Question

Helianthus tuberosus (Jerusalem artichoke) stores inulin in its underground stem, whereas H. tubefera (Chinese artichoke) stores stachyose. These stems are

• A. Bulbs
• B. Rhizomes
• C. Tubers
• D. Corms

Answer 1

The correct option is C Tubers

Helianthus tuberosus (Jerusalem artichoke) stores inulin in its underground stem whereas H. tubefera (Chinese artichoke) stores stachyose. These stems are tubers. The artichoke contains about 10% protein, no oil and a surprising lack of starch. However, it is rich in the carbohydrate insulin (76%), which is a polymer of the monosaccharide fructose. Tubers stored for any length of time will convert their insulin into its component fructose. Jerusalem artichokes have an underlying sweet taste because of the fructose, which is about one and a half times sweeter than sucrose.
Thus, the correct answer is option C.