Nervous tissue, combination of both the tissues are responsible for movement in our body. Function: Nervous tissue receives the stimuli and transmit the stimulus rapidly from one place to another within the body. It is present in cartilage as well as in extracellular material. It is elastic, has lot of strength. Thus, the stomata help in the process of transpiration. The main cells of connective tissue proper are fibroblasts, which are cells that secrete intercellular material.
After this, observe the growth of roots in both the jars and measure their lengths each day for five more days and record the observations in tables, like the table From the above observations, answer the following questions: a Which of the two onions has longer roots? Ans: Companion cells are the specialized parenchyma cells associated with the sieve tube elements of phloem. How do I report an adverse reaction for a tissue? Name three types of muscle tissues and give function of each. What is the role of epidermis in plants? Which tissue makes up the husk of coconut? State the difference between simple tissues of plants. Serum containing a specific antibody or antitoxin may be used in the treatment or prevention of certain infections. Striations are present and cells are uninucleate. Answer: There are four main types of tissues present in animal.
Where is apical meristem found? Which structure protects the plant body against the invasion of parasites? Answer: Three types of muscle tissues are: a Striated muscle b Smooth muscle c Cardiac muscle a Striated muscle: These muscles show alternate light and dark bands or striations. Give the functions of bone. The lacunae are connected to one another and to the Haversian canals by a system of interconnecting canals known as canaliculi. In desert plants, epidermis has a thick waxy coating of cutin which acts as a water proofing agent. In roots, epidermis have long hair-like parts that provide greater surface for water absorption. Animal Tissue : Complete Notes, Class 9 Science notes for Class 9 is made by best teachers who have written some of the best books of Class 9. Fibers give strength to the plant body and are generally non-living.
We can see guard cells and stomata pore as shown in Fig. The spindle shaped cells, uninucleated and unbranched are present in muscular tissue of a striated muscles b smooth muscles c cardiac muscle d both a and b 8. Name all different types of tissues present in animal. Answer: The blood is composed of cells and plasma. There are numerous hair-like outgrowths coming out of the cyton.
Question 2: What is the utility of tissues in multi-cellular organisms? Hinge joint allows movements in one plane only, e. Sebum is the waxy secretion secreted by sebaceous glands. It protects all the internal parts of the plant. How are simple tissues different from complex tissues in plants? It forms a constituent of a compound called chondrin sulphate. Where is apical tissue found? Name the following: 1 Tissue that forms the inner lining of our mouth. The increase in their number causes leukaemia, a cancer. Additional resources regarding stem cell research are available from the National Institutes of Health resource for stem cell research.
Answer: a Adipose tissue b Meristematic tissue. Which one of the following contains the largest quantity of extracellular material? The connective tissue that connects muscle to bone is called a ligament b tendon d cartilage d areolar 5. Since lymphocyte does not have granules in their cytoplasm so it is called agranulocyte. A tissue whose cells are capable of dividing and re-dividing is called a complex tissue b connective tissue c protective tissue d meristematic tissue 14. It performs intracellular digestion and destroys foreign substances. Each neuron has a single long part called the axon, and many small, short branched parts called dendrite. These tissues are specialised to carry out a particular function at a definite place in the body.
Answer: Fibres consist of very long, narrow and thick cells. Answer: Feature of cardiac muscles 1 Heart muscles cardiac muscles are cylindrical, branched and uninucleated 2 They are striated muscle fibres. Ans: The dermal tissue of plants and hard cuticle covering protect the plant body from invasion of parasites and other harmful agents. The overall risk of disease transmission through tissue transplantation is believed to be very low. Answer: Meristematic tissue and permanent tissue. Consists of tracheids, vessels, xylem parenchyma and xylem fibres. Haversian canals occur in a Humerus b Pubis c Clavicle d Scapula 8.
What is the function and location of stratified squamous epithelium? Which of the following is not the main function of lymph glands? A drop of each of the following is placed separately on four slides. Living cells are present only at the base of hair i. The layers of cells are arranged to prevent wear and tear. Linings of kidney tubules and ducts of salivary glands are composed of cuboidal epithelium. A paralytic patient was unable to walk. Here we have covered Important Questions on Tissues for Class 9 Science subject.
Question 2: What does a neuron look like? It covers moist surfaces where there is little wear and tear by friction such as inner lining of cheeks. It often occurs in the vicinity of mucus-secreting goblet cells. How is this function related to the main features of its cells? The function of muscle tissue is to pull bones skeletal striated muscle , to contract and move viscera and vessels smooth muscle and to make the heart to beat cardiac striated muscle. It consists of two parts: a fluid matrix, the plasma, in which float amoeboid cells, the white blood corpuscles, or leucocytes. Leucocytes, formed in lymph nodes and red bone marrow, can produce antibodies and move through the walls of vessels to migrate to the sites of injuries, where they surround and isolate dead tissue, foreign bodies and bacteria.