NCERT Solutions For Class 9 Science Chapter 6

NCERT Solutions For Class 9 Science Chapter 6 Tissues

1. Exercise Questions
2. Intext Questions

NCERT Solutions For Class 9 Science Chapter 6 Tissues on this step-by-step Tissues answer guide . In some of State Boards and CBSE schools, students are taught thru NCERT books. As the chapter comes to an end, students are requested few questions in an exercising to evaluate their knowledge of the chapter. Students regularly want guidance dealing with those NCERT Solutions. It’s most effective natural to get stuck withinside the exercises while solving them so that you could assist students rating better marks, we have provided grade by grade NCERT answers for all exercises of Class 9 Science Tissues so you can be searching for assist from them. Students have to solve those exercises carefully as questions withinside the very last exams are requested from those so these exercises at once have an impact on students’ final score. Find all NCERT Solutions for Class nine Science Tissues below and prepare for your tests easily.

NCERT Solution for class 9 Science  

Chapter 6-Tissues

Exercise Questions

 

Q. 1. Define the term ” tissue ” .

Ans . Tissue is a group of cells which are similar in structure and function , and performs a specific task .

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

Ans . ( i ) There are four types of elements which makes the xylem tissue .

( ii ) These are : ( 1 ) tracheids , ( 2 ) vessels , ( 3 ) xylem fibres and ( 4 ) xylem parenchyma .

( iii ) Xylem tracheids and vessels perform the function of transport of water and minerals .

( iv ) Xylem parenchyma takes part in sideways transport of water and stores food .

( v ) Xylem fibres provide mechanical support to the tissue .

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

Ans . Difference between simple and complex tissues :

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

Ans . Differences between parenchyma , collenchyma and sclerenchyma on the basis of their cell wall are :

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Q. 5. What are the functions of the stomata ?

Ans . ( i ) Stomata are microscopic pores in the epidermis of plant . These pores are surrounded by two kidney – shaped cells called guard cells .

( ii ) Functions of stomata :

( a ) It helps in the exchange of gases with the atmosphere .

( b ) It also plays an important role in transpiration ( a process of water loss in the form of water vapour ) .

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

Ans . Differences between striated , unstriated and cardiac muscles :

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

Ans . The specific function of cardiac muscle is to control the contraction and relaxation of the heart . They do not get fatigued .

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

Ans . Differences between striated , unstriated and cardiac muscles :

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Q. 9 . Draw a labelled diagram of a neuron .

Ans . Labelled diagram of neuron is :

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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 ) Epithelial tissue .

( b ) Tendons .

( 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 . ( i ) Skin : Stratified squamous epithelial tissue is found in skin .

( ii ) Bark of tree : Simple Permanent tissue

( iii ) Bone : It is a type of connective tissue .

( iv ) Lining of kidney tubule : It is composed of cuboidal epithelial tissue .

( iv ) Vascular Bundle : It is a complex permanent tissue .

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

Ans . The parenchyma tissue is present in leaves , fruits and flowers .

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

Ans . ( i ) The entire outermost layer of cells that make outer covering around a plant body is called epidermis .

( ii ) It performs the following function :

( a ) Act as a protective tissue of the plant body .

( b ) Allows gas exchange through stomata .

( c ) Protects plant against mechanical injury .

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

Ans . ( i ) Cork cells are dead and compactly arranged without intercellular spaces . Thus , it protects the plant against mechanical injury .

( ii ) The cell wall has deposition of suberin that makes them impervious to gases and water , water . Thus , it prevent loss of water by evaporation .

Q. 15. Complete the following flow chart :

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Intext Questions

 

Page 69

Q. 1. What is a tissue ? [ NCERT Q. 1 , Page 69 ]

Ans . Tissue is a group of cells which are similar in structure and function , and performs a specific task .

Q. 2. What is the utility of tissues in multicellular organisms ? [ NCERT Q. 2 , Page 69 ]

Ans . ( i ) In multicellular organisms , cells are grouped to form tissues , which perform a specific task . For example , muscle cells form muscular tissue , which helps in movement and epithelial cells form epithelial tissue , which provides protection to the surface . This is known as division of labour in multicellular organisms .

( ii ) It is because of this division of labour , multicellular organisms are able to perform all functions efficiently . On the other hand , in unicellular organisms all the functions , such as digestion , movement and excretion , are performed by single cell .

Page 74

Q. 3 . Name types of simple tissue . [ NCERT Q. 1 , Page 74 ]

Ans . Simple tissues are of three types . These are parenchyma , collenchyma and sclerenchyma .

( i ) Parenchyma : This tissue forms the basic packing tissue . The cells of this tissue are living , thin walled and relatively unspecialised .

( ii ) Collenchyma : Cells of collenchyma are living , elongated and irregularly thickened at the corners with very little intercellular spaces . It provides flexibility to plants .

( iii ) Sclerenchyma : The cells of this tissue are dead , long and narrow with thickened walls due to deposition of lignin .

Q. 4. Where is apical meristem found ? [ NCERT Q. 2 , Page 74 ]

Ans . ( i ) Apical meristem is found in growing tips of stems and roots .

( ii ) Apical meristematic tissue is responsible for the initiation of growth in different plant parts .

Q. 5. Which tissue makes up the husk of coconut ? [ NCERT Q. 3 , Page 74 ]

Ans . ( i ) The husk of a coconut tree is made up of sclerenchymatous tissues .

( ii ) The cells of sclerenchyma are dead , long and narrow with thickened walls due to deposition of lignin .

( iii ) Sclerenchyma tissue gives rigidity and stiffness to the plant .

Q. 6 . What are the constituents of phloem ? [ NCERT Q. 4 , Page 74 ]

Ans . ( i ) Phloem has four components : ( 1 ) sieve tubes , ( 2 ) companion cells , ( 3 ) phloem parenchyma and ( 4 ) phloem fibres .

( ii ) Phloem is a conducting tissue that transports the soluble organic food prepared during the process of photosynthesis .

Page 77

Q. 7 . Name the tissue responsible for movement in our body . [ NCERT Q. 1 , Page 77 ]

Ans . ( i ) Skeletal muscles of muscular tissue are responsible for movement in our body .

( ii ) These muscles are attached to bones and their contraction helps in locomotion , facial expressions , posture and other voluntary movements of the body .

Q. 8 . What does a neuron look like ? [ NCERT Q. 2 , Page 77 ]

Ans . ( i ) Neuron or nerve cell is the largest cell in the body . It is composed of cell body , dendrite and axon .

( ii ) Cell body : It contains a nucleus and cytoplasm . It is a place where the signals from the dendrites are joined and passed on .

( iii ) Dendrites : They are hair – like projections that arise from cell body . It receives impulses from other nerve cells .

( iv ) Axon : A single long part called axon arises from the cell body . It conducts the impulses away from the cell body . Transmission of impulses is done by a co – ordinated function of dendrites and axon .

Q. 9. Give three features of cardiac muscles . [ NCERT Q. 3 , Page 77 ]

Ans . Three features of cardiac muscles are :

( i ) These muscles are involuntary and control the rhythmic contraction and of the heart .

( ii ) The cells of these muscles are cylindrical , branched and uninucleate .

( iii ) They contract rapidly but do not get fatigued .

Q. 10. What are the functions of areolar tissue ? [ NCERT Q. 4 , Page 77 ]

Ans . The functions of areolar tissue are :

( a ) It supports many internal delicate organs .

( b ) It takes part in repairing of tissues of the skin and muscles .

( c ) It fills the spaces inside the organs , thus acts as a packing tissue between the organs .

 

Benefits of NCERT Solutions For Class 9 Science Chapter 6 Tissues

NCERT Solutions For Class 9 Science Chapter 6 Tissues contains extremely important points, and for each chapter, each concept has been simplified to make it easier to remember and increase your chances of achieving excellent exam results. Exam Preparation References Here are some tips on how these solutions can help you prepare for the exam.

  1. This helps students solve many of the problems in each chapter and encourages them to make their concepts more meaningful.
  2. NCERT Solutions For Class 9 Science Chapter 6 Tissues encourage you to update your knowledge and refine your concepts so that you can get good results in the exam.
  3. These NCERT Solutions For Class 9 Science Chapter 6 Tissues are the best exam materials, allowing you to learn more about your week and your strengths. To get good results in the exam, it is important to overcome your weaknesses.
  4. Most of the questions in the exam are formulated in a similar way to NCERT textbooks. Therefore, students should review the solutions in each chapter in order to better understand the topic.
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Tips & Strategies for Class 9 Exam Preparation

  1. Plan your course and syllabus and make time for revision
  2. Please refer to the NCERT solution available on the cbsestudyguru website to clarify your concepts every time you prepare for the exam.
  3. Use the cbsestudyguru learning app to start learning to successfully pass the exam. Provide complete teaching materials, including resolved and unresolved tasks.
  4. It is important to clear all your doubts before the exam with your teachers or Alex (an Al study Bot). 
  5. When you read or study a chapter, write down algorithm formulas, theorems, etc., and review them quickly before the exam.
  6. Practice an ample number of question papers to make your concepts stronger. 
  7. Take rest and a proper meal.  Don’t stress too much. 

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