Draw a well labelled diagram of parenchyma and collenchyma. Download all VBQ for Class 9 Science in pdf free. This is called secondary growth. The cells in matrix are called chondriocytes. Login. Sometimes a portion of the epithelial tissue folds inward to form a multicellular gland, which lines the gastric glands, pancreatic tubules and intestinal glands. It produces an increase of length of organ such as leaves and internodes. The parenchyma is present in all the organs of the plants, i.e., roots, stems, leaves, flowers, fruit and seeds. Basal part of cell bears oval nucleus. Name the two major groups of tissues. The cells of the tissue are living, elongated, and have irregularly thickened corners. sclerenchyma tissue. CBSE Class 9 Science Chapter 5 Tissues Exercise Questions with Solutions to help you to revise complete Syllabus and Score More marks. (CCE 2016) Answer: (a) (b) Hope given Previous Year Question Papers for CBSE Class 9 Science Chapter 6 Tissues are helpful to complete your science homework. They were asked to visit a dairy farm and note down their observations. In this tissue cells move in a fluid or liquid matrix or medium called blood plasma. Q.7 (a) Differentiate between simple distillation and fractional distillation. 1 Answer +1 vote . It is found in the brain, spinal cord and nerves. Its matrix consists of two kinds fibers: white collagen fibers and yellow elastic fibers. Q.9 Why water as steam may cause severe burns but water as ice has cooling effect ? A group of similar cells performing a particular function is: a. Cartilage provides support and flexibility to the body parts. Identify, (ii) Name the quantity measured by the slope of the distance – time graph of a, (iii) Write two advantages of graphical representation of variation of velocity with. This document is highly rated by Class 9 students and has been viewed 376 times. (b) Write any two differences between parenchyma and collenchyma tissues. It allows easy bending in various parts of a plant (leaf, stem) without breaking. CBSE Class 9 Science Practical Skills – Plant and Animal Tissues. They appear at the periphery of roots and stems when they grow older and increase in girth. CBSE Ncert Notes for Class 9 Biology Tissues. The living cells of parenchyma assimilate and store food. Aerolar tissue Adipose tissue Bone tissue Cartilage tissue 16. d) Nervous tissue :- Nervous tissue helps to carry messages from one part of the body to the other and responds to stimuli. Tissues become organized to form organs and organs into organ systems. Phloem parenchymas are thin walled, living cell of parenchyma of phloem. The raisins were, soaked in distilled water at room temperature. (i) The distance – time graph of motion of a body is parallel to ‘X’ axis. (3). Tissues Class 9 MCQ/Objective questions NCERT Science Chapter 5. The cells of this tissue are living, elongated MATERIALS REQUIRED Prepared slides of parenchyma, collenchyma and sclerenchyma, compound microscope. Permanent tissues may be simple, permanent tissues like parenchyma, collenchyma and sclerenchyma. Prevent the entry of germs inside our body. CBSE Class 9 Science Chapter 5 Tissues Exercise Questions with Solutions to help you to revise complete Syllabus and Score More marks. Collenchyma cells are usually living, and have only a thick primary cell wall made up of cellulose and pectin. Cells appear square-like in vertical section but their free surface seems to be hexagonal. It is characterized by ordered and densely packed collection of fibers and cells. It is of three types 1) Parenchyma 2) Collenchyma 3) Sclerenchyma. Epithelial cells protect the underlying cells from mechanical and chemical injuries and bacterial or viral infection. Question 2. The nature of matrix decides the function of connective tissue. He identifies the tissue as : (a) transverse section Of collenchyma (c) transverse section Of sclerenchyma (Board Term 1, 2012 Set-020) (b) longitudinal section Of collenchyma (d) longitudinal section Of sclerenchyma Q. Present in the wall of alimentary canal, blood vessels, respiractory tract, urinary bladder etc. All these cells coordinate to perform a common function. The main function of xylem is to carry water and mineral salts upward from the root to different parts of shoots, hence also called water conducting tissue. Phloem fibers. Parenchyma Tissue. (ii) Write down two symptoms of a sick animal. c) The large vacuole is present. Protective tissues include. NCERT Science. It is distributed in almost all the parts of the plant body. 2. Function: Cause contraction and mobility in visceral organs and involuntary muscles. The cells of this tissue are living, elongated and irregularly thickened at the corner. 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