AP BIOLOGY

PLANTS

STEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Specialized stem that is usually horizontal and above the soil
A
leaf scar
B
Stolon
C
bulb
D
phloem
E
apical meristem
Explanation: 

Detailed explanation-1: -In botany a stolon-also called a runner-is a slender stem that grows horizontally along the ground, giving rise to roots and aerial (vertical) branches at specialized points called nodes.

Detailed explanation-2: -Stolons, sometimes also called runners, are slender, elongate horizontal stems that grow above ground. Stolons are classified as either procumbent or repent.

Detailed explanation-3: -Rhizomes, as seen in iris (Iris) and ginger (Zingiber officinale), are fleshy, elongated, horizontal stems that grow within or upon the soil. The branching of rhizomes results in multiplication of the plant.

Detailed explanation-4: -Stolon-Horizontal stems that run at or just below the soil surface with nodes that root and long internodes, the ends produce new plants. When above ground they are called “runners".

Detailed explanation-5: -The common stolon bearing plants are Jasmine, Colocasia, etc.

There is 1 question to complete.