NCERT Exemplar Solution Class 9 Science Chapter 6
NCERT Exemplar Solution Class 9 Science Chapter 6 Tissues all Questions Answer Solution. NCERT Exemplar Class 9 Science Chapter 6 Solution PDF.
NCERT Exemplar Solution Class 9 Science Chapter 6: Overview
NCERT Exemplar Solution Class 9 Science Chapter 6 |
|
Board |
NCERT |
Topic |
Exemplar Problem Solution |
Class |
9 |
Subject |
Science |
Chapter |
6 |
Chapter Name |
Tissues |
NCERT Exemplar Solution Class 9 Science Chapter 6 Tissues
Multiple Choice Questions
1) Which of the following tissues has dead cells?
a) Parenchyma
b) Sclerenchyma
c) Collenchyma
d) Epithelial tissue
Answer:- b) Sclerenchyma
Explanation: Sclerenchyma is made up of dead cells.
The cell wall of Sclerenchyma is very thick and made up of lignin. These is mainly for the protection of the part of plants.
Other tissues are made up of living cells.
2) Find out incorrect sentence
a) Parenchymatous tissues have intercellular spaces
b) Collenchyamatous tissues are irregularly thickened at corners
c) Apical and intercalary meristems are permanent tissues
d) Meristematic tissues, in its early stage, lack vacuoles
Answer:- c) Apical and intercalary meristems are permeant tissues.
Explanation: Apical and intercalary meristem are not permanent tissues these are formed in the plant for the growth of girth and length of the plant for some extent of the time.
3) Girth of stem increases due to
a) Apical meristem
b) Lateral meristem
c) Intercalary meristem
d) Vertical meristem
Answer:-b) lateral meristem
Explanation: Lateral meristem perform the function of growth of girth of stem. Lateral meristem are responsible for the thickness of the plant. Vertical and apical meristem for the upward shoot growth of plant. the intercalary meristem for the internodes of the plant.
4) Which cell does not have perforated cell wall ?
a) Tracheids
b) Companion cells
c) Sieve tubes
d) Vessels
Answer:- b) companion cells
Explanation: Tracheids, sieve tubes and the vessels all have cell wall but companion cells does not contain cell wall as companion cells perform the function of in and out of the sugar and amino acids.
5) Intestine absorb the digested food materials. What type of epithelial cells are responsible for that?
a) Stratified squamous epithelium
b) Columnar epithelium
c) Spindle fibres
d) Cuboidal epithelium
Answer:-b) Columnar epithelium
Explanation: Columnar epithelium cells are present in the intestines, lining of stomach, colon and small intestine. thus these are responsible for the absorption of digested food.
6) A person met with an accident in which two long bones of hand were dislocated. Which among the following may be the possible reason?
a) Tendon break
b) Break of skeletal muscle
c) Ligament break
d) Areolar tissue break
Answer:-c) ligament break
Explanation: Out bones are connected or jointed by the ligaments thus the bones dislocation has the main reason of ligament break. Other reasons are not suitable for dislocation of two long bones .
7) While doing work and running, you move your organs like hands, legs, etc. which among the following is correct?
a) Smooth muscles contract and pull the ligament to move the bones
b) Smooth muscles contract and pull the tendons to move the bones.
c) Skeletal muscles contract and pull the ligament to move the bones
d) Skeletal muscles contract and pull the tendon to move the bones.
Answer:- d) skeletal muscles contract and pull the tendon to move the bones.
Explanation: To move the organs like hands and legs skeletal muscles are used by body. The Skeletal muscles contract and pull the tendon to move the bones. And skeletal muscles do not contract and pull the ligament because it can cause strain to bones.
8) Which muscles act involuntarily?
I)Striated muscles
II) Smooth muscles
III)Cardiac muscles
IV) Skeletal muscles
a) I and II
b) II and III
c) III and IV
d) I and IV
Answer:- b) II and III
Explanation: Smooth muscles and Cardiac muscles are involuntary muscles. These muscles have to work without taking any break. They does not work according to our will. These muscles are located in the heart.
9) Meristematic tissues in plants are
a) Localised and permanent
b) Not limited to certain regions
c) Localised and dividing cells
d) Growing in volume
Answer:- c) Localised and dividing cells
Explanation: Meristematic tissues are dividing cells. These cells are localized and divide to grow. These mainly perform the function of growth of parts. It contains apical meristem, lateral meristem, intercalary meristem etc.
10) Which is not a function of epidermis?
a) Protection from adverse condition
b) Gaseous exchange
c) Conduction of water
d) Transpiration
Answer:-c)conduction of water
Explanation: Epidermis cells protect the plant from adverse condition, gaseous exchange and transpiration. But it does not perform the function of conduction of water. Conduction of water is done by the xylem tissues.
11) Select the incorrect sentence
a) Blood has matrix containing proteins, salts and Hormones
b) Two bones are connected with ligament
c) Tendons are non-fibrous tissue and fragile
d) Cartilage is a form of connective tissue.
Answer:- c) tendons are non- fibrous tissue and fragile
Explanation: All the other sentences are correct except the Tendons are non- Fibrous and fragile tissue. Tendons are fibrous and these are strong and highly elastic.
12) Cartilage is not found in
a) Nose
b) Ear
c) Kidney
d) Larynx
Answer:- c) kidney
Explanation: Kidney is formed by smooth muscles and some parts of kidney like renal tubules and corpuscles are formed by cuboidal epithelium tissue.
But it is not made up of cartilage.
Cartilage work as an connective tissue it is found in ear, nose and Larynx.
13) Fats are stored in human body as
a) Cuboidal epithelium
b) Adipose tissue
c) Bones
d) Cartilage
Answer:- b) Adipose tissue
Explanation: Adipose tissue are present below the layer of skin between the internal organs. These adipose tissue stores fat globules.
14) Bone Matrix is rich in
a) Fluoride and Calcium
b) Calcium and phosphorus
c) Calcium and potassium
d) Phosphorus and potassium
Answer:- b) Calcium and phosphorus
Explanation: Bones are made up of Calcium and phosphorus. These made the bones strong enough.
15) Contractile proteins are found in
a) Bones
b) Blood
c) Muscles
d) Cartilage
Answer:- c) Muscles
Explanation: Muscles are mainly formed by protein. Contractile Proteinshelps the muscles to contract and relax.
16) Voluntary muscles are found in
a) Alimentary canal
b) Limbs
c) Iris of the eye
d) Bronchi of lungs
Answer:- b) Limbs
Explanation: Voluntary muscle are under the control, these work according to our will. Among the above options Alimentary canal, iris of the eye, and Bronchi of lungs these does not act under the control. These are Involuntary muscles. Limbs are Voluntary muscles.
17) Nervous tissue is not found in
a) Brain
b) Spinal cord
c) Tendons
d) Nerves
Answer:- c) Tendons
Explanation: Tendons are the connective tissues which connects the bones to the muscles.
Nervous tissues are useful in nervous system. These are responsible for conduction of massages from skin to brain and from brain to parts of skin.
18) Nerve cells does not contain
a) Axon
b) Nerve endings
c) Tendons
d) Dendrites
Answer:- c) tendons
Explanation: Axon, Nerve endings and dendrites are parts of nerve cells or neurone.
But tendons are connective tissue which connects the bones with muscles.
19) Which of the following helps in repair of tissue and fills up the space inside
a) Tendon
b) Adipose tissue
c) Areolar
d) Cartilage
Answer:- c) Areolar
Explanation: Areolar tissue fills the spaces between organs, and these helps in the repairing of the tissues.
Cartilage is connective tissue which supports the parts of body such as nose, larynx and ear .
Adipose tissue stores fat.
Tendons are connective tissue which connects the bones and muscles.
20) The muscular tissue which function through out the life continuously without fatigue is
a) Skeletal muscle
b) Cardiac muscle
c) Smooth muscle
d) Voluntary muscle
Answer:- b) cardiac muscle
Explanation: Cardiac muscle are present in the heart. Heart should work continuously without any break or rest. These muscles are involuntary muscles. These are not under our control. Cardiac muscles are smooth muscles which does not fatigue.
21) Which of the following cells us found in the cartilaginous tissue of the body?
a) Mast cells
b) Basophils
c) Osteocytes
d) Chondrocytes
Answer:- d) chondrocytes
Explanation: Chondrocytes are found in the Cartilaginous tissues. Other options like Mast cells are present in Areolar tissue, Osteocytes are present in bone.And basophils are present in blood.
22) The dead element present in the phloem is
a) Companion cells
b) Phloem fibres
c) Phloem parenchyma
d) Sieve tubes
Answer:- b) phloem fibres
Explanation: All the other parts in the phloem are living while phloem fibres are only cells which are dead in the phloem tissue.
23) Which of the following does not lose their nucleus at maturity?
a) Companion cells
b) Red blood cells
c) Vessel
d) Sieve tube cells
Answer:- a) companion cells
Explanation: Companion cells present in phloem tissue these tissues loses their nucleus at maturity.Other cells does not loss the nucleus at maturity.
24) In desert plants, rate of water loss gets reduced due to the presence of
a) Cuticle
b) Stomata
c) Lignin
d) Suberin
Answer:- a) Cuticle
Explanation: Desert contains more heat . As the environment of the desert is more warm. Thus the plants in these area have adapted the condition that the minimizes the water loss from the plant. Cuticles are present over the covering of epidermis of the leaf. It is a waxy structure which protects the excess water loss.
25) A long tree has several branches. The tissue that helps in the side ways conduction of water in the branches is
a) Collenchyma
b) Xylem parenchyma
c) Parenchyma
d) Xylem vessels
Answer:- d) Xylem vessels
Explanation: Xylem vessels are the main functional area for the Conduction of the water throughout the plant. Collenchyma and parenchyma does not conduct the water they have another role.
26) If the tip of sugarcane plant is removed from the filed, even then it keeps on growing in length, it is due to the presence of
a) Cambium
b) Apical parenchyma
c) Lateral meristem
d) Intercalary meristem
Answer:- d) intercalary meristem
Explanation: Intercalary meristem is responsible for the growth of internodes. Sugarcane have internodes thus is the tip is removed then also it keeps growing.
27) A nail is inserted in the trunk of a tree at a height of 1 metre from the ground level. After 3 years the nail will
a) Move downwards
b) Move upwards
c) Remain at the same position
d) Move sideways
Answer:- c) Remain at the same position
Explanation: Nail will be remain at the same height because the plant keeps growing from the apical part i.e. from the shoot.
28) Parenchyma cells are
a) Reactively unspecified and thin walled
b) Thick walled and specialised
c) Lignified
d) None of these
Answer:- a) Reactively unspecified and thin walled
Explanation: Parenchyma have thin cell wall. These are simple permanent tissue. The cells of parenchyma are loosely arranged and unspecified.
29) Flexibility in plants is due to
a) Collenchyma
b) Sclerenchyma
c) Parenchyma
d) Chlorenchyma
Answer:- a) Collenchyma
Explanation: Collenchyma is the responsible for the flexibility of the plants. Collenchyma also gives mechanical support to stems and tendrils. These helps in maintaining flexibility so that it will not break and can bend easily.
30) Cork cells are made impervious to water and gases by the presence of
a) Cellulose
b) Lipids
c) Suberin
d) Lignin
Answer:- c) suberin
Explanation: Cork cells are formed after the secondary meristematic tissues in the older stems. Cork cells are formed by suberin which is a chemical substance.
31) Survival of plants in terrestrial environment has been made possible by the presence of
a) Intercalary meristem
b) Conducting tissue
c) Apical meristem
d) Parenchymatous tissue
Answer:- b) Conducting tissue
Explanation: Intercalary meristem and apical meristem are responsible for the growth of parts of plants. Conducting tissue are xylem and phloem which conducts the water , minerals and food. These are responsible for the survival of plants.
32) Choose the wrong statement
a) The nature of matrix differs according to the function of the tissue
b) Fats are stored below the skin and in between the internal organs.
c) Epithelial tissue have intercellular spaces between them
d) Cells of striated muscles are multinucleated and unbranched
Answer:- c) Epithelial tissue have intercellular spaces between them
Explanation: These statement is wrong among the above options. Epithelial tissues have intercellular spaces between the cells.
33) The water conducting tissue generally present in gymnosperm is
a) Vessels
b) Sieve tube
c) Tracheids
d) Xylem fibres
Answer:- c) Tracheids
Explanation: Tracheid is the part of xylem tissue. Xylem perform the function of conduction of water and minerals from soil to the other body parts.
Short Answer Questions
34) Animals of colder regions and fishes of cold water have thicker layer of subcutaneous fat. Describe why?
Answer:-The animals Living in colder regions and the fishes living in cold water have adapted the thicker layer of subcutaneous fat under their skin, these is for the prevention of animals and fishes from the cold. These layer of fat behave as an insulator. These subcutaneous fat help them to maintain the temperature in the body.
35) Match the Column A) with the Column B)
(A) |
(B) |
a) Fluid connective tissue |
i) Subcutaneous layer |
b) Filings of space inside the organs |
ii) cartilage |
c) Striated muscles |
iii) skeletal muscles |
d) Adipose tissues |
iv) Areolar tissue |
e) Surface of joints |
v) blood |
f) Stratified squamous epithelium |
vi) skin |
Answer:-
Fluid connective Tissue → v) blood
Filings of space Inside The organs → iv) Areolar Tissue
Striated muscles → iii) skeletal Muscles
Adipose tissue →i) subcutaneous Layer
Surface of joints→ii) Cartilage
Stratified Squamous Epithelium → vi) skin
36) Match the Column A) with the Column B)
A) |
B) |
a) Parenchyma |
i) Thin walled, packing cells |
b) Photosynthesis |
ii) carbon fixation |
c) Arenchyma |
iii) localized thickenings |
d) Collenchyma |
iv) buoyancy |
e) Permanent tissue |
v) sclerenchyma |
Answer:-
a) Parenchyma→ i) thin walled, Packing cells
b) Photosynthesis → ii) carbon fixation\
c) Arenchyma → iv) buoyancy
d) Collenchyma → iii) localized Thickening
e) Permeant tissue → v) sclerenchyma
37) If a potted plant is covered with a glass jar, water vapours appear on the wall of glass jar. Explain why?
Answer:- the process of Transpiration is occurs over there. Transpiration carried out in the leaves of the plant. The water droplets escape from tip of the leaves. Which keeps plant cool.
38) Name the different components of xylem and draw a living component?
Answer:- Xylem contains xylem parenchyma, xylem fibres and Tracheid’s vessels .The Living components of the xylem is xylem parenchyma.
39) Draw and identify different elements of phloem.
Answer:- Phloem consists of phloem fibres, Phloem parenchyma, sieve tubes and companion cells. These are shown in the following diagram.
Phloem tissues
40) Write True (T) or false (F)
a) Epithelial tissue is protective tissue in Animal body.
Answer:- True (T)
b) The lining of blood vessels, lung alveoli and kidney tubules are all made up of epithelial tissue.
Answer:- True (T)
c) Epithelial cells have a lot of intercellular spaces.
Answer:- False (F)
d) Epithelial cells do not have lots of intercellular spaces.
Epithelial layer is permeable layer.
Answer:- True (T)
e) Epithelial layer does not allow regulation of materials between body and external environment.
Answer:- False (F)
Epithelial layers allow regulation of materials between body and external environment.
41) Differentiate between voluntary and involuntary muscles. Give one example of each type.
Answer:-
Voluntary muscle |
Involuntary muscles |
1 – voluntary muscle contains multinucleated cells | A ) Involuntary muscles are uni- nucleated cells. |
2–voluntary muscles are long and cylindrical in structure | B ) Involuntary muscles are small and spindle shaped in structure. |
3 – these muscles tired after work and these needs rest | C ) Involuntary muscles do bot tired and work continuously without taking rest. |
4 – voluntary muscles are also called as striated muscles because they shows striations. | D )involuntary muscles are called as Non- striated muscles because they show striations. |
5 – example of voluntary muscles is limbmuscles. | E ) the example of Involuntary muscles is Cardiacmuscles. |
6. Voluntary muscles are under our will Or under control | F) Involuntary muscles are not under our control. |
41) Differentiate the following activities on the basis of voluntary (V) or involuntary ( I V ) muscles.
a) Jumping of frog
Answer:- Voluntary muscles
b) Pumping if the heart
Answer:- Involuntary muscles
c) Writing with hand
Answer:- Voluntary muscles
d) Movement of chocolate in your intestine.
Answer:- Involuntary muscles
41) Fill in the blanks.
a) Lining of blood vessels is made up of _____________.
Answer:- lining of blood vessels is made up of squamous epithelium
b) Lining of small intestine is made up of ____________.
Answer:- lining of small intestine is made up of columnar epithelium
c) lining of kidney tubules is made up of _____________.
Answer:- lining of kidney tubules is made up of Cuboidal epithelium
d) Epithelial cells with cilia are found in ____________ of our body.
Answer:- Epithelial cells with cilia are found in respiratory tract of our body.
43) Water hyacinth float on water surface. Explain.
Answer:- Water hyacinth contains parenchyma tissue in it. In the swollen petiole of water hyacinth the gaps or spaces are filled with air. Thus it becomes lighter than the water and floats easily over water surface.
44) Which structure protects the plant body against the invasion of parasites ?
Answer:- The structure which protects the plant body against the invasion of parasites is epidermis. These epidermis have thick cuticle and also some waxy substances which catch up the parasites and prevent the plant from attack of it.
45) Fill in the blanks
a) Cork cells possesses _________ on their walls that makes it impervious to gases and water.
Answer:- Cork cells possesses suberin on their walls that makes it impervious to gases and water.
b) __________ have tubular cells with performed walls and are living in nature.
Answer:- sieve tube have tubular cells with performed walls and are living in nature.
c) Bone possesses a hard matrix composed of ___________ and ____________.
Answer:- Bone possesses a hard matrix composed of Calcium and phosphorus
46) Why is epidermis important for the plants?
Answer:-
The epidermis layer is important for plant because it protects the plant body from various Parasites attacks. It prevents the excessive water loss from the plant body. The cell of epidermis produces some waxy substances which is responsible for preventing water loss, attack of parasites, and some mechanical injury etc. The stress over the parts of plants is also reduced by the continuous layer of epidermis.
47) Fill in the blanks
a) ________ are forms of complex tissue.
Answer:- Xylem and phloem are forms of complex tissue.
b) __________Have guard cells.
Answer:- stomata have guard cells.
c) Cells of cork contains a chemical called _______.
Answer:- cells of cork contains a chemical called suberin
d) Husk of coconut is made of ___________ tissue.
Answer:- Husk of coconut is made ofSclerenchyma tissue.
e) _________ gives flexibility in plants.
Answer:- Collenchyma gives flexibility in plants.
f) ________ and _______ are both conducting tissues.
Answer:- Xylem and Phloem are both conducting tissues.
g) Xylem transports _______ and _______ form soil.
Answer:- Xylem transports water and minerals forms soil.
h) Phloem transport _______ from _________ to other parts of the plant.
Answer:- phloem transport food from leaf to other parts of the plant.
Long Answer Questions
48) Differentiate between sclerenchyma and parenchyma tissues. Draw well labelled diagram.
Answer:-
Sclerenchyma tissue | Parenchyma tissue |
Sclerenchyma tissue contains cell wall made up of lignin. | Parenchyma tissue contains cell wall made up of cellulose |
The cell wall is thick | The cell wall is thin. |
These functions as an mechanical tissue. | These functions as an packing tissue |
Sclerenchyma tissues contains dead cells. | Parenchyma tissue contains living cells. |
These tissue gives strength and rigidity to plant. | These functions as an storage of food |
These are responsible for protecting from parasites and fungi. | These are responsible for the function of photosynthesis. |
T.s of parenchyma tissue
L.S of parenchyma tissue
T.S of sclerenchyma tissue
L.s of sclerenchyma tissue
49) Describe the structure and function of different types of epithelial tissues. Draw diagram of each type of epithelial tissue.
Answer:-
The cells of epithelial tissues are the protective coverings of the organs and body. The cells of epithelial tissues playas and important role in the separating the body systems. These are tightly packed and form continuous layer.
There are four types of epithelial tissues
1) Simple squamous epithelium tissues
2) Stratified squamous epithelium tissues
3) Columnar epithelium tissues
4) Cuboidal epithelium tissues
- Simple squamous epithelium tissues:-
Simple squamous epithelium cells are selectively permeable cells, these are thin, flat and delicate lining. The simple squamous epithelium tissues are found in some parts of our body which are –cells of blood vessels, alveoli of lungs, oesophagus, lining of mouth, skin of the bodyetc. These are responsible for the prevention of the skin from tearing.
Simple squamous epithelium tissues
- Stratified squamous epithelium tissues:-
Skin of the body is made up of squamous epithelium, when they are arranged in the layers then these are known are stratified squamous epithelium cells. These are also responsible for the prevention of the skin from tearing.
Stratified squamous epithelium
- Columnar epithelium tissues :-
The columnar epithelial cells are present in inner lining of intestine. In the intestines these columnar epithelium tissues perform the function of absorption and secretion.
Columnar epithelium tissues are also present in the respiratory tract where it performs the function the movement mucus to clear the tract with the help of cilia.
Columnar epithelium tissues
- Cuboidal epithelium tissues :-
Cuboidal epithelium cells are present in the duct of salivary glands and linings of kidney tubules. These perform the function of providing the mechanical support.
50) Draw well labelled diagrams of various types of Muscles found in human body.
Answer:-
a) Striated muscles
b) Smooth muscles
c) Cardiac muscles
51) Give reasons for
a) Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole.
Answer:- Vacuoles have function of storage of food. But meristematic tissues grow vigorously and have prominent nucleus thus they don’t need to store food. Hence meristematic tissues don’t posses vacuoles.
b) Intercellular spaces are absent in sclerenchymatous tissues.
Answer:- Intercellular spaces are absent in sclerenchymatous tissues because, the cell wall of these tissue are lignified and tightly packed.These are mainly perform for the function of giving mechanical support to the plant. Therefore they don’t contains intercellular spaces.
c) We get a crunchy and granular feeling. When we chew pear fruit.
Answer:-
The sclerenchyma cells which are also known as stone cells are present in the pear fruit. These stone cells are small and hard thus we get crunchy and granular feeling when we chew pear fruit.
d) Branches of a tree move and bend freely in high wind velocity.
Answer:-
Branches of a tree move and bend freely because, it contains collenchyma tissues on the joining of the branches. Which is responsible for providing rigidity and flexibility.
e) It is difficult to pull out the husk of a coconut tree.
Answer:-
The husk of the coconut tree is made up of the sclerenchyma tissue. Which is hard in nature. Thus it is hard to pull out.
52) List the characteristics of cork. How are they formed? Mention their role.
Answer:- The characteristics of the cork are as below –
1) The cells of cork are arranged compactly.
2) Due to these they do not possess intercellular spaces in between.
3) At the maturity the cells of cork are dead.
4) Cells of cork contains a chemical substance which is suberin.
5) Suberin is present in Their walls.
6) These walls have several layers and it becomes thick.
the cork cells are formed as the plant grows in size and becomes older the lining of secondary meristematic tissues is replaced by the epidermis of the plant’s stem. These meristem cut the cells on the outer side and these are known as cork cells.
The function of the cork cells is to protect the stem or branches from any mechanical injury.
53) Why are xylem and phloem called complex tissues? How are they different from one other ?
Answer:-
Xylem tissue and phloem tissue both contains more than one type of cells having common origin and all of them perform the same work. Thus these both the tissues are known as complex tissue. The difference between them is as follows –
Phloem |
Xylem |
Phloem tissues contains companion cells, sieve tubes, phloem parenchyma and phloem fibres |
Xylem tissues contains vessels, tracheid, xylem parenchyma, and xylem fibres. |
Except phloem fibres mostly other cells are living cells. |
Except Xylem parenchyma mostly other cells are dead cells. |
Phloem tissues perform the function of Transporting of food from Leaves to the other parts of plants |
Xylem tissue perform the function of transporting water and minerals from soil to the aerial parts of the plants. |
These works in position from upward to downwards |
These works in position from downwards to upwards |
A) differentiate between meristematic and permanent tissues in plants
Permenent tissues |
Meristematic tissues |
The cells of these tissue are large .
And contains different types of shapes. Which are differentiated. |
The cells of these tissue are small, having shape spherical or polygonal which are undifferentiated |
The cells can be dead or Living both. | These cells are living |
It contains large Central Vacuoles. | Vacuoles are almost absent |
These tissues contains intercellular spaces | Thesetissues doesn’t contain intercellular spaces |
Tissues have cell wall, These can be thick or thin. | These tissues contain thin and elastic cell wall. |
The cells of these tissue does not divide in normal conditions | These cells divide regularly and grow as well. |
Well developed cell organelles in the cell | Simple cell organelles |
These tissues can be simple or complex or specialized. | These tissues are simple. |
Perform the function of support, protection, storage
Photosynthesis etc. |
Perform the function of Growth of the plants. |
B) Define the process of differentiation
Answer:-
Differentiation is the process in which cells in the meristematic tissue loose their ability to divide. Due to loosing the property of dividing of cells they cannot takes up an permanent shape or and cannot perform function.
C) Name any two simple two complex permanent tissues in plants.
Answer:-
The two simple permanent tissues in the plants are collenchyma and sclerenchyma also parenchyma.
And the two complex permanenttissues of the plants are Xylem and phloem.