EVERYDAY SCIENCE

SCIENCE

BOTANY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When the primary root grows down from the stem and produces a few small secondary roots
A
fibrous
B
taproot
C
terminal bud
D
venation pattern
Explanation: 

Detailed explanation-1: -Taproot is seen in dicot plants. It is tapering in shape. It grows vertically downward and is the main root of primary root system. It gives rise to smaller lateral roots called secondary roots that further produce lateral roots called tertiary roots.

Detailed explanation-2: -A tap root system has a main root that grows down vertically, and from which many smaller lateral roots arise. Dandelions are a good example; their tap roots usually break off when trying to pull these weeds, and they can regrow another shoot from the remaining root). A tap root system penetrates deep into the soil.

Detailed explanation-3: -Most vascular plants have two types of roots: primary roots that grow downward and secondary roots that branch out to the side. Together, all the roots of a plant make up a root system. Roots have three major jobs: absorbing water and minerals, anchoring and supporting the plant, and storing food.

Detailed explanation-4: -The primary root, or radicle, is the first organ to appear when a seed germinates. It grows downward into the soil, anchoring the seedling. In gymnosperms and dicotyledons (angiosperms with two seed leaves), the radicle becomes a taproot.

Detailed explanation-5: -Taproot systems feature a single, thick primary root, called the taproot, with smaller secondary roots growing out from the sides. Fibrous root systems have many small branching roots, called fibrous roots, but no large primary root. 05-Mar-2021

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