Read and download free pdf of CBSE Class 9 Science Tissues Plants Worksheet. Students and teachers of Class 9 Science can get free printable Worksheets for Class 9 Science in PDF format prepared as per the latest syllabus and examination pattern in your schools. Standard 9 students should practice questions and answers given here for Science in Grade 9 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 9 Science Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems provided here with solutions on daily basis to get more score in school exams and tests
Tissues Plants Class 9 Science Worksheet Pdf
Class 9 Science students should refer to the following printable worksheet in Pdf for Tissues Plants in standard 9. This test paper with questions and answers for Grade 9 Science will be very useful for exams and help you to score good marks
Class 9 Science Worksheet for Tissues Plants
CBSE Class 9 Science Worksheet - Tissues Plants. Students can download these worksheets and practice them. This will help them to get better marks in examinations. Also refer to other worksheets for the same chapter and other subjects too. Use them for better understanding of the subjects.
Exam Questions NCERT Class 9 Science Chapter 6 Tissue
Question: What are protective tissues?
Answer : All parts of plants, e.g. leaves, flowers, stem, and root are covered by a single outermost protective layer called epidermis. It consists of rectangular, closely fitted relatively flat cells which lack intercellular spaces. Usually it is one cell thick and is covered with cutin. Epidermis protects internal tissues of the plant. In old dicot plants, epidermis is replaced by secondary meristem which cuts cells toward outerside. Cork cells do not have intercellular spaces and are dead cells. The walls of cork cells are heavily thickened due to the position of suberin. Presence of suberin makes the cells impervious to gases and water and thus prevents evaporation of water.
Question: Where can we find apical meristem?
Answer : It is found in the growing tips of roots and stem. The length of roots and stem is increased due to the presence of apical meristem.
Question: What is the structure of a neuron?
Answer : Building block of a nervous tissue is a neuron. It has a thread-like structure with axon and cell body.
Question: Explain the structure of a fluid connective tissue.
Answer : Blood is a fluid connective tissue. Blood consists of :
1. Blood plasma,
2. Blood cells.
1. Blood plasma : It is the fluid matrix which contains 85 to 95% water, 7% different types of proteins, 0.9% of salts, about 0.1% glucose and a very small amount of hormones, wastes, etc. In the plasma, blood corpuscles (cells) are suspended.
2. Blood cells : Three kinds of blood cells are found suspended in the blood plasma. These are :
(i) Red blood corpuscles (Erythrocytes) or RBCs (ii) White blood corpuscles (leucocytes) or WBCs and
(iii) Blood platelets. (i) Red blood corpuscles (Erythrocytes) or RBCs : The red blood corpuscles are biconcave, disc-like cells which are devoid of nucleus. They contain a substance called haemoglobin because of this they appear red in colour. The most important function of the RBCs is the transport of oxygen and carbon dioxide. (ii) White blood corpuscles (Leucocytes) or WBCs : These cells are comparatively large in size, colourless and irregular in appearance. They are devoid of haemoglobin. They protect our body from diseases by destroying germs. (iii) Blood platelets : These are small, 2-4 m in diameter. They are without nucleus. Their main function is to liberate some substances which helps in blood clotting.
Question: What will happen if apical meristem is damaged?
Answer : Growth of plant in length will stop.
Question: Mention the functions of bone.
Answer : (i) Provides support to skeletal (ii) Provides shape to body (iii) Protects the internal organs (iv) Support muscles
Question: How is ligament different from tendons?
Answer : Ligaments are elastic connective tissue which attach bone to bone to keep them in their place. Tendons are less elastic connective tissues which attach muscles to a bone.
Question. _____ tissues make the coconut husk.
Answer : Sclerenchymatous tissue
Question: Define guard cells.
Answer : Guard cells are kidney-shaped epidermal cells and a pair of these cells bound each stomata.
ONE MARK QUESTIONS
Question: Where is apical meristem found in plants?
Question:Name the tissue present in soft parts of the plants like pith and cortex.
Question: What are complex tissues?
Question: Which plant tissue is associated with conduction of food in plants?
Question: Name the chemical substance that makes the cork cells impervious to gases and water.
TWO MARKS QUESTIONS
Question: List the characteristic features of meristematic tissue.
Question: Differentiate between sclerenchyma and parenchyma tissues.
Question: Water hyacinth floats on water surface. Explain.
Question: Why is epidermis important for the plants?
Question: List the constituents of xylem and phloem.
THREE MARKS QUESTIONS
Question: Explain three types of meristematic tissues.
Question: Ennumerate three differences between simple and complex tissues.
Question: Give the functions of the stomata.
Question: Draw the diagram of the section of the tissue responsible for translocation of food in plants. Name the element of phloem which comprises of non living cells.
Question: Define the term differentiation. List two functions of collenchyma cells.
FIVE MARKS QUESTIONS
Question: Justify the statements giving suitable reasons: a) Meristamatic cells have prominent nucleus, dense cytoplasm but lack vacuole. b) Absence of intercellular spaces in sclerenchyma tissues. c) While chewing pear fruit we get a crunchy and granular feeling. d) Branches of a tree move and bend freely in high wind velocity. e) It is difficult to pull the husk of a coconut tree.
Question: List the characteristics of cork. How are they formed? Mention their role.
Question: Draw the labeled diagrams of: a) Location of meristematic tissue in plant body b) Transverse section of parenchyma, collenchyma and sclerenchyma tissues. c) Draw a neat diagram of leaf epidermal peel showing stomata .Label any two parts.
ENRICHMENT WORK SHEET –I
Question: Growth in plant is restricted to certain regions. Give reason for this fact. Mention two growth regions in plants.
Question: Differentiate between: a. Chlorenchyma and Arenchyma b. Xylem and phloem
Question: What is the main function of vascular tissues in plants.
Question: What would happen if the phloem at the base of a branch is removed and the xylem of root of a plant is blocked?
Question: Which structure protects the plant body against the invasion of parasites?
Question: What type of tissue is most abundant in animals?
Question: Name the long and unbranched extension of a neuron.
Question: Identify the type of tissue in the bone and lining of kidney tubule.
Question: Which mineral is most abundantly found in bones?
Question: Which type of epithelium is present in the organs where exchange of substances takes place? Give one function of adipose tissue.
TWO MARKS QUESTIONS
Question: Name the tissue which helps in transportation of oxygen that we inhale to various parts of our body. Write the composition of this tissue.
Question: State two functions of areolar tissue. Why are skeletal muscles known as striated muscles?
Question: How do the cardiac muscles resemble both striated and smooth muscle fibres?
Question: Differentiate between: a) Bone and Cartilage b) Tendon and Ligament
Question: What are neurons? What function do they perform in the body of an organism?
THREE MARKS QUESTIONS
Question: Which type of the muscles are found in the iris of the eye, smooth or striated? Why are smooth muscles called involuntary muscles? In what way they are different from striated muscles with respect to number of nuclei?
Question: Explain the structure, location with the function of, Columnar and Cuboidal epithelial tissue.
Question: Differentiate between striated, unstriated and cardiac muscles on the basis of their structure and site /location in the body.
FIVE MARKS QUESTIONS
Question: Draw diagrams of different types of epithelial tissues.
Question: Draw well labeled diagrams of various types of muscles found in human body.
Question: What is a nervous tissue? Give its functions. Explain the structure of a neuron with a diagram.
Question: Anurag was injured while playing cricket. His friends took him to the hospital and doctor told that he is suffering from a sprain and advised bed rest. Deepak and Rahul visited him every day to enquire about his health and helped his mother.
a) What happens during a sprain?
b) How bed rest can get relieve from pain and sprain?
c) What value is shown by Deepak and Rahul?
Question: Name the following:
a) Tissue which protects the entire body
b) A connective tissue with solid matrix
c) Tissue which stores fat:
d) Thin hair like projections present at the free ends of cuboidal epithelium:
e)Tissue forming inner lining of blood vessels:
Question: Write one function each of :
a) Squamous epithelium:
b) Fluid connective tissue:
Question: Describe blood as a connective tissue.
Question: State the function of ciliated columnar epithelium in respiratory tract.
What are the various types of animal tissues? Mention briefly the location and one function of each class of tissues.
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