NCERT Solutions for Class 6 Science Chapter 7 Getting to know plants

1. Correct the following statements and rewrite them in your Notebook.

• Stem absorbs water and minerals from the soil.s

Ans: Roots absorb water and minerals from the soil.

• Leaves hold the plant upright.

Ans: Stem holds the plant upright.

• Roots conduct water to the leaves.

Ans: Stem conducts water to the leaves.

• The number of petals and sepals in a flower is always equal.

Ans: The number of petals and sepals in a flower may not always be equal.

• If the sepals of a flower are joined together, its petals are also joined together.

Ans: If the sepals of a flower are joined together, its petals are separate and not joined together.

• If the petals of a flower are joined together, then the pistil is joined to the petals.

Ans: If the petals of a flower are joined together, then the pistil is not necessarily joined to the petal.

1. Draw

1. Leaf

Ans:

2. A taproot

Ans:

3. A flower, you have studied for Table 7.3.

Ans:

2. Can you find a plant in your house or in your neighborhood, which has a long but weak stem? Write its name. In which category would you classify it?

Ans: Yes, there is a plant in our house which has a long but weak stem. Its name is jasmine and its comes in the category of climbers.

3. What is the function of a stem in a plant?

Ans: Function of stem are:

• They support various parts of plants i.e., branches, leaves, flowers, and fruits etc.

• They transport water and minerals from the roots to various parts of plants. 

• They are the storage for nutrients.

• They transport food from leaves to different parts of the plant.

• They give the plant stability i.e., hold the plant upright.

4. Which of the following leaves have reticulate venation? 

Wheat, Tulsi, Maize, Grass, Coriander, China rose.

 Ans: The leaves that have reticulate venation are-

• Tulsi

• Coriander

• China rose

5. If a plant has fibrous roots, what types of veneration do its leaves likely to have?

Ans: If a plant has fibrous roots, then its leaves are likely to have parallel venation.

6. If a plant has leaves with reticulate venation, the kind of roots will it have?

Ans: If a plant has leaves with reticulate venation, then it has tap roots.

7. Is it possible for you to recognize the leaves without seeing them? How?

Ans: Yes, it is possible. To know the type of the leaf, follow following steps:

• Just take the leaf.

• With the help of a pencil sketch on the leaf. Take the impression of the leaf on the paper.

• Thus, by this we can recognize the type of the leaf by seeing the leaf lines on the paper.

8. Write the name of the parts of the flower.

Ans: The parts of flower are-

• Sepals

• Petals

• Stigma

• Stamens

• Pistil

• Style

• Anther

• Androecium

• Gynoecium

9. Which of the following plants have you seen? Of those that you have seen, which ones have flowers?

Grass, Maize, Wheat, Chili, Tomato, Tulsi, Pipal, Shisham, Banana, Mango, Jamun, Guava, Pomegranate, Papaya, Banana, Lemon, sugarcane, Potato, Groundnut.

Ans: Yes, I have seen all these plants. Plants with flower are: 

• Chili

• Tomato

• Tulsi

• Mango

• Lemon

• Jamun

• Guava

• Pomegranate

• Papaya 

• Banana.

10.  Name the part of the plant which produces its food. Name this process.

Ans: Green leaves of the plants are responsible for making the food and the process is known as photosynthesis. It is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

11.  In which part of the flower, you are likely to find the ovary?

Ans: Ovary is a part of gynoecium and It is the lowermost and swollen part of the pistil.

12.  Name two flowers, each with joined and separated sepals.

Ans: Flowers with joined sepals are –

• Hibiscus (China rose)

• Periwinkle

Flowers with separated sepals are-

• Magnolia 

• Rose.

13.  The Names of plant parts are hidden in this grid. Search for them by going up, down, or even diagonally forward as well as backward. Have fun!

Ans: The plant parts that are hidden in this grid are as follows:

• Ovule

• Filament

• Vein

• Flower

• Ovary

• Stamen

• Sepal

• Midrib

• Fruit

• Stem

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NCERT Solutions for Class 6 Science Chapter 7 – Getting to Know Plants

Earth in the solar system is the only planet that has likely conditions for life to exist. The presence of oxygen and water is the primary cause behind this; however, we must not underestimate the unimaginable contribution of plants. Let’s have a look.

7.1 Herbs, Shrubs and Trees

Plants are classified into herbs, shrubs and trees. It is the thickness of the stem and the origin of the branches that state their classification. The stems of herbs are green and frail. In most cases, these are small plants without having many branches. Some of the examples include coriander, basil, oregano, thyme, mint, rosemary, parsley etc. Herbs lack woody stems, and thus, they are not as strong as trees. The heights are also not much taller when compared with shrubs or trees. Generally, herbs are no longer than a meter, and their life span is also too short. They hardly live for a season or two. Herbs are also flowering plants, and some of them have medicinal values. Herbs are known for their flowering scent. Herbs have nutritional benefits and also provide flavor when used in cooking. One typical example is the coriander leaves.

Shrubs

Any medium-sized plants are called shrubs. Compared with herbs, they are much bigger in width, height and breadth. They have skinny branches that start growing from the base. Some examples include lemon, rose, jasmine, aloe vera, blackberry etc. They are taller than herbs but shorter than trees. The stems of most shrubs are hard and woody; however, they are not as thick like trees. They can live up to many years, but the life span does not exceed when compared with trees.

Trees

Trees are much larger and taller than shrubs and herbs. They have stiff stems and the branches spread out after a certain height. They originate from a specific height above the ground. Some of the examples include Neem, Peepal, Coconut, Mango, Banyan, etc. A typical tree consists of a large main branch which is called trunk. The other branches originate from the main branch. The trees provide good shade to the ground from where they grow.

7.2 Stem

The stem of a plant is the passageway through which water travels to different parts of the plant. The minerals from the water are also passed through the stems. They have very thin tubes through which minerals and water is passed to leaves as well as every tip of the plant. The stem of a plant bears flowers, additional branches, fruits, leaves and buds. Considering the root as the source of minerals and water, it is the stem that supplies throughout the system. The transported minerals and water are converted to usable products for the process of photosynthesis.

7.3 Leaf

The sizes, shapes and color of leaves depend on the type of plants. The part that connects the leaves with a stem is called a petiole. The green part of the leaf is known as the lamina. If you notice clearly, you will find thin lines across the leaves, just like the main backbone and the other bones spreading sideways. These are called veins of a leaf. The main vein in the middle is known as midrib, and the design of veins is termed as leaf venation. Some leaves have parallel veins which help in performing specific functions.

7.4 Root

The root is one of the most vital parts. It is responsible for sipping valuable necessities for the plant. Among them, water and minerals are one of the most important products. Roots perform valuable functions which are crucial for the future growth of the plant. Roots play the role of anchor to the plants and help to stand firmly on the ground. This specifically bolsters the upright position of the plants. Roots are the storage house of important nutrients and food required for growth. Roots are categorized into two types. These are fibrous roots and taproots.

7.5 Flower

Flowers are the adorning part of a plant. They are colorful and seed-bearing parts of the plant. They grow right at the end of a stem. The color of the flowers mostly comes from the petals, and they form the broader part of a flower. They together form the Corolla of a flower. The leaf-like structure of a flower is called sepal and is responsible for enclosing the petals and providing protection to the flowers. It plays a crucial role in the process of protection, especially when a flower is in its bud form. The stamen of the flowers stays inside and can be seen when the petals are removed.

Exercise 7.5 total Solutions: 13 Questions (1 short question and 12 Long questions).

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