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Class 6 Science Chapter 7 Notes

Chapter Name: - Getting to Know Plants

Class 6 Science Chapter 7 Notes

Section - A (Keywords)

Explain the following Keywords

The plants with a weak stem that need support to climb up.

Explanation

The stem of these plants is too weak to help them stand upright.

The plants with a weak stem that spread on the ground.

The root system with thin and similar-sized roots with many small branches are called fibrous root. Thin roots have parallel venation in their roots.

Examples: –
Palms, beans, grass, wheat, and rice

Small plants with green and soft stems are called herbs. Usually, herbs do not have many branches.

It is the expanded, green part of the leaves.

Horizontal smaller root emerged from the taproots are called lateral roots.

 

The thick central line of the leaf.

A small bead-like structure inside the ovary is called an ovule.

The parallel arrangement of veins in leaves is called parallel venation. Plants having parallel venation in the leaves have fibrous roots.

Explanation: –
The central thick line of a leaf is called the midrib. The line going out of the midrib are called veins. If these lines have a net-like structure then they are called reticulate venation whereas the parallel arrangement of veins is called parallel venation.

Petal is the colourful leaf-like parts of the flower.

Petiole is the part of the leaf that provides the connection to the stem.

The process of preparation of food in the plants, in the presence of sunlight and with the help of a green coloured substance present in the leaves.

Plants take carbon dioxide from the atmosphere, and water from the soil. They release Oxygen in this process 

The innermost part of a flower consisting of stigma, style and ovary is called the pistil.

The net-like structure of veins in the leaves is called reticulate venation.
Plants having reticulate venation in the leaves have taproots.

The green leaf-like structures around the bottom of the flower are called sepals.

The plants in which the branches develop near the base of the stem are called bush or shrubs. Shrubs are small-sized plants with a hard but not very thick stem.

Thin slender-like structure of the flower consisting of anther and filament is called the stamen.

A single main root of the plants is called the taproot. The horizontal roots emerging from taproot are called lateral roots.

The process of evaporation of water through the leaves of the plants is called transpiration.

The tall plants with a thick and hard stem having multiple branches are called trees.

Thin lines in the leaves are called veins.

It may be of parallel-type or net-like in the leaves.

Aiye Samjhein
Class 6 Science Chapter 7 Notes

Section - B (Question - Answer)

Question 1

Correct the following statements and rewrite them in your notebook.

(a) Root absorbs water and minerals from the soil.

(b) Stems hold the plant upright.

(c) Stems conduct water to the leaves.

(d) The number of petals and stamens in a flower is not always equal.

(e) If the sepals of a flower are joined together, its petals are not also joined together.

(f) If the petals of a flower are joined together, then the pistil is not necessarily joined to the petal.

Question 2

Drawing of a  flower, a leaf, and taproot

 

class 6 science chapter 7 notes - flower leaf taproot
class 6 science chapter 7 notes – flower leaf taproot

Question 3

Yes, the money plant is one such type of plant which has a long but weak stem. It is a climber.

Question 4

Function of stem

1. The stem holds leaves, flowers, and fruits.

2. The stems transport the water from the soil to the leaves for the preparation of food.

3. The stems transport the food prepared by the leaves to the different parts of the plant.

Question 5

If the leaves have a net-like design on both sides of the midrib, then this venation is called reticulate.

Tulsi, coriander(dhania), and China rose have reticulate venation. Other leaves have parallel venation. 

Question 6

If a plant has fibrous roots, then its leaves have parallel venation.

Question 7

If a plant has leaves with reticulate venation, then it has taproots.

Question 8

Yes, we can find out the type of root a plant have by looking at the impression of its leaf on a sheet of paper.

For leaves having reticulate venation – tap root

For leaves having parallel venation – fibrous root

Aiye Samjhein
Class 6 Science Chapter 7 Notes

Question 9

The parts of the flower are:-

Sepal

Petals

Stamens (anther, filament)

Pistils (Ovary, style, stigma)

Question 10

Plants that have flowers are: –

maize, wheat, chili, tomato, tulsi, peepal, shisham, banyan, mango, jamun, guava, pomegranate, papaya, banana, lemon, sugarcane, potato

Question 11

The part of the plant which produces food is leaves. Leaves produce food with the process of photosynthesis.

Question 12

Question 13

flowers with joined sepals – china rose, tomato.

flowers with separated sepals – rose, lily.

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Class 6 Science Chapter 7 Notes

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Class 6 Science Chapter 7 Notes

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