The Value for Ψ in Root Tissue Was Found to Be

question 18

Multiple Choice

The value for Ψ in root tissue was found to be -0.15 MPa. If you take the root tissue and place it in a 0.1 M solution of sucrose (Ψ = -0.23 MPa) , the net water flow would

• A) be from the tissue into the sucrose solution.
• B) be from the sucrose solution into the tissue.
• C) be in both directions and the concentrations would remain equal.
• D) occur only as ATP was hydrolyzed in the tissue.
• E) be impossible to determine from the values given here.

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Definitions:

Food

Nutritious substances consumed by organisms for growth, repair, and maintenance of vital functions.

Fatty Acids

Long hydrocarbon chains that are a major component of lipids, serving as energy sources and structural elements in cell membranes.

Monoglycerides

Molecules made of one fatty acid attached to a glycerol backbone, important as emulsifiers in food production.

Small Intestine

A part of the gastrointestinal tract where most of the digestion and absorption of nutrients occurs.