Tissues: Plant and Animal Tissues Short Answer Biology Class-9 ICSE Selina Publishers Solutions Chapter-3. Step By Step ICSE Selina Concise Solutions of Chapter-3 Tissues: Plant and Animal Tissues with Exercise-3 including MCQs, Very Short Answer Type, Short Answer Type, Long Answer Type and Structured/Application Questions Solved . Visit official Website CISCE for detail information about ICSE Board Class-9.
Tissues: Plant and Animal Tissues Exe-3 Short Answer Biology Class-9 ICSE Concise Selina Publishers
| Board | ICSE |
| Publications | Selina Publication |
| Subject | Biology |
| Class | 9th |
| Chapter-3 | Tissues: Plant and Animal Tissues |
| Book Name | Concise |
| Topics | Solution of C. Short Answer Type |
| Academic Session | 2023-2024 |
C. Short Answer Type
Tissues: Plant and Animal Tissues Class-9 Biology Concise Solutions
Page 31
Question 1.
Name any one body part where ciliated epithelium is found in humans. What is its function?
Answer:
Ciliated columnar epithelium is found in the lining of trachea. This epithelium has thread-like projections called cilia at their free ends. The cilia constantly keep lashing and move the materials which enter this organ.
Question 2.
Define the terms:
(a) tissue
(b) organ
(c) Organs system
(d) Lymph
(e) neuron
Answer:
(a) tissue: A tissue is a group of cells that are similar in structure and are organized together to perform a specific task. Tissues are of four types: muscle, epithelial, connective and nervous.
(b) organ: In biology, an organ (from the Latin “organum” meaning an instrument or tool) is a collection of tissues that structurally form a functional unit specialized to perform a particular function.
(c) Organs system: An organ system is a biological system consisting of a group of organs that work together to perform one or more functions.
(d) Lymph: The clear fluid flowing through the lymphatic system that serves to bathe and nourish the tissues of the body. It is composed of blood plasma that has leaked out through the capillaries into the tissues.
(e) Neuron: A cell of the nervous system. Neurons typically consist of a cell body, which contains a nucleus and receives incoming nerve impulses, and an axon, which carries impulses away from the cell body.
C. Short Answer Type
Tissues: Plant and Animal Tissues Class-9 Biology Concise Solutions
Page 32
Question 3.
Write the specific locations of the following tissue in plants/animals.
(a) Sclerenchyma
(b) Collenchyma
(c) Ciliated columnar epithelium
(d) Cardiac musles
Answer:
(a) Sclerenchyma is a tissue that surrounds vascular tissues in stems, in the veins of leaves, and on the surface of seeds and nuts. The plant is strengthened by the sclerenchyma.
(b) Found in young stems, under the epidermis, leaf veins, and petiole. Also observed in avocado fruit hypodermis.
(c) The ciliated columnar epithelium is found in sperm ducts, lining the trachea, bronchi, kidney tubules, respiratory tract, and oviducts.
(d) Cardiac muscle tissue is found only in the heart of animals.
Question 4.
List the tissues found in the human heart.
Answer:
(1) Muscular tissue (Cardiac muscles)
(2) Epithelial tissue (Lining of blood vessels of the heart)
(3) Connective tissue (Fluid connective tissue in the form of red blood corpuscles)
Question 5.
Can you consider a cluster of eggs as a tissue? Why?
Answer:
A tissue is a group of similar cells from the same origin that together carry out a specific function. An egg is a zygote or a cell but a cluster of eggs cannot be considered as a tissue as it does not form an organ like a tissue. Instead it gives rise to a new individual organism if gets fertilised.
Question 6.
Name the three kinds of muscles found in the human body. In each case, name one region in the body where they are found.
Answer:
(1) Striated muscles: Provide the force for locomotion and all voluntary movements of the body. These muscles are found in the limbs.
(2) Unstriated muscles: Provide movements for the passage of food in the intestines. These muscles are found in iris of the eye, lining of blood vessels, urinary bladder, etc.
(3) Cardiac muscles: Provide rhythmic contraction and relaxation movements. These muscles are found only in the heart.
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