AP BIOLOGY

PLANTS

STEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A specialized stem that is thick and runs horizontally underneath the soil
A
Xylem
B
cambium
C
rhizome
D
lateral bud
E
corm
Explanation: 

Detailed explanation-1: -rhizome, also called creeping rootstalk, horizontal underground plant stem capable of producing the shoot and root systems of a new plant. Rhizomes are used to store starches and proteins and enable plants to perennate (survive an annual unfavourable season) underground.

Detailed explanation-2: -Rhizomes are simply fleshy underground stems. They grow underground or right at ground level with many growing points or eyes similar to potatoes. Common examples of rhizomes include canna lilies, bearded Iris, ginger and bamboo.

Detailed explanation-3: -A rhizome is a segmented, subterranean, modified stem arising from an adventitious bud in the crown zone. Rhizomes may occur on cool and warm season grasses and may be determinate or indeterminate. Determinate rhizomes are short and turn upward to form a new aerial shoot (rhizome daughter plant).

Detailed explanation-4: -A rhizome is a modified stem that grows horizontally underground; it has nodes and internodes.

Detailed explanation-5: -Rhizome:-Its is a thick, underground dorsiventral stem that grows horizontally at a particular depth within the soil. The example is Ginger. Corm:-It is the underground modification of the main stem with more diameter than length. It stores food materials and become tuberous. The example is Colocasia.

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