Basic Science Solutions for Class 6 Science Chapter 9 About Flowering Plants are provided here with simple step-by-step explanations. These solutions for About Flowering Plants are extremely popular among Class 6 students for Science About Flowering Plants Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers from the Basic Science Book of Class 6 Science Chapter 9 are provided here for you for free. You will also love the ad-free experience on Meritnation’s Basic Science Solutions. All Basic Science Solutions for class Class 6 Science are prepared by experts and are 100% accurate.

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Flowering plants can be classified into three categories - herbs, shrubs and trees - on the basis of their sizes and stems.

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A tap root is the main root which grows vertically downwards from the base of the stem.

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The main function of the leaf of a plant is to manufacture food and interchange gases with the air.

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A whorl refers to the circular arrangement of leaves, petals, sepals, etc., around a common axis. A flower has four whorls.

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When the veins in a leaf of a plant are arranged to form a network, it is said have a reticulate venation.

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Turnip, carrot, radish and sweet potato are modified roots which store food.

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The stem of a potato plant is modified to store food.

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The leaves of cactus are modified into spines to prevent loss of water and to safeguard the plant from its predators.

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Passiflora or the passion flower plant climbs with the help of its leaf tendrils.

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Roots perform the following functions:

  1. They hold a plant firmly to the ground.
  2. They absorb water and minerals from the soil.
  3. They prevent the soil from being blown away by the wind or washed away by the rain.

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Roots of some plants get modified to perform additional functions, such as storage of food or offering extra support. Following are the two functions performed by modified roots:

(i) Storage of food
Examples: Carrot and radish are modified roots that store food.

(ii) Providing extra support
Examples: Prop roots, stilt rots and climbing roots are modified to offer extra strength and support to the plants.



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Following are the functions performed by the stem:

  1. It holds the plants upright and supports the branches.
  2. It bears leaves, flowers and fruits.
  3. It conducts water and minerals from the roots to the leaves.
  4. It conducts food from the leaves to the other parts of the plants.

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Simple Leaves Compound Leaves
They have a single leaf blade. The leaf blade of these leaves is divided into leaflets.
Example: Leaves of banyan and peepal Example: Leaves of neem and gulmohar

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Veins not only provide support to a leaf but also help in transporting water, minerals and food to and from the leaf.
Following are the two types of venation found in different leaves:
(a) Parallel venation
(b) Reticulate venation

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A flower consists of the following parts:
(a) Pedicel: It is the stalk of a flower.
(b) Thalamus: It is the uppermost swollen part of the pedicel.
(c) Sepals: These are the green protective outgrowths from the thalamus.
(d) Stamen: It is the male part of the flower that consists of a stalk-like filament with a swollen tip called anther.
(e) Pistil: It is the female part of the flower that comprises ovary, style and stigma.
(f) Carpel: It is a flask-like structure at the centre of the flower, attached to the stalk.

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Herbs Shrubs Trees
These are very small plants. These are medium-sized plants (8-9 feet). These are tall perennial plants.
They have soft, green stems. They have thin yet hard and woody stems. They have thick, hard and woody stems called trunks.
Examples: Petunia and sweet pea Examples: Jasmine and Henna Examples: Mango and guava

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1. Fibre-like roots coming out of the base of a stem are called fibrous roots.
2. The portion of the stem between any two nodes is called an internode.
3. The protective covering on the trunks of the trees is called bark.
4. Plants with leaves showing reticulate venation have tap roots.
5. Grass shows parallel venation.
6.

7. The part of a stem which grows into a branch is called axillary bud.



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(d) buds

Buds, present on the stem, give birth to leaves.

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(c) apical buds

Apical buds are present at the tip of a stem or its branches.

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(d) stem tendrils

The thread-like coiled growths with the help of which plants belonging to the gourd family climb are called stem tendrils.

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(a) thalamus

Thalamus is the swollen part at the base of a flower from where the whorls radiate.

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(c) Stamens

Stamen is the male part of a flower.

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Spines a. Attached to the thalamus 1. Protection for bud
c, d, 3 b. Modified stem 2. Reticulate venation
Tendrils in pea c. Prickly pear 3. Modified for defence
d, 5 d. Modified leaf 4. Broad leaves
Scale leaves e. Onion 5. Modified for support
e, 6 f. Modified root 6. Modified to store food
Sepal g. Spinach  
a, 1    
Tap root    
g, 5, 2    



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