Selina solutions concise biology class 7 icse Solutions for Chapter 1 plant and animal tissues

Q1) Put a tick against the most most appropriate alternative in the following statements.

(i) A group of similar cells to perform a specific function forms a

(a) organ

(b)species

(c) organ system

(d) tissue

(ii)The fine branches given out from the cell body of a nerve cell are

(a) dendrites

(b) cyton

(c) axon

(d) neurons

(iii) Fluid connective tissue of humans is

(a) blood and cartilage

(b) lymph and plasma

(c) blood and lymph

(d) stroma and matrix

Q1) Define the following terms :

1. Tissue

2. Organ

Q2) Anwer the following :

(i) What is a meristematic tissue ? How is it different rom permanent tissues ?

(ii) Which living material would you take to demonstrate meristematic tissue ?

(iii) What is the function of meristematic tissue ?

Q3) State whether the following statements are True or False:

(i) A tissue is formed of only one type of cells.

(ii) Only one type of tissue forms an organ.

(iii) Permanent tissue is made up of undifferentiated and dividing cells.

(iv) Meristematic tissue is found at growing tips of a plant.

(v) Phloem is formed of dead tubular cells.

Q4) Fill in the blanks by selecting suitable words from the list given below:

( Thin-walled, collenchyma, vascular , tissues, conducting )

1. A group of different __________ working together to perform a function is called an organ.

2. Xylem and phloem form the __________ tissue.

3. Conducting tissue is also called__________ tissue.

4. Cells are elongated and thick at the comers in __________ tissue.

5. Parenchyma is composed of a large __________ cell.

Q5) Match the items given is Column A with those given in Column B :

Q6) How do you rank the following among cells, tissues, organs or organism ?

1. Amoeba

2. Euglena

3. Skin

4. Lungs

5. Neuron

6. Cardiac muscles

Q7) Each of the tissues listed in Column A is related to one of the functions given in Column B. Match the line correct pairs by drawing

Q8) Name the kind of tissue that

1. Carries oxygen around your body.

2. Brings about movements in animals.

3. Transports food to different parts of plant.

4. Transports water in plants.

5. Supports an animal’s body.

6. Binds different tissues together.

7. Conducts messages from one part of the body to another.

Q9) Based on the following information , identify the three types of epithelial tissue in the figures given below :

(i) Cuboidal epithelium:It consists of a single layer of cuboidal cells.

(ii) Columnar epithelium:It is composed of tall,cylindrical cells with oval nuclei usually placed at the base of the cells.

(iii) Ciliated epithelium:It consists of cells being hair-like cilia on their free surface.

Q10) Write three differences between the two principal vascular tissues found in plants.