NCERT Solutions for Class 9 Science Unit 6

Tissues Class 9

Unit 6 Tissues Exercise Solutions

A group of cells, that are similar in structure and work together to achieve a particular function, forms a tissue. Types of plant tissues include meristematic and permanent tissues. Meristematic tissues are rapidly dividing tissues. Apical meristem is present at the apical or growing tips of stems and roots. Lateral meristem is present in the radial portion of the stem or root. Intercalary meristem occurs at the base of the leaves or at the internodes. Old meristematic cells lose the capacity to divide and transform into permanent tissues. Types of permanent tissues include parenchyma, collenchyma and sclerenchyma. Parenchyma containing chloroplasts are called chlorenchyma. Parenchyma containing large air cavities are called aerenchyma. Complex permanent tissues are made of more than one type of cells and are of 2 types-xylem and phloem.
Types of Animal Tissues include epithelial tissue, connective tissue, muscular tissue and nervous tissue. Epithelial tissues form a protective layer. Different types of epithelial tissues are classified based on their shape and function. Squamous epithelium are found in the organs to provide mechanical support. Columnar epithelium are found in the lining of the organs to facilitate the movement of nutrients. Glandular epithelium are found in the glands to produce secretions. Ciliated epithelium are found in the lining of the respiratory tract. Cuboidal epithelium are found in organs to provide mechanical support. Stratified epithelium are found in places of wear and tear. Connective tissue connects different organs. Different types of connective tissues are classified based on their shape and functions. Blood is a type of fluid connective tissue.
<< Previous Chapter 5 : The Fundamental Unit of Life Next Chapter 7 : Diversity in Living Organisms >>

Question : Solutions of Questions on Page Number : 69

Q1 :  

What is a tissue?


Answer :

Tissue is a group of cells that are similar in structure and are organised together to perform a specific task.

Answer needs Correction? Click Here

Q2 :  

What is the utility of tissues in multi-cellular organisms?


Answer :

In unicellular organisms, a single cell performs all the basic functions such as respiration, movement, excretion, digestion, etc. But in multicellular organisms, cells are grouped to form tissues. These tissues are specialised to carry out a particular function at a definite place in the body. For example, the muscle cells form muscular tissues which helps in movement, nerve cells form the nervous tissue which helps in transmission of messages. This is known as division of labour in multicellular organisms. It is because of this division of labour that multicellular organisms are able to perform all functions efficiently.

Answer needs Correction? Click Here

Q3 :  

Name types of simple tissues.


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q4 :  

Where is apical meristem found?


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q5 :  

Which tissue makes up the husk of coconut?


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q6 :  

What are the constituents of phloem?


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q7 :  

Name the tissue responsible for movement in our body.


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q8 :  

What does a neuron look like?


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q9 :  

Give three features of cardiac muscles.


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q10 :  

What are the functions of areolar tissue?


Answer :

Please Register/Login to get access to all solutions Facebook Login
<< Previous Chapter 5 : The Fundamental Unit of Life Next Chapter 7 : Diversity in Living Organisms >>

Exercise : Solutions of Questions on Page Number : 79

Q1 :  

Define the term "tissue".


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q2 :  

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


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q3 :  

How are simple tissues different from complex tissues in plants?


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q4 :  

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


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q5 :  

What are the functions of the stomata?


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q6 :  

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


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q7 :  

What is the specific function of the cardiac muscle?


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q8 :  

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


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q9 :  

Draw a labelled diagram of a neuron.


Answer :

Please Register/Login to get access to all solutions Facebook Login
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 :

Please Register/Login to get access to all solutions Facebook Login
Q11 :  

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


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q12 :  

Name the regions in which parenchyma tissue is present.


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q13 :  

What is the role of epidermis in plants?


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q14 :  

How does the cork act as a protective tissue?


Answer :

Please Register/Login to get access to all solutions Facebook Login
Q15 :  

Complete the table:


Answer :

Please Register/Login to get access to all solutions Facebook Login
<< Previous Chapter 5 : The Fundamental Unit of Life Next Chapter 7 : Diversity in Living Organisms >>

Science : CBSE NCERT Exercise Solutions for Class 9th for Tissues will be available online in PDF book form soon. The solutions are absolutely Free. Soon you will be able to download the solutions.

Popular Articles