Note on Modification of Different Parts of Plant

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Plants are of different types. Plants is a living organism of the kind exemplified by trees, shrubs, herbs, grasses, ferns, and mosses, typically growing on a permanent site, absorbing water and inorganic substances through its roots, and synthesizing nutrients in its leaves by photosynthesis using the green pigment chlorophyll. Plants can be both aquatic and terrestrial. Plants are diverse, but parts of plants are same. Roots, stem and leaves are main parts of plants. These parts are modified according to an adaptation of plants.

Modification of Roots

Parts of plants below the soil is root. The color of roots is of white, grey and light yellow. Root are of two types:

  1. Tap root system
  2. Fibrous root system

According to adaptation plants, modifies its roots. Roots are modified for following purpose:

  1. For storage of food
  2. For mechanical support
  3. For vital functions

For storage of food

Let's take an example modification of radish, turnip and carrot for storage of food.

  1. Upper and lower parts of radish are thinner, but the middle part of the root is thicker in radish.
  2. In turnip, the upper part of turnip is round and broader but the lower part is narrower.
  3. In carrot, upper part is broader and the lower part is thinner and sharper like the pencil.

For mechanical support

Peepal tree has broad base in order to support the huge tree. Bamboo also has a broad base. Bamboo grows longer and it needs firm support which is provided by its broad base. Similarly, maize and sugarcane also has different kind of root to support the plant as maize and sugarcane.

For Vital function

Some plants modify its stem to absorb the food from another plant. Plants growing in the marshy region has its roots extended outside to support respiration. Some plants conduct photosynthesis through the roots. Aquatic plants like Hydrilla have the root that can store air to float in water.

Modification of stem

Part of the plant just above the ground is the stem. Branches, leaves and flowers emerge from the stem. Stem modifies itself according to their adaptation.

  1. Underground Modification:Potato stem is inside the ground which has a thick stem to store food. Similarly, onion and garlic also have a thick stem as it stores food.
  2. Sub-aerial Modification:Some plants have soft and weak stem. Stems of grass help in reproduction.
  3. Aerial Modification:Some stems act as leaves and stores food and water in their stems. Example: cactus. Some stems are like the thread. Some stem is like enrolled wood. Green stems make foods and stores.

Modification of leaf

Leaves emerge from the stem. Leaf helps in photosynthesis and respiration. Leaves are modified in different forms according to an adaptation of plants. Some plants tend to have huge tendrils. Tendrils are usually coiled. Some leaves are modified into thorns which decrease the rate of transpiration. Thorns also protect the plants. Some leaves are as dry as paper. Some carnivorous plants have leaves with bladder to trap insects.

  • Roots, stem and leaves are main parts of plants.
  • Bamboo grows longer and it needs firm support which is provided by its broad base.
  • Branches, leaves and flowers are emerged from the stem.
  • Plants growing in the marshy region has its roots extended outside to support respiration.
  • Leaves are modified in different forms according to the adaptation of plants.
  • Potato stem is inside the ground which has a thick stem to store food.
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Very Short Questions

Parts of plants below the soil which captures minerals and water from the soil is called the root. The types of root are:

  1. tap root system
  2. fibrous root system

Roots are modified for following purpose:

  1. For storage of food
  2. For mechanical support
  3. For vital functions

Leaves emerge from the stem. Leaf helps in photosynthesis and respiration. Leaves are modified in different forms according to an adaptation of plants. Some plants tend to have huge tendrils. Tendrils are usually coiled. Some leaves are modified into thorns which decrease the rate of transpiration. Thorns also protect the plants. Some leaves are as dry as paper. Some carnivorous plants have leaves with bladder to trap insects.

The types of modification of a stem are:

  1. underground modification
  2. Sub-aerial modification
  3. Aerial modification

The roots of radish, turnip and carrot are modified in following ways:

  1. Upper and lower parts of radish are thinner, but the middle part of a root is thicker in radish.
  2. In turnip, the upper part of turnip is round and broader but the lower part is narrower.
  3. In carrot, upper part is broader and the lower part is thinner and sharper like a pencil.

Bamboo grows longer and it needs firm support which is provided by its broad base. So, bamboo has a broad base.

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  • Aerial modification is found in ______.

    onion
    cactus
    potato
    some grasses
  • Sub-aerial modification is found in ______.

    onion
    some grasses
    cactus
    potato
  • Underground modification is found in ______.

    some grasses
    bamboo
    onion
    cactus
  • ______ plants have leaves with bladder to trap insects.

    Herbivorous
    Carnivorous
    Omnivorous
    Consumers
  • ______ have root that can store air to float in water.

    Cactus
    Coconut
    Bamboo
    Hydrilla
  • ______ have broad base in order to support the huge tree.

    Cactus
    Bamboo
    Peepal tree
    Coconut
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Define modification of plant


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Hold the male and female of the plants

Hold the male and female parts of the plants


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Brittany

The grammar in this article is not the best. An example from the article, "Leaf helps in photosynthesis and respiration."


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