls
• D) translocation of organic molecules
• E) enlargement of plasmodesmata

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Definitions:

Factor X

A hypothetical or unspecified factor in an equation, model, or situation that has an impact on the outcome but is not explicitly defined.

Production Function

An equation that describes the maximum output that can be obtained from a given set of inputs.

Isoquant

An isoquant line represents combinations of inputs that produce the same level of output in production theory.

Output

The total amount of goods or services produced by a business, industry, or economy.