{"id":4965,"date":"2023-03-17T06:39:39","date_gmt":"2023-03-17T06:39:39","guid":{"rendered":"https:\/\/theexampillar.com\/ncert\/?p=4965"},"modified":"2023-03-28T06:15:21","modified_gmt":"2023-03-28T06:15:21","slug":"ncert-solutions-class-9-science-chapter-6-tissues","status":"publish","type":"post","link":"https:\/\/theexampillar.com\/ncert\/ncert-solutions-class-9-science-chapter-6-tissues\/","title":{"rendered":"NCERT Solutions Class 9 Science Chapter 6 Tissues"},"content":{"rendered":"

NCERT Solutions Class 9 Science\u00a0<\/span><\/h2>\n

The NCERT Solutions in English Language for Class 9 Science Chapter – 6 (Tissues) <\/strong>has been provided here to help the students in solving the questions from this exercise.<\/span><\/p>\n

Chapter – 6 (Tissues)<\/span><\/h2>\n

Questions<\/strong><\/span><\/p>\n

1. What is a tissue?
\n<\/strong>Answer –\u00a0<\/strong>Tissue is a group of cells that are similar in structure and are organised together to perform a specific task.<\/span><\/p>\n

2. What is the utility of tissues in multicellular organisms?
\n<\/strong>Answer –\u00a0<\/strong>The use of tissues in multicellular organisms is to provide structural and mechanical strength as well as to allow division of labour.<\/span><\/p>\n

Questions<\/strong><\/span><\/p>\n

1. Name the types of simple tissues.
\n<\/strong>Answer –\u00a0<\/strong>The types of simple tissues are parenchyma, collenchyma, sclerenchyma and aerenchyma.<\/span><\/p>\n

2. Where is apical meristem found?
\n<\/strong>Answer –\u00a0<\/strong>Apical meristem is found at the tip of root or shoot of the plant.<\/span><\/p>\n

3. Which tissue makes up the husk of a coconut?
\n<\/strong>Answer –\u00a0<\/strong>The husk of coconut is made of sclerenchymatous tissue.<\/span><\/p>\n

4. What are the constituents of phloem?
\n<\/strong>Answer –\u00a0<\/strong>Phloem is a conducting or vascular tissue of the plants. Phloem is made up of four types of elements: sieve tubes, companion cells, phloem fibres and phloem parenchyma.<\/span><\/p>\n

Questions<\/strong><\/span><\/p>\n

1. Name the tissue responsible for movement of our body.
\n<\/strong>Answer –\u00a0<\/strong>Muscular tissue is a contractile tissue made up of muscles. This tissue is responsible for movement in our body.<\/span><\/p>\n

2. What does a neuron look like?
\n<\/strong>Answer –\u00a0<\/strong>A neuron consists of a cell body with a nucleus and cytoplasm, from which long thin hair like parts arise. Each neuron has a single long part called the axon, and many small, short branched parts called dendrite. An individual nerve cell is called neuron, it may be upto a metre long.
\n<\/span><\/p>\n

\"NCERT
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Structure of Neuron<\/span><\/span><\/strong><\/span><\/figcaption><\/figure>\n

3. Give three features of cardiac muscles.
\n<\/strong>Answer –\u00a0 <\/strong>The features of cardiac muscle are:<\/span>
\n(i) These muscles are involuntary.
\n<\/span>(ii) Cardiac muscle cells are cylindrical, branched and uninucleate.
\n<\/span>(iii) These show rhythmic contraction and relaxation throughout the life.<\/span><\/span><\/p>\n

4. What are the functions of areolar tissue?
\n<\/strong>Answer –<\/strong> Areolar tissue is a connective tissue which fills the space inside the organs, supports internal organs and helps in repair of tissues.<\/span><\/p>\n

Exercise<\/span><\/strong><\/span><\/p>\n

1. Define the term \u2019tissue\u2019.
\n<\/strong>Answer –<\/strong> Group of cells that are similar in structure and perform same function is called a tissue. E.g., phloem, xylem, blood are examples of tissue.<\/span><\/p>\n

2. How many types of elements together make up the xylem tissue? Name them.
\n<\/strong>Answer –\u00a0<\/strong>Xylem is a conducting or vascular tissue of the plants. It consists of four types of elements: (i) Tracheids (ii) Vessels; (iii) Xylem parenchyma; (iv) Xylem fibres.<\/span><\/p>\n

3. How are simple tissues different from complex tissues in plants?
\n<\/strong>Answer –\u00a0<\/strong>A simple tissue is made up of only one type of cells where as complex tissue is made up of different types of cells.<\/span><\/p>\n

4. Differentiate between parenchyma, collenchyma and sclerenchyma on the basis of their cell wall.
\n<\/strong>Answer –\u00a0<\/strong>The differences between cell walls of parenchyma, collenchymas and sclerenchyma are:<\/span><\/p>\n\n\n\n\n
Parenchyma<\/strong><\/span><\/td>\nCollenchyma<\/strong><\/span><\/td>\nSclerenchyma<\/strong><\/span><\/td>\n<\/tr>\n
Cell walls are thin and made up of cellulose<\/span><\/td>\nCell walls are thick at the edges due to the deposition of pectin<\/span><\/td>\nCell walls are thick due to the deposition of lignin<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

5. What are the functions of the stomata?
\n<\/strong>Answer –\u00a0 <\/strong>Stomata perform following functions:<\/span>
\n(i) They allow exchange of gases (CO2<\/sub>\u00a0and O2<\/sub>) with atmosphere.
\n<\/span>(ii) They help in the process of transpiration.<\/span><\/span><\/p>\n

6. Show the difference between the three types of muscle fibres diagrammatically.
\n<\/strong>Answer –\u00a0<\/strong>There are three types of muscle fibres, they are:
\n<\/span><\/p>\n\n\n\n\n
Cardiac muscles<\/strong><\/span><\/td>\nSmooth muscles<\/strong><\/span><\/td>\nStriated muscles<\/strong><\/span><\/td>\n<\/tr>\n
\"NCERT<\/span><\/td>\n\"NCERT<\/span><\/td>\n\"NCERT<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

1. Cardiac muscles
\n<\/strong><\/span><\/p>\n