tuberous root is modified :(a)tap root ;(b) adventitious root?
Answers
Answer:
Explanation:
The main root (primary root) with other minor side roots, which grow deep into the soil is called Taproot. While the fine, thick hairs like structure, that spread sideways in all the directions is called Fibrous or Adventitious root. Taproot arises from the radicle (embryonic part) of the plants, but the Fibrous root grows from the stem and leaves rather from the radicle.
Plants bear parts like stem, leaves, fruits, flowers and most importantly roots. Roots are the underground part, which helps in absorbing nutrients, water, and moisture from the soil. Most flowering plants, shrubs, and trees produce tap roots which can travel deep into the soil, while fibrous or adventitious roots are seen in grasses and reed (tall grasses) plants and grow near to the surface of the soil.
Content: Tap Root Vs Adventitious Root
Comparison Chart
Definition
Key Differences
Similarities
Conclusion
Comparison Chart
BASIS FOR COMPARISON TAP ROOT FIBROUS (ADVENTITIOUS) ROOT
Meaning Such roots which develop into primary root arising from radicle (embryonic root), these become the main root of the plant,with secondary, tertiary and other lateral branches. Such roots that arise from other parts of the plants like stems, or leaves other than roots are called fibrous or adventitious root.
Develops from It develops from the radicle of the embryo. It develops from the stem, leaves or places other than radicle.
Features of root Consist of a persistent primary root. Consist of the short-lived root.
These are deep-rooted. Usually shallow.
Always underground. Can be either underground or aerial.
Taproot consists of only one long and main root. Multiple root systems.
It can be the surface feeder or deep feeder. The root system of this type is the surface feeder.
As compared to other roots main root is very thick. Roots are thin, hair like, similar in thickness and are in the form of the cluster.
Primary, secondary, tertiary and rootlets are visible. No differentiation in roots and bunch of roots develops at one spot.
Other characteristics Can survive in the drought area. Cannot survive in drought and will dry out easily, but quick in absorbing surface and irrigation water.
The tap root systems occur in dicots plants. The fibrous or adventitious root system occurs in monocots.
Leaves have reticulate venation. Leaves have parallel venation.
Example Carrot, Reddish, Beets. Onion, Grass, Wheat, Coconut palm.
Definition of Tap Root
One of the main type of root system in angiosperms is the tap root systems. The roots which develop from the radicle (embryonic root) of the plants are called tap root. These are deep-rooted, underground roots having one main single thick root called as primary root. The primary root has branches as secondary, tertiary or lateral from the primary branch.
content_image_tap_root
Taproot system is usually seen in dicots; these roots help plants to anchor better to the soil. It also helps in absorbing water from deeper sources, and hence these can survive in drought situation also.
In this type, the primary root originates directly from the embryonic root or radicle. This root grows in the downward direction into the soil. From this trunk shape primary root, lateral roots (roots that grow from the other root) develop initially in the horizontal direction and then turning downward.
These roots repeatedly develop into more finer roots, giving rise to a root tip, with a protective and minute root cap on the tip. This root cap helps in absorbing water and nutrients from the deep soil. The best examples are radish, carrots, and beets.
Definition of Fibrous (Adventitious) Root
Fibrous roots are known for the cluster or group of similarly sized, thickness, hair like structure. This structure emerges at the base of the plant, which can grow into the soil (downward) or aerially (upward) and in all the directions. Fibrous roots do not arise from the radicle but the other parts of the plants like stems and leaves.