Chhattisgarh State Class 9 Science Chapter 7 Solution

Chhattisgarh State Board Class 9 Science Chapter 7 Multicelluar Structure : Tissue Exercise Multiple Choice, Fill in the Blanks, Questions and Answers here.

Chhattisgarh State Class 9 Science Chapter 7 Solution

1) Choose the right option

(i) Grouping of plant tissues on the basis of function of conducting substances through them-

(a) xylem and parenchyma (b) xylem and phloem

(c) phloem and dermal tissue (d) parenchyma and arrenchyma.

Ans: – option (b) xylem and phloem.

(ii) Tissues are

(a) groups of cells (b) cell and cytoplasm

(c) groups of cells and their surrounding fluid (d) none of these.

Ans: – option (a) group of cells.

(iii) Lignin deposits are seen in one of the following tissues

(a) parenchyma (b) collenchyma

(c) chlorenchyma (d) sclerenchyma.

Ans: – option (d) sclerenchyma.

2) Fill in the blanks

(i) ………xylem and phloem……………….. tissue carries water and mineral salts in plants.

(ii) …………. Epithelium………………… tissue is found in the inner lining of our mouth.

(iii) ……….. Skeletal…………. and ……. smooth………….. tissues render support and movement to our body parts.

3) What are tissues?

Ans: – The group of cells in a plant and animal body is known as the tissue. Tissue played an important role for making our body.

4) Write about the function of any 3 types of tissues.

Ans: – The tissue are different types like muscular tissue, connective tissue, epithelial tissue, nervous tissue. Their function is –

• Nervous tissue transfers the signal from the different receptors to the main control unit and vies versa.
• The connective tissue like the blood transfer the water and important ingredients from to the cell.
• Muscular tissue forms the different muscles in our body.

5) Write about the importance of division of labour among tissues of multicellular organisms.

Ans: – The different tissue in body can de different types of work. Some makes the body structure, some control the different parts of the body, some just transport the different material from one place to other places in a body. So, we clearly see that the tissue divided their work.

6) Write some commonly observable examples of sclerenchyma tissue.

Ans: – The sclerenchyma tissue is seen in different types of cover of plant like the covering of seeds, the covering of nuts, the coconut covering is also this tissue.

7) Why is blood called a connective tissue?

Ans: – The blood is known as connective tissue. The human cell isconsisted of different types of cells like RBC, WBC and platelets and all this are connected in different parts of the body by the blood. So, the blood is connected to every part of the body for transporting different material and for this it is known as connective tissue.

8) Write a note on the historic context of our knowledge of tissues.

Ans: –  The discoveries of scientist in year after year makes us available the knowledge of different types of tissue in the plant and animal tissue. The tissue in plant like parenchyma, sclerenchyma, collenchyma. The tissue in human body is connective tissue, muscular tissue, nervous tissue etc.

9) Complete the flow chart given below.

Ans: –

10) ‘There is a deep connection between the structure and function of tissues’. Justify this statement.

Ans: – The structure of body makes with the division of cell. This cell is divided and from a new cell by this a whole body is made up and we also known that a group of cells is known as tissue. So, the tissue and structure are connected to each other. The tissue makes a body complete.

11) Group plant tissues on the basis of their characters and function.

Ans: –

12) What are the different groups into which animal tissues have been divided? What is the basis of such a grouping?

Ans: –

13) What are the other groups into which you may organize plant or animal tissues? What would be the basis of your grouping?

Ans: – The plant tissue is organized in the parenchyma, sclerenchyma, collenchyma, xylem, phloem.  The plant tissue is considered as the structure of the plant body and working. The human tissue are different types like nervous tissue which control body activity, connective tissue which control the flow of important material, muscular tissue makes body structure etc. So, we can clearly differentiate the tissue according to their different purpose of working in plant and animal body.