How Do Sugars Move from One Sieve-Tube Cell to the Next

question 58

Multiple Choice

How do sugars move from one sieve-tube cell to the next?

• A) by osmotic diffusion through the sieve plate
• B) by flowing along with water through perforations in the sieve plate
• C) by active transport across cell membranes at the sieve plate
• D) by diffusion through a companion cell that spans the sieve plate

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Definitions:

Elastic

Describes a situation in which the demand for a good or service significantly changes in response to changes in price.

Elastic

Describes a situation where the demand for a product or service significantly changes in response to a change in its price.

Price Elastic

Relating to the responsiveness of the demand or supply of a good or service to changes in its price.

Price Elasticity

A measure of the responsiveness of the quantity demanded or supplied of a good or service to a change in its price.