This post provides you a complete solution of Chapter 6 Tissues Class 9 for Rajasthan Board of Secondary Education.
This Solutions of
Class 9 Chapter will help you understand all the topics and to solve homework and home assignments in an
easy way.
|
Board |
RBSE |
|
Subject |
Science |
|
Chapter |
Tissues |
|
No. of Intext questions |
10 |
|
No. of End exercise questions |
15 |
|
Prescribed Book |
NCERT Science |
Tissues Questions- Answers
Intext Questions
Answers of Questions on Page 61
Q.
What is a tissue?
Answer
Tissue
is a group of related cells that have a common
origin
and perform a common function.
Q.2What is the utility of tissues in multi-cellular
organisms?
Answer
In multi-cellular organisms, the different types of tissues
performs different functions. Since a particular group of
cells called tissue perform a particular function, they do
it very efficiently.
Thus, multi-cellular organisms possess
a definite division of labour.tissues provide structural
strength, mechanical strength and division of labour.
Answers of Questions on Page 65
Q.1 Name types of
simple tissue.
Answer
These are three types of simple tissue –
1. Parenchyma
2. Collenchyma
3. Sclerenchyma
Q.2 Where is apical
meristem found?
Answer
Apical meristem is found at root and
stem apex.
Q.3 Which tissue makes
up the husk of coconut?
Answer
Sclerenchymatous fibres.
Q.4 What are the
constituents of phloem?
Answer
The four constituents of phloem are –
(a) Sieve tube
(b) companion cells
(c) phloem parenchyma and
(d) phloem fibres
Answers of Questions on Page 69
Q.1 Name the tissue
responsible for the movement in our body?
Answer
Muscular tissues and nervous tissues.
Combination of both tissues is responsible for the movement in our body.
Q.2 What does neuron
look like?
Answer
Neuron look like a miniature tree with
thin hair like parts arising from its ends.
Neuron has a cell body with a
nucleus and cytoplasm. Each neuron has a single long part called axon. A neuron
has many short hair like structure called dendrites.
Q.3 Give three features
of cardiac muscles.
Answer
(i) The cells of cardiac muscles are cylindrical, branched and uninucleate.
(ii) These are involuntary and can’t controlled by us.
(iii)These muscles show rhythmic contraction and relaxation throughout the life.
Q.4 What are the
functions of areolar tissue?
Answer
Areolar tissue support internal
organs and helps in repair of the tissues.they are connective tissues fond in
animals and present between skin and muscles, around blood vessels and nerve
and in bone marrow. These tissues fill the space inside the organs.
Answers of End Exercise
Questions on Page 70-71
Q.1 Define the term
“tissue”.
Answer
Tissue is a group of related cells
that have a common origin and perform a common function.
Q.2 How many types of
elements together make up the xylem tissue? Name them.
Answer
(i) Tracheids
(2) Vessels
(3) Xylem parenchyma
(4)
Xylem fibres.
Q.3How are simple
tissues different from complex tissues in plants?
Answer
Differences between simple and
complex tissue.
Q.4 Differentiate between paranchyam, collenchyma and
sclerenchyam on the basis of the cell wall.
Answer
Differences between parenchyma, collenchyma and
sclerenchyma.
Q.5 What are the
functions of stomata?
Answer
Functions of stomata:
(i)They are sites where exchange of gases occurs
between the plant interior and external environment.
(ii) Major part of transpiration occurs through stomata.
(iii)They regulate both gaseous exchange and
transpiration.
Q.6 Diagrammatically
show the difference between the three types of muscle fibres.
Answer
Muscle fibres are of three types-
(i).Striated muscle
(ii). Smooth muscle
(iii). Cardia muscle
(i). Striated muscle
a. The cells of these muscles are long,
cylindrical with many nuclei and unbranched.
b. They are connected to bones.
c. They are voluntary muscles.
a. They
are involuntary muscles.
b. They are found in alimentary canal and lungs.
c. They are spindle shape and have single nucleus.
(iii). Cardiac
muscles
a.They are found in
heart.
b.They are
involuntary muscles.
c. They are cylindrical, branched, and uni-nucleate.
Q.7 What is the
specific function of the cardiac muscle?
Answer
Cardiac muscle contracts and relaxes rapidly and
continuously with a rhythm. Their rhythmic contraction
and
relaxation helps in pumping of blood.
Q.8Differentiate between striated, un-striated and cardiac
muscles on the basis of their structure and site/location in
the body.
Answer
Q.9 Draw a labelled
diagram of a neuron.
Answer
Q.10 Name the
following:
(a) Tissue that forms inner lining of our mouth
(b) Tissue that connects muscle to bone in humans.
(c) Tissue that transports food in plants.
(d) Tissue that stores fat in our body.
(e) Connective tissue with a fluid matrix.
(f) Tissue present in the brain.
Answer
(a) Stratified squamous epithelium.
(b) Tendon
(c) Phloem
(d) Adipose tissue
(e) blood
(f) Nervous tissue
Q.11 Identify the type of tissue in the following: skin
bark of tree, bone, lining of kidney tubule, vascular
bundle.
Answer
Skin: Epithelial tissue.
Bark
of tree: Cork (Protective tissue)
Bone: connective tissue
Lining of kidney tubule: Cuboidal epithelium tissue
Vascular bundle: Complex or conducting tissue (xylem
and phloem)
Q.12Name the region in which parenchyma tissue is
present.
Answer
Parenchyma is found in almost all non-woody parts of
the plant such as-cortex, pith, medullary rays of stem,
cortex and pith of roots, leaf flowers, pith of fruits etc. it
is a basic
packing tissue.
Q.13 What is the
role of epidermis in plants?
Answer
Epidermis acts as protective tissue in plants and protects
underlying tissues, Epidermis helps in absorption,
secretion, excretion, transpiration and gaseous exchange
also. It protects the
entry of pathogens.
Q.14 How does the
cork act as a protective tissue?
Answer
Cork act as a protective layer because its cells are dead,
filled with tannins, resin and air.
Q.15 Complete the
table –
Answer
These answers have been
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