Plant and Animal Tissues

Solutions for Biology, Class 7, ICSE

Long Answer Questions

8 questions

Question 1(i)

Distinguish between the following pairs on the basis of the words indicated in the brackets [].

Simple permanent tissue and complex permanent tissue [cellular organisation]

Long Answer Questions

Answer:

Differences between Simple permanent tissue and complex permanent tissue on the basis of cellular organisation:

Simple Permanent tissueComplex Permanent tissue
Simple permanent tissues are made up of a single type of cell.Complex permanent tissues are composed of different types of cells working together.

Question 1(ii)

Distinguish between the following pairs on the basis of the words indicated in the brackets [].

Striated and unstriated muscular tissue [location]

Long Answer Questions

Answer:

Differences between Striated and unstriated muscular tissue on the basis of location:

Striated muscular tissueUnstriated muscular tissue
Striated muscles are found in the arms, legs, face, neck, etc.Unstriated muscles are located in the walls of the intestine, muscles of the iris of the eye, skin, lining of blood vessels, urinary bladder, uterus, etc.

Question 1(iii)

Distinguish between the following pairs on the basis of the words indicated in the brackets [].

Xylem and phloem [structural components]

Long Answer Questions

Answer:

Differences between Xylem and phloem on the basis of structural components:

XylemPhloem
Xylem is formed of thick-walled, tubular and often dead cells. The xylem tissue consists of tracheids, vessels, xylem parenchyma and xylem fibres.Phloem is formed of living tubular cells. The phloem consists of sieve tubes, companion cells, phloem parenchyma, and phloem fibres.

Question 1(iv)

Distinguish between the following pairs on the basis of the words indicated in the brackets [].

Bone and cartilage [function]

Long Answer Questions

Answer:

Differences between Bone and cartilage on the basis of function:

BoneCartilage
Bone provides framework, support and protection to the body and helps in movement. Hence, it is the main supportive structure of vertebrates.Cartilage covers the ends of bones, and gives support to certain organs such as nose, ear and trachea. It also provides flexibility, and reduces friction between bones at joints.

Question 1(v)

Distinguish between the following pairs on the basis of the words indicated in the brackets [].

Blood and lymph [blood corpuscles]

Long Answer Questions

Answer:

Differences between Blood and lymph on the basis of blood corpuscles:

BloodLymph
The cellular part of the blood includes the red blood corpuscles, white blood corpuscles, and the platelets.Lymph contains some leukocytes or white blood cells that have oozed out of the blood capillaries. It lacks red blood cells and blood platelets.

Question 2

Draw a neat and labelled diagram of the "basic structural and functional unit of Nervous tissue".

Long Answer Questions

Answer:

Diagram of the "basic structural and functional unit of Nervous tissue" is given below:

With the help of a suitable diagram describe the structure of a neuron. Nervous System, Concise Biology Solutions ICSE Class 7.

Question 3

Study the figures given below and answer the following questions :

Study the figures given below and answer the following questions : Concise Biology Solutions ICSE Class 7.
Study the figures given below and answer the following questions : Concise Biology Solutions ICSE Class 7.
Study the figures given below and answer the following questions : Concise Biology Solutions ICSE Class 7.

(i) Identify the kind of tissues shown as A, B and C.

(ii) Write one specific location of each in the human body.

(iii) Mention one common function of all.

(iv) Write one structural difference between the tissues A and B.

(v) Which of these two tissues are not under the control of our will ?

Long Answer Questions

Answer:

(i) The tissues shown in figures A, B, and C are:
     A → Striated muscles
     B → Unstriated muscles
     C → Cardiac muscles

(ii) One specific location of each in the human body:

  • Striated muscles are found in face.
  • Unstriated muscles are found in the iris of the eyes.
  • Cardiac muscles are found only in the walls of the heart.

(iii) All the muscle types can contract and relax. Thus, they help the body in all its movements and locomotion.

(iv) One structural difference between the tissues A and B:

Striated musclesUnstriated muscles
Striated muscles are skeletal, and stripped. They are attached to the bones.Unstriated muscles are smooth, and unstripped.

(v) Unstriated muscles are not under the control of our will.

Question 4

The figures given below represent three kinds of supporting tissues in plants.

The figures given below represent three kinds of supporting tissues in plants. Concise Biology Solutions ICSE Class 7.

A

The figures given below represent three kinds of supporting tissues in plants. Concise Biology Solutions ICSE Class 7.

B

The figures given below represent three kinds of supporting tissues in plants. Concise Biology Solutions ICSE Class 7.

C

(i) Mention the name of tissues (A), (B) and (C).

(ii) Write one structural difference between the tissues A and B.

(iii) Which of these tissues is located in the petiole of a leaf ?

(iv) Write one functional difference between the tissues A and C.

(v) Name the tissue in which the cells are long, narrow, thick-walled and dead.

Long Answer Questions

Answer:

(i) The name of tissues (A), (B) and (C) are:
    A → Parenchyma
    B → Collenchyma
    C → Sclerenchyma

(ii) One structural difference between Parenchyma and Collenchyma:

ParenchymaCollenchyma
Parenchyma is composed of large thin walled cells, usually with intercellular spaces.Collenchyma is made up of living cells which are elongated and are thick at the corners or edges.

(iii) Collenchyma is located in the petiole of a leaf.

(iv) One functional difference between Parenchyma and Sclerenchyma:

ParenchymaSclerenchyma
Parenchyma stores food material.Sclerenchyma provides a rigid mechanical and structural support to the plant.

(v) Sclerenchyma is composed of cells that are long, narrow, thick-walled and dead.

Objective Type Questions

19 questions

Question 1(i)

A group of similar cells to perform a specific function forms a:

  1. Organ
  2. Species
  3. Organ system
  4. Tissue

Answer

Tissue

Reason — Similar cells organise to form tissue and perform a specific function.

Objective Type Questions

Answer:

Question 1(ii)

The small fine branches given out from the cell body of a nerve cell are:

  1. Dendrites
  2. Cyton
  3. Axon
  4. Neurons

Answer

Dendrites

Reason — Dendrites are fine hair-like extensions from cyton.

Objective Type Questions

Answer:

Question 1(iii)

Fluid connective tissue of humans is:

  1. Blood and cartilage
  2. Lymph and plasma
  3. Blood and lymph
  4. Stroma and matrix

Answer

blood and lymph

Reason — Blood (cells+plasma) and Lymph are the fluid connective tissue that are concerned with transportation of oxygen, glucose and amino acids etc.

Objective Type Questions

Answer:

Question 1(iv)

Tissues organise to form :

  1. Organ system
  2. Organs
  3. Organism
  4. Cells
Objective Type Questions

Answer:

Organs

Reason — Tissues organise to form organs.

Question 1(v)

In which of the plant tissues, cells actively divide to form new cells ?

  1. Parenchyma
  2. Sclerenchyma
  3. Meristematic tissue
  4. Protective tissue
Objective Type Questions

Answer:

Meristematic tissue

Reason — Meristematic tissues are made up of actively dividing cells. Their only function is to produce more cells leading to the growth of the plant body.

Question 1(vi)

Which of the following tissues consists of dead cells ?

  1. Collenchyma
  2. Meristems
  3. Parenchyma
  4. Sclerenchyma
Objective Type Questions

Answer:

Sclerenchyma

Reason — Sclerenchyma is composed of long, narrow and thick-walled dead cells to provide strength to the plant parts.

Question 1(vii)

Which of the following tissues is found in the lining of the trachea ?

  1. Ciliated epithelium
  2. Cuboidal epithelium
  3. Columnar epithelium
  4. Squamous epithelium
Objective Type Questions

Answer:

Ciliated epithelium

Reason — In the lining of the trachea, the columnar epithelium has developed cilia. Such an epithelium is called ciliated epithelium.

Question 1(viii)

Which of the following is not a kind of a fibrous connective tissue ?

  1. Areolar tissue
  2. Cartilage
  3. Tendons
  4. Ligaments
Objective Type Questions

Answer:

Cartilage

Reason — Cartilage is a Supportive connective tissue. It covers the ends of bones, and gives support to certain organs.

Question 1(ix)

The non-cellular part of blood is :

  1. Lymph
  2. Serum
  3. Plasma
  4. Tissue fluid
Objective Type Questions

Answer:

Plasma

Reason — Plasma is the non-cellular (liquid) part of the blood.

Question 1(x)

The tissue in which the cells are filled with fat globules is :

  1. Epithelial tissue
  2. Adipose tissue
  3. Nervous tissue
  4. Areolar tissue
Objective Type Questions

Answer:

Adipose tissue

Reason — Adipose tissue contains cells filled with fat globules.

Question 2

State whether the following statement are True or False.

  1. A tissue is formed of only one type of cells.
  2. Only one type of tissue forms an organ.
  3. Permanent tissue is made up of undifferentiated and dividing cells.
  4. Meristematic tissue is found at the growing tips of a plant.
  5. Phloem is formed of dead tubular cells.
Objective Type Questions

Answer:

  1. True

  2. True

  3. False
    Corrected statement — Permanent tissue is made up of differentiated and non-dividing cells.

  4. True

  5. False
    Corrected statement — Phloem is formed of living tubular cells.

Question 3

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 corners in ............... tissue.
  5. Parenchyma is composed of large ............... cells.
Objective Type Questions

Answer:

  1. tissues
  2. conducting
  3. vascular
  4. collenchyma
  5. thin-walled

Question 4

Match the items given in Column A with those given in Column B:

Column AColumn B
(i) Fibrous connective tissue(a) blood
(ii) Fluid connective tissue(b) cartilage
(iii) Supportive connective tissue(c) connects a bone to another bone
(iv) Ligament(d) areolar tissue
(v) Tendon(e) connects a muscle with a bone
Objective Type Questions

Answer:

Column AColumn B
(i) Fibrous connective tissue(d) areolar tissue
(ii) Fluid connective tissue(a) blood
(iii) Supportive connective tissue(b) cartilage
(iv) Ligament(c) connects a bone to another bone
(v) Tendon(e) connects a muscle with a bone

Question 5

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

Column A (Tissue)Column B (Function)
(i) Epithelial tissue(a) movement
(ii) Connective tissue(b) protection
(iii) Vascular tissue(c) messages
(iv) Nervous tissue(d) support
(v) Muscular tissue(e) transport
Objective Type Questions

Answer:

Column A (Tissue)Column B (Function)
(i) Epithelial tissue(b) protection
(ii) Connective tissue(d) support
(iii) Vascular tissue(e) transport
(iv) Nervous tissue(c) messages
(v) Muscular tissue(e) movement

Question 6

Name the kind of tissue that

  1. Carries oxygen around your body

  2. Brings about movement in animals

  3. Transports food to different parts of a 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

  8. is found on the surface of roots, stems and leaves.

  9. is composed of elongated cells, that are thick at the corners.

  10. is composed of dead cells, that provides strength to the plant parts.

  11. is richly located in the brain and spinal cord.

  12. is striated and branched.

Objective Type Questions

Answer:

  1. Carries oxygen around your body — Fluid connective tissue

  2. Brings about movement in animals — Muscular tissue

  3. Transports food to different parts of a plant — Phloem

  4. Transports water in plants — Xylem

  5. Supports an animal's body — Supportive connective tissue

  6. Binds different tissues together — Fibrous connective tissue

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

  8. is found on the surface of roots, stems and leaves — Protective Tissue

  9. is composed of elongated cells, that are thick at the corners — Collenchyma

  10. is composed of dead cells, that provides strength to the plant parts — Sclerenchyma

  11. is richly located in the brain and spinal cord — Nervous tissue

  12. is striated and branched — Cardiac muscular tissue

Question 7

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 bearing hair-like cilia on their free surface.

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 bearing hair-like cilia on their free surface. Plant and Animal Tissues, Concise Biology Solutions ICSE Class 7.

(a) ..............

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 bearing hair-like cilia on their free surface. Plant and Animal Tissues, Concise Biology Solutions ICSE Class 7.

(b) ..............

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 bearing hair-like cilia on their free surface. Plant and Animal Tissues, Concise Biology Solutions ICSE Class 7.

(c) ..............

Objective Type Questions

Answer:

(a) Cuboidal epithelium

(b) Columnar epithelium

(c) Ciliated epithelium

Question 8

Given below are sets of four terms. Choose the odd one and write the category for the remaining terms :

  1. Ligaments, Cardiac muscles, Tendons, Areolar tissue.
  2. Collenchyma, Protective tissue, Sclerenchyma, Parenchyma.
  3. Cuboidal tissue, Connective tissue, Columnar tissue, Ciliated tissue.
  4. Striated, Cartilage, Cardiac, Unstriated muscle.
  5. Cytons, Axons, Tendons, Dendrons.
Objective Type Questions

Answer:

  1. Odd one — Cardiac muscles
    Category of the remaining terms — Fibrous Connective tissues

  2. Odd one — Protective tissue
    Category of the remaining terms — Supporting tissues

  3. Odd one — Connective tissue
    Category of the remaining terms — Epithelial tissues

  4. Odd one — Cartilage
    Category of the remaining terms — Muscular tissues

  5. Odd one — Tendons
    Category of the remaining terms — Parts of a Nerve cell/Neuron

Question 9

Arrange the following terms in a proper logical sequence :

  1. Organ system, Tissues, Cells, Organisms, Organs.
  2. Cambium layer, Pith, Outer Bark, Inner bark.
Objective Type Questions

Answer:

  1. Cells, Tissues, Organs, Organ system, Organisms.
  2. Pith, Cambium layer, Inner bark, Outer bark.

Question 10

Note the relationship between the first two words and suggest a suitable word/words for the fourth place:

  1. Bones : Skull :: Cartilage : ............... .
  2. Covering : Epithelial :: Contractile : ............... .
  3. Xylem : Vessels :: Phloem : ............... .
  4. Cuboidal epithelium : Absorption :: Columnar epithelium : ............... .
  5. Parenchyma : Stores starch :: Chlorenchyma : ............... .
Objective Type Questions

Answer:

  1. Bones : Skull :: Cartilage : Trachea.
  2. Covering : Epithelial :: Contractile : Muscular.
  3. Xylem : Vessels :: Phloem : Sieve tubes.
  4. Cuboidal epithelium : Absorption :: Columnar epithelium : Secretion.
  5. Parenchyma : Stores starch :: Chlorenchyma : Performs photosynthesis.

Short Answer Questions

5 questions

Question 1

Define the terms given below:

  1. Tissue
  2. Organ
  3. Organ system
  4. Sclerenchyma
  5. Cartilage
Short Answer Questions

Answer:

  1. Tissue — A group of similar cells which are specialised to perform specific function is known as tissue. For example muscle tissue, skin tissue.

  2. Organ — A differentiated structure formed by group of similar tissues, which is specialised to perform a specific function is called an organ.

  3. Organ system — An organ system is a group of organs that work together to perform a specific function or set of functions in the body. For example, the digestive system.

  4. Sclerenchyma — Sclerenchyma is a simple supportive permanent tissue composed of long, narrow and thick-walled dead cells. It provides strength to the plant parts.

  5. Cartilage — Cartilage is a supportive connective tissue that covers the ends of bones, and gives support to certain organs like the nose, ear, and trachea. It consists of a clear ground substance (matrix), which contains a large number of spaces, each occupied by one or more cells.

Question 2

Name the following:

  1. 3 kinds of supporting tissues in plants.
  2. 2 kinds of supportive connective tissues in animals.
  3. 2 kinds of complex permanent tissues.
  4. 4 kinds of fibrous connective tissues.
  5. 3 kinds of muscular tissues.
Short Answer Questions

Answer:

  1. Parenchyma, Collenchyma, Sclerenchyma
  2. Cartilage and Bone
  3. Xylem and Phloem
  4. Areolar tissue, Adipose tissue, Tendons, and Ligaments
  5. Striated muscles, Unstriated muscles, and Cardiac muscles

Question 3

Write the exact location of each of the following tissues :

  1. Collenchyma
  2. Meristematic tissue
  3. Squamous epithelium
  4. Cardiac muscles
  5. Nervous tissue
Short Answer Questions

Answer:

  1. Collenchyma is found in the leaf stalks and below the epidermis of stems.

  2. Meristematic tissues are found at all growing points in a plant, like the tip of roots, stems and branches, where growth in length occurs.

  3. Squamous epithelium is found in the cells of the outer layer of skin.

  4. Cardiac muscles are found only in the walls of the heart.

  5. Nervous tissue constitutes the nervous system.

Question 4

Mention the specific function of each of the following tissues :

  1. Areolar tissue
  2. Parenchyma
  3. Xylem
  4. Tendon
  5. Adipose tissue
Short Answer Questions

Answer:

  1. Areolar tissue — Areolar tissue binds our skin to the underlying tissue.

  2. Parenchyma — They store food material and also provide temporary support to the plant.

  3. Xylem — Xylem cells transport water and minerals absorbed by the roots from the soil, upward to the leaves.

  4. Tendon — Tendons connect muscles to bones at joints. They are rich in white fibres.

  5. Adipose tissue — Adipose tissue forms padding under the skin which acts as an insulation for retaining body heat.

Question 5

How do you rank the following with respect to a cell, tissue, organ or organism?

  1. Amoeba
  2. Euglena
  3. Skin
  4. Lungs
  5. Neuron
  6. Cardiac muscles
Short Answer Questions

Answer:

  1. Amoeba: Organism (unicellular)
  2. Euglena: Organism (unicellular)
  3. Skin: Organ
  4. Lungs: Organ
  5. Neuron: Cell
  6. Cardiac muscles: Tissue