Which of the Following Statements Concerning Starch Is INCORRECT

question 39

Multiple Choice

Which of the following statements concerning starch is INCORRECT?

• A) Starch is a polysaccharide found in plants.
• B) Starch is abundant in corn and potatoes.
• C) Amylose comprises about 20% of starch and it is insoluble in water.
• D) Amylopectin,a highly branched component of starch,is soluble in water.
• E) Amylose is composed of α-glucose polymers;amylopectin is composed of β-glucose polymers.

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Definitions:

Cohesion-Tension Theory

A theory that explains the movement of water and nutrients from roots to leaves in plants through the cohesive and adhesive properties of water.

Mesophyll

The inner tissue of a leaf, containing chlorophyll where photosynthesis takes place, typically between the upper and lower epidermis.

Casparian Strip

A band of cell wall material found in the roots of plants, impregnated with suberin and lignin, that controls the flow of water and solutes into the xylem.

Vascular Cylinder

A central part of the root of plants where xylem and phloem tissues are located, responsible for the transport of water, nutrients, and other substances.