NCERT Solutions For Class 9 Science Chapter 6 Tissues

NCERT Solutions for class 9 Chapter-06 Tissues: The chapter on Tissues is important for students approaching the home exams. This article introduces NCERT solutions designed to help students explain the concepts of further learning and how to write to get good grades on exams. The solutions are presented in very simple language for ease of understanding.

NCERT CBSE Chapter 06 Tissues of Class 9 explain a group of cells that possess similar structures and perform a specific function. In some simple multicellular organisms e.g. sponges, there is a devoid of tissues or if present, poorly differentiated. Multicellular organisms that are highly advanced have specialized tissues. Tissues give shape to the body and help it in the conservation of heat and store energy. Revise the basic concepts of Tissues for quick revision and class notes.

NCERT Solutions For Class 09 Chapter 06 of Page 61

Q1: What is a Tissue?

Answer:

Tissue is a group of cells that have a similar structure and perform a specific function.

Q2: What is the utility of tissues in multicellular organisms?

Answer:

Tissues provide structural and mechanical strength and aid in the division of labor in multicellular organisms. They also help conserve heat and store energy.

NCERT Solutions For Class 09 Chapter 06 of Page 65

Q1: Name the types of simple tissues.

Answer:

Simple tissues are the tissues that are made up of only a single type of cell that looks similar to each other. There are three types of simple tissues i.e. parenchyma, collenchyma, and sclerenchyma.

Q2: Where is apical meristem found?

Answer:

The apical meristem is present at the growing tips of roots and shoots. It is responsible for root and shoots development.

Q3: Which tissue makes up the husk of coconut?

Answer:

The coconut shell consists of sclerenchyma tissue. The sclerenchyma cells are stretched and dead. Their cell wall is made of lignin. They are found in the husks of seeds and nuts and in the veins of leaves. They guarantee mechanical support to the plant.

Q4: What are the constituents of phloem?

Answer:

The constituents of phloem are: 

1. Sieve tubes
2. Companion cells
3. Phloem fibers
4. Phloem parenchyma.

NCERT Solutions For Class 09 Chapter 06 of Page 69

Q1: Name the tissue responsible for the movement of our body.

Answer:

Muscular tissue is responsible for the movement of our body.

Q2: What does a neuron look like?

Answer:

A neuron consists of a cell body (also known as soma), dendrites, and one axon. The cell body is a compact structure. The axon and dendrites are extended from the soma. Dendrites are tree-like projections emerging from the cell body.

👁 Neuron Structure

Q3: Give three features of cardiac muscles.

Answer:

Three features of cardiac muscles are:

1. Striated i.e. alternate light and dark bands are present
2. Branched and uninucleated
3. Involuntary i.e. not in our control or will

Q4: What are the functions of areolar tissue?

Answer:

The functions performed by areolar tissue are:

1. They store fat.
2. They provide support to protect organs and muscles.
3. They help to bind the skin together (cement).

NCERT Solutions For Class 9 Chapter 06 

Q1: Define the term ’tissue’.

Answer:

Tissue is a group of cells that have a similar structure and perform a specific function.

Q2: How many types of elements together make up the xylem tissue? Name them.

Answer:

The xylem tissues are made up of cells which are known as their elements. They are:

1. Tracheids
2. Vessels or tracheae
3. Xylem parenchyma
4. Xylem scleroderma (Xylem fibre) 

Q3: How are simple tissues different from complex tissues in plants?

Answer:

Differences between simple and complex tissues in plants are:

Simple tissues	Complex tissues
They are made up of one type of cells	They are made up of different types of cells
All cells perform similar functions	All cells perform different functions

Q4: Differentiate between parenchyma, collenchyma, and sclerenchyma on the basis of their cell wall.

Answer:

Differences among parenchyma, collenchyma, and sclerenchyma are:

Parenchyma	Collenchyma	Sclerenchyma
Consists of a thin cell wall	Consists of an unequally thin cell wall	Consists of a thick and rigid cell wall
The cell wall is made up of cellulose	The cell wall is made up of cellulose and pectin	The cell wall is made up of lignin

Q5: What are the functions of the stomata?

Answer:

The functions of the stomata are:

• They exchange gases, i.e. oxygen and carbon dioxide, with the atmosphere.
• They promote perspiration and give the plant a cooling effect.

Q6: Show the difference between the three types of muscle fibers diagrammatically.

Answer:

Differences among the three types of muscle fibers:

👁 Types of Muscles

Types of muscular tissues	Structure	Location
Striated	They have striations i.e. alternate light and dark bands, cylindrical in shape	Hand, legs (skeletal system)
Unstriated	They don't have striations i.e. bands, spindle-shaped	Walls of internal organs
Cardiac	They have striations, cylindrical branched	Heart

Q7: What is the specific function of the cardiac muscle?

Answer:

Cardiac muscles perform the following functions:

1. Involuntary rhythmic contraction of the heart
2. Pumping of blood 

Q8: Differentiate between striated, un-striated, and cardiac muscles on the basis of their structure and site/location in the body.

Answer:

Differences among striated, un-striated, and cardiac muscles on the basis of their structure and site/location in the body are:

Types of muscles	Structure	Site/location
Striated muscle	They have striations i.e. alternate light and dark bands	Hand, legs (skeletal system)
Unstriated muscle	They don't have striations i.e. bands	Walls of internal organs
Cardiac muscle	They have striations	Heart

Q9: Draw a labeled diagram of a neuron.

Answer:

Labeled diagram of Neuron:

👁 Neuron Structure

Q10: 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.

Answer:

• (a) Squamous epithelium
• (b) Tendon
• (c) Phloem
• (d) Adipose tissue
• (e) Blood 
• (f) Nervous tissue

Q11: Identify the type of tissue in the following:

Skin, the bark of a tree, bone, the lining of the kidney tubule, and vascular bundle.

Answer:

1. Skin- Stratified squamous epithelial tissue
2. The bark of tree- Protective tissue and cork
3. Bone- Connective tissue
4. The lining of kidney tubule- Cuboidal epithelial tissue
5. Vascular bundle- Conducting tissue (xylem and phloem)

Q12: Name the regions in which parenchyma tissue is present.

Answer:

1. Parenchyma tissues are present in the mesophyll cells of the leaves.
2. They are also present in the cortex (outer layers) and pith (innermost layers) of the stems and roots.
3. They form many soft tissues of fruits.

Q13: What is the role of the epidermis in plants?

Answer:

Epidermis provide protection to the plant and make cuticle that prevents excessive water loss and entry of pathogens.

Q14: How does the cork act as a protective tissue?

Complete the following chart.

👁 Permanent Tissue

Answer:

👁 Permanent Tissue

NCERT Solutions for Class 9 Science Ch 6

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