BIOMOLECULES AND ENZYMES

BIOLOGY

CLASSIFICATION OF CARBOHYDRATES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The two types of tubers are ____ and ____ tubers
A
grains ; cereal
B
root ; stem
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -There are two types of tubers: root tubers and stem tubers. Root tubers, including dahlia flowers and cassava, grow fleshy bulges in the roots of the plant. Stem tubers, like potatoes, grow tubers from modified stem organs. Sometimes, the stem organs of tuberous plants can grow horizontally.

Detailed explanation-2: -People often use tuber to refer to any plant structure with rounded or wart-like prominences, but botanically, true tubers are actually modified plant stems, not roots, even though they’re found underground. Potatoes are the most common example of true tubers.

Detailed explanation-3: -Stem tuber is a swollen underground stem, differentiated into nodes and internodes. Whereas root tuber is a swollen root, not differentiated into nodes and internodes. Stem tuber is borne at the tip of underground stem branches. Whereas root tuber develops adventitiously from any part of the stem.

Detailed explanation-4: -Tuberous begonias, yams, and cyclamens are commonly grown stem tubers.

Detailed explanation-5: -tuber, specialized storage stem of certain seed plants. Tubers are usually short and thickened and typically grow below the soil. Largely composed of starch-storing parenchyma tissue, they constitute the resting stage of various plants and enable overwintering in many species.

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