NCERT Solutions Class 9 Science Chapter 6

NCERT Solutions Class 9 Science Chapter 6: Tissues

Science as a subject is as fascinating as it is challenging. It requires a holistic approach to understanding the concepts and topics. The Class 9 Science helps elevate the understanding of science for the students who wish to make a career in the medical and engineering field. Students get introduced to many fundamentals of science. 

Class 9 Science Chapter 6: Tissues is an essential chapter for students. Students will be introduced to the functions and structure of the tissues. In addition, they will also learn about the different types of animal tissues, such as connective, muscle, nervous, and epithelial tissue. It also explains in detail the various connective tissues in plants, animals, and humans. 

Students can access Extramarks NCERT solutions  Class 9 Science Chapter 6. The solutions are provided in a chapter-wise format. Students will find it easy to understand the explanations for all the topics in the study content. They are explained in an easy language, with examples and diagrams. With the help of our NCERT solutions for Class 9 Science Chapter 6, students will understand better and score good grades.

Extramarks is one of the  leading online learning platforms in India, where lakhs of students refer to our study materials and NCERT solutions. Students looking for a better solution can refer to NCERT solutions Class 9 Science Chapter 6. The answers will help them to revise the complete syllabus and  get better academic results.

For the latest updates and exam-related news, students can visit our website. They can also access NCERT solutions Class 10, NCERT solutions Class 11 and NCERT solutions Class 12. 

Key Topics Covered in NCERT Solutions Class 9 Science Chapter 6:

NCERT solutions Class 9 Science Chapter 6 introduces the structure, shape, and growth pattern of tissues with diagrams. Further, students can learn to differentiate between the cells of animals, plants, and humans. Students will study two types of cells in Class 9 Science Chapter 6, including plant tissues and animal tissues. 

Some of the key topics featured in NCERT solutions Class 9 Science Chapter 6 are as below:

Introduction to tissues 

Tissues are groups of cells that have a similar origin and function. They are found in vast quantities in the mouth, nose, lungs, stomach, and intestines. They perform a critical role in digesting food and absorbing liquids.

Tissues can be classified as either connective tissue or epithelial tissue. Connective tissues are composed of cells called fibroblasts that form collagen fibres that give strength and stability to many structures like tendons, ligaments, tracheal cartilage, and the intervertebral discs between vertebrae.

Plant tissues 

Plants cannot move from one place or another. They must show locomotion to fulfil their needs. They have tissues made up of dead cells, which help maintain their mechanical strength. Further, they can withstand adverse conditions such as strong winds, storms, and floods.

They are also exposed to attacks by their enemies. For this reason, they have rigid cell walls made up of lignified cellulose, which prevent them from being eaten by nematodes, bacteria, and fungi. As a result, they can make these dead tissues into living ones. This is called the process of regeneration.

There are two types of tissues in plants, which are explained in NCERT solutions Class 9 Science Chapter 6. They are: 

  1. Meristematic Tissue:

Plant growth is limited to specific regions. This is because of the presence of meristematic tissue, a dividing tissue. Meristematic tissues can be further divided into apical (lateral) and intercalary, depending on their location.

  • Apical meristem refers to the meristem found at the apical or growth area. It mainly consists of the tips and ends, stems and roots. The apical meristem causes an increase in length.
  • The radial portion or stem containing lateral meristem can generally be found in the root's radial section. Therefore, the girth increase is due to lateral meristem.
  • The internodes and base of the leaves are where intercalary meristems appear. Intercalary meristem causes an increase in the length of the internode.

       2. Permanent Tissue: i) Simple Permanent Tissue & ii) Complex Permanent Tissue

Older meristematic cell types tend to lose their ability to divide and become permanent tissues. As a result, differentiation achieves a permanent size, shape, and function.

These cells can no longer divide, but they now serve a specific function: giving the plants strength, flexibility, and elasticity. These tissues can be divided into unique, permanent, and complex issues.

According to their function, the superficial permanent tissues can be divided into the collenchyma (parenchyma) and sclerenchyma (sclerenchyma).

  • Parenchyma is the most common simple permanent tissue. It is a living cell that is loosely packed. It is responsible for supporting plants and storing food. It may also contain chlorophyll and be able to perform photosynthesis. In these cases, it is called chlorenchyma. An aerenchyma is a form of parenchyma with large air cavities, like aquatic plants. Aerenchyma is responsible for buoyancy in aquatic plants. 
  • Collenchyma is elongated living cells that have tiny intercellular spaces. Collenchyma is found in the leaves and stems' peripheral regions. Further, it provides mechanical support and flexibility.
  • Sclerenchyma is a long, dead cell with lignin deposition in the cell wall. They have no intercellular space. Sclerenchyma can be found in vascular stem tissues, veins of leaves and hardcover of seeds and nuts. They provide strength for the plant.

To understand the tissues' key roles and functioning, students can refer to NCERT solutions Class 9 Science Chapter 6. 

Animal Tissues 

Animals, on the other side, can move between one place to find food, shelter, and mates. In addition, animals require more energy than plants. Furthermore, they have a lot of living tissues. Finally, animals have very uniform cell growth.

Types of animal tissues elaborated in NCERT solutions Class 9 Science Chapter 6 are: 

Epithelial tissues 

They form the covering of the external surfaces, organs and internal cavities of the animal body. Below are different types of epithelial tissues:

  • Simple squamous epithelium
  • Cuboidal epithelium
  • Columnar epithelium

Connective tissues: 

The connective tissues connect the various body organs. Below are few types of connective tissues:

  • Areolar tissue
  • Adipose tissue
  • Dense regular connective tissue
  • Skeletal tissue
  • Fluid tissue

Muscular tissues 

These tissues are the basis of almost all movements in the body.

  • Striated/Skeletal Muscles: All voluntary movements in the body are performed by the striated or skeletal muscles. These tissues are attached to the bones and are called skeletal. 
  • Striated/Smooth Muscles - Smooth or striated muscles can be observed in the internal organs and they perform nearly all involuntary movements. They are smooth, long, spindle-shaped, and uninucleate. They can be found in blood vessels and the alimentary canal.
  • Cardiac Muscles - Our entire heart is made up of cardiac muscles. They may look like striated muscles in structure, but they are branched and uninucleated with intercalated discs.
  • Connective tissues: These tissues are responsible for connecting various body parts. These tissues include blood, bones, cartilages, and ligaments.

Students can refer to our Extramarks NCERT solutions Class 9 Science Chapter 6, we have elaborated the characteristics of different animal tissues in detail. 

Nervous tissues

The entire brain, spinal cord, and nerves of our bodies are composed of nerve tissue. They are responsible for all sensations, consciousness, and emotions. The neuron is the cell that makes up the nervous system. A cell comprises three parts: a cell body, dendrite, and an axon.

NCERT Solutions Class 9 Science Chapter 6: Exercise &  Solutions

Our NCERT solutions will help students with their exam preparation. They can access  NCERT solutions by registering on our website. Then, students can clarify their doubts regarding the chapter. Finally, NCERT solutions Class 9 Science Chapter 6 offers theoretical explanations with diagrams and step-by-step answers to the questions. 

Class 9 Science Chapter 6 has numerous questions, including fill in the blanks, match the pair, true or false. Additional questions are at the end of the NCERT solutions Class 9 Science Chapter 6. It will help students to clarify their concepts and improve their learning experience. 

Students can access the exercise specific questions and their solutions which are covered in our Extramarks NCERT solutions Class 9 science Chapter 6:

  • Chapter 6: Exercise 6.1 Solutions: 15 Questions

Students can also explore NCERT solutions for other classes on our website: 

  • NCERT Solutions Class 1
  • NCERT Solutions Class 2
  • NCERT Solutions Class 3
  • NCERT Solutions Class 4
  • NCERT Solutions Class 5
  • NCERT Solutions Class 6
  • NCERT Solutions Class 7
  • NCERT Solutions Class 8
  • NCERT Solutions Class 9
  • NCERT Solutions Class 10
  • NCERT Solutions Class 11
  • NCERT Solutions Class 12

NCERT Exemplar for Class 9 Science:

Science is a fascinating subject and requires a thorough understanding of the concepts. To comprehend these concepts, answering various questions can be highly beneficial. It helps students understand the important points easily and make them revise quickly to cover the entire syllabus within the timeframe.

The NCERT Exemplar helps students develop their knowledge regarding the tissues. They offer a variety of questions, in each case, the level of difficulty varies. Questions include MCQs, fill in the blanks, and match the pair. Also, there are objectives, concise answer types, short answer types, and long answer types in Chapter 6.

Our NCERT solutions for Class 9 Science Chapter 6 include questions from the NCERT Exemplar. Students will be able to examine various sub-topics, including the different types of tissues and their functioning. They will also identify the differences between plant and animal tissues. 

Key Features of NCERT Solutions Class 9 Science Chapter 6:

The NCERT solutions are prepared by subject matter experts and experienced faculty. These Solutions undergo revision and refinement as per the latest CBSE curriculum and are thoroughly checked and approved by the experts. All the solutions for every subject are reliable and accurate.

The characteristics that we have included in our solutions to NCERT solutions Class 9 Science Chapter 6 are:

  • The solutions contain the answer to all the questions from Chapter 6 of the Class 9 Science. Our experienced faculty diligently follow the latest CBSE standards. Needless to say, they completely understand what is legitimate as per the board's standards. 
  • NCERT solutions Class 9 Science Chapter 6 is in a detailed format and contains all the required formation. The subject matter experts understand the key topics which students might find challenging while studying, therefore the solutions are prepared in such a way that they can get to the point answers without wasting much time on a single subject.
  • These solutions help students understand the concepts and not just blindly memorise them. In fact you will be able to understand every concept and answer any question easily. It requires regular practice and endless patience to achieve that level of excellence. Students swear by Extramarks solutions because of the absolute trust and confidence it has built over the years.
  • Extramarks leaves no stone unturned when it comes to providing the best learning material with unmatchable speed and accuracy for students irrespective of the class and subject. We have all the answers to your queries. This encourages the students to master the topic and increases their confidence in achieving a high grade.

Q.1 Define the term “tissue”.

Ans-

Tissue is defined as a group of similar cells that are arranged and designed to perform a specific function

Q.2 How many types of elements together make up the xylem tissue? Name them.

Ans-

Xylem tissue is a type of complex tissue. There are four types of elements that together make up the xylem tissue. The different types of elements are:

  1. Trachieds: tubular structure
  2. Vessels: tubular structures and along with trachieds they facilitate vertical conduction of water and minerals
  3. Xylem parenchyma: stores food and facilitate sideways conduction of water.
  4. Xylem fibres: supportive in function

Q.3 How are simple tissues different from complex tissues in plants?

Ans-

Character

Simple tissues

Complex Tissues

Composition of cells

Composed of only one type of cells

Composed of different types of cells

Origin and structure of cells

Common origin and structure

Different origin and structure

Function

Storage of food and supportive in nature

Transport water, minerals, sugar and metabolites within plant body

Examples

Parenchyma, Collenchyma, Sclerenchyma

Xylem and phloem

Q.4 Differentiate between parenchyma, collenchymas and sclerenchyma on the basis of their cell wall.

Ans-

Parenchyma

Collenchyma

Sclerenchyma

Cell walls are thin.

Cell wall is irregularly thickened at the corners.

Cell wall is uniformly thickened.

Cell wall is mainly composed of cellulose.

Pectin and hemicelluloses are the main constituents of the cell wall in this tissue.

The thick cell wall scelerenchyma are impregnated with lignin.

Q.5 What are the functions of the stomata?

Ans- 

Stomata perform the following two functions;

  1. They allow the exchange of gases (oxygen and carbon dioxide) between plants and atmosphere.
  2. They facilitate the release of water vapours from the leaves and hence regulate the process of transpiration.

Q.6 Diagrammatically show the difference between the three types of muscle fibres.

Ans-

Q.7 What is the specific function of the cardiac muscle?

Ans-

The specific function of cardiac muscle is to contract and relax rhythmically through the life and to facilitate the transportation of gases, nutrients and metabolites to various body parts through blood circulation.

Q.8 Differentiate between striated, unstriated and cardiac muscles on the basis of their structure and site/location in the body.

Ans-

Difference between striated, unstriated and cardiac muscles on the basis of their structure

Character

Striated muscles

Unstriated muscles

Cardiac muscles

Size and shape

Long and cylindrical

Long, narrow and spindle shaped

Short and cylindrical

Branching

Absent

Absent

present

Number nucleus present

Multinucleate

Uninucleate

Uninucleate

Position of nucleus

Peripheral

Central

Central

Striations

Present in the form of dark and light bands

Absent

Present in the form of faint bands

Edges of the cell

Blunt ends

Tapered end

Flat and wavy

Difference between striated, unstriated and cardiac muscles on the basis of their location

Striated muscles

Unstriated muscles

Cardiac muscles

Location

Tongue, hands, legs, etc.

Iris of the eye, ureters, bronchi, etc.

Heart

Q.9 Draw a lebelled diagram of a neuron.

Ans-

Labelled diagram of a neuron:

Q.10 Name the following

(a) Tissue that forms the inner lining of our mouth.

(b) Tissue that connects muscle to bone in humans.

(c) Tissue that transports food in plants.

(d) Tissue that stores fat in our body.

(e) Connective tissue with a fluid matrix.

(f) Tissue present in the brain.

Ans-

(a) Squamous epithelial tissue

(b) Tendon

(c) Phloem

(d) Adipose tissue

(e) Blood

(f) Nervous tissue

Q.11 Identify the type of tissue in the following skin, bark of tree, bone, lining of kidney tubule, vascular bundle.

Ans-

Name of the organ

Type of tissue present

Skin

Stratified squamous epithelial tissue

Bark of tree

Secondary meristem (cork)

Bone

Connective tissue

Lining of kidney tubule

Cuboidal epithelial tissue

Vascular bundle

Complex tissue: xylem and phloem

Q.12 Name the region in which parenchyma tissue is present.

Ans-

Parenchyma tissue is present in the following plant parts:

Stem, leaves, roots, flowers and vascular tissues.

Q.13 What is the role of epidermis in plants?

Ans-

Epidermis performs the following functions in plants:

  1. It covers the entire plant and protects all the parts of the plant.
  2. It secrets a waxy, water resistant layer on outer surface of the aerial parts of the plants and prevents water loss.
  3. It protects plants against mechanical injury and invasion of parasitic fungi.
  4. It possesses stomata that facilitate gaseous exchange between plant and the atmosphere and allows transpiration to take place.
  5. In roots, it aids in water absorption through the root hair present in root cells.

Q.14 How does the cork act as a protective tissue?

Ans-

Cork is a several layered thick outermost protective tissue present on mature plants. The cells of cork are compactly arranged without the intercellular spaces and are dead. A special chemical called suberin is present in the cell walls of the cork cells that make them impermeable to gases and water. Due to this, it protects plants against water loss. It also protects plants against mechanical injury and temperature extremes. It also protects plants against fungal diseases by not allowing the parasitic fungi to grow on the plants.

Q.15 Complete the table:

Ans-

For viewing question paper please click here

FAQs (Frequently Asked Questions)
1. Which topics are included in NCERT solutions Class 9 Science Chapter 6?

The topics included in the NCERT solutions are:

  • Are Plants and Animals Made of Same Types of Tissues?
  • Plant Tissues: Meristematic Tissue, Permanent Tissue – i) Simple Permanent Tissue, ii) Complex Permanent Tissue 
  • Animal Tissues: Epithelial Tissue, Connective Tissue, Muscular Tissue, Nervous Tissue

2. How to score better in the CBSE term-II Science examination?

Students can refer to the NCERT solutions Class 9 Science Chapter 6. Extramarks also offers NCERT solutions for secondary classes. It helps them clarify their doubts. Solving the solutions and Exemplar will help the students to enhance their preparation so that they are well prepared to face any question during the exam.