NCERT Solutions for Class 6 Science Chapter 7 - Getting to Know Plants
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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 much strong like 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 flavour when used in cooking. One typical example is the coriander leaves.
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 much thick like trees. They can live up to many years, but the life span does not exceed when compared with 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.
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.
The sizes, shapes and colour 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.
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 categorised into two types. These are fibrous roots and taproots.
Flowers are the adorning part of a plant. They are colourful and seed-bearing parts of the plant. They grow right at the end of a stem. The colour 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).
Key Features of NCERT Solutions for Class 6 Science Chapter 7
To maintain the learning pace with online classes (as of now) consider downloading CBSE Class 6 Science Chapter 7 getting to know plants from the site. The process of downloading is straightforward, and the lessons are also apt to acquire the right set of knowledge to stay ahead in the class. The key features are:
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FAQs (Frequently Asked Questions)
Q1. How to Find out the Type of Root a Plant has?
Ans. The root type can be determined by looking at the vein’s structure and impression of a leaf on a sheet of paper. When a leaf has parallel venation, it is likely to have roots in fibrous form. On the other hand, if a leaf has reticulate venation, it is likely to have taproots.
Q2. What is the Function of Leaves?
Ans. The primary function of leaves is to perform the process of photosynthesis. It is a crucial process for all plant’s lifelines. The flat part of a leaf receives maximum sunlight that helps to cook the food (water, minerals and other nutrients) required for the plants.