NCERT Exemplar Class 9 Science Chapter 6: Tissues. NCERT Exemplar Solutions for Class 9 Science Chapter 6 Tissues prepare students for their Class 9 exams thoroughly.
Science problems and solutions for the Class 9 pdf are provided here which are similar to the questions being asked in the previous year’s board.
NCERT Exemplar Class 9 Science Chapter 6: Tissues
Class 9: Science Chapter 6 solutions. Complete Class 9 Science Chapter 6 Notes.
Multiple Choice Questions
- Which of the following tissues has dead cells?
- (a) Parenchyma
- (b) Sclerenchyma
- (c) Collenchyma
- (d) Epithelial tissue
- Find out incorrect sentence
- (a) Parenchymatous tissues have intercellular spaces
- (b) Collenchymatous tissues are irregularly thickened at corners
- (c) Apical and intercalary meristems are permanent tissues
- (d) Meristematic tissues, in its early stage, lack vacuoles
- Girth of stem increases due to
- (a) apical meristem
- (b) lateral meristem
- (c) intercalary meristem
- (d) vertical meristem
- Which cell does not have perforated cell wall?
- (a) Tracheids
- (b) Companion cells
- (c) Sieve tubes
- (d) Vessels
- 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
- 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
- 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
- Which muscles act involuntarily?
(i) Striated muscles
(ii) Smooth muscles
(iii) Cardiac muscles
(iv) Skeletal muslces- (a) (i) and (ii)
- (b) (ii) and (iii)
- (c) (iii) and (iv)
- (d) (i) and (iv)
- Meristematic tissues in plants are
- (a) localised and permanent
- (b) not limited to certain regions
- (c) localised and dividing cells
- (d) growing in volume
- Which is not a function of epidermis?
- (a) Protection from adverse condition
- (b) Gaseous exchange
- (c) Conduction of water
- (d) Transpiration
- 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
- Cartilage is not found in
- (a) nose
- (b) ear
- (c) kidney
- (d) larynx
- Fats are stored in human body as
- (a) cuboidal epithelium
- (b) adipose tissue
- (c) bones
- (d) cartilage
- Bone matrix is rich in
- (a) fluoride and calcium
- (b) calcium and phosphorus
- (c) calcium and potassium
- (d) phosphorus and potassium
- Contractile proteins are found in
- (a) bones
- (b) blood
- (c) muscles
- (d) cartilage
- Voluntary muscles are found in
- (a) alimentary canal
- (b) limbs
- (c) iris of the eye
- (d) bronchi of lungs
- Nervous tissue is not found in
- (a) brain
- (b) spinal cord
- (c) tendons
- (d) nerves
- Nerve cell does not contain
- (a) axon
- (b) nerve endings
- (c) tendons
- (d) dendrites
- Which of the following helps in repair of tissue and fills up the space inside the organ?
- (a) Tendon
- (b) Adipose tissue
- (c) Areolar
- (d) Cartilage
- The muscular tissue which function throughout the life continuously without fatigue is
- (a) skeletal muscle
- (b) cardiac muscle
- (c) smooth muscle
- (d) voluntary muscle
- Which of the following cells is found in the cartilaginous tissue of the body?
- (a) Mast cells
- (b) Basophils
- (c) Osteocytes
- (d) Chondrocytes
- The dead element present in the phloem is
- (a) companion cells
- (b) phloem fibres
- (c) phloem parenchyma
- (d) sieve tubes
- Which of the following does not lose their nucleus at maturity?
- (a) Companion cells
- (b) Red blood cells
- (c) Vessel
- (d) Sieve tube cells
- In desert plants, rate of water loss gets reduced due to the presence of
- (a) cuticle
- (b) stomata
- (c) lignin
- (d) suberin
- 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
- If the tip of sugarcane plant is removed from the field, even then it keeps on growing in length. It is due to the presence of
- (a) cambium
- (b) apical meristem
- (c) lateral meristem
- (d) intercalary meristem
- 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
- Parenchyma cells are
- (a) relatively unspecified and thin walled
- (b) thick walled and specialised
- (c) lignified
- (d) none of these
- Flexibility in plants is due to
- (a) collenchyma
- (b) sclerenchyma
- (c) parenchyma
- (d) chlorenchyma
- Cork cells are made impervious to water and gases by the presence of
- (a) cellulose
- (b) lipids
- (c) suberin
- (d) lignin
- 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
- 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 tissues have intercellular spaces between them
- (d) Cells of striated muscles are multinucleate and unbranched
- The water conducting tissue generally present in gymnosperm is
- (a) vessels
- (b) sieve tube
- (c) tracheids
- (d) xylem fibres
Short Answer Type Questions
- Animals of colder regions and fishes of cold water have thicker layer of subcutaneous fat. Describe why?
- Match the column (A) with the column (B)
- Match the column (A) with the column (B)
- If a potted plant is covered with a glass jar, water vapours appear on the wall of glass jar. Explain why?
- Name the different components of xylem and draw a living component?
- Draw and identify different elements of phloem.
- Write true (T) or false (F)
- (a) Epithelial tissue is protective tissue in animal body.
- (b) The lining of blood vessels, lung alveoli and kidney tubules are all made up of epithelial tissue.
- (c) Epithelial cells have a lot of intercellular spaces.
- (d) Epithelial layer is permeable layer.
- (e) Epithelial layer does not allow regulation of materials between body and external environment.
- Differentiate between voluntary and involuntary muscles. Give one example of each type.
- Differentiate the following activities on the basis of voluntary (V) or involuntary (I V) muscles.
- (a) Jumping of frog
- (b) Pumping of the heart
- (c) Writing with hand
- (d) Movement of chocolate in your intestine
- Fill in the blanks
- (a) Lining of blood vessels is made up of ________ .
- (b) Lining of small intestine is made up of ________ .
- (c) Lining of kidney tubules is made up of ________ .
- (d) Epithelial cells with cilia are found in ________ of our body.
- Water hyacinth float on water surface. Explain.
- Which structure protects the plant body against the invasion of parasites?
- Fill in the blanks
- (a) Cork cells possesses ________ on their walls that makes it impervious to gases and water.
- (b) ________ have tubular cells with perforated walls and are living in nature.
- (c) Bone possesses a hard matrix composed of ________ and ________ .
- Why is epidermis important for the plants?
- Fill in the blanks
- (a) ________ are forms of complex tissue.
- (b) ________ have guard cells.
- (c) Cells of cork contain a chemical called ________ .
- (d) Husk of coconut is made of ________ tissue.
- (e) ________ gives flexibility in plants.
- (f) ________ and ________ are both conducting tissues.
- (g) Xylem transports ________ and ________ from soil.
- (h) Phloem transport ________ from ________ to other parts of the plant.
Long Answer Type Questions
- Differentiate between sclerenchyma and parenchyma tissues. Draw well labelled diagram.
- Describe the structure and function of different types of epithelial tissues. Draw diagram of each type of epithelial tissue.
- Draw well labelled diagrams of various types of muscles found in human body.
- Give reasons for
- (a) Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole.
- (b) Intercellular spaces are absent in sclerenchymatous tissues.
- (c) We get a crunchy and granular feeling, when we chew pear fruit.
- (d) Branches of a tree move and bend freely in high wind velocity.
- (e) It is difficult to pull out the husk of a coconut tree.
- List the characteristics of cork. How are they formed? Mention their role.
- Why are xylem and phloem called complex tissues? How are they different from one other?
- (a) Differentiate between meristematic and permanent tissues in plants
(b) Define the process of differentiation
(c) Name any two simple and two complex permanent tissues in plants.
Answers
