Body of an animal is formed of several kinds of cells.
There are about different types of specialized cells in the human body. The cells of one or more kinds are arranged together in a characteristic manner and cooperate to perform a specific role. Such a group of cells is called a tissue.
Structural Organisation In Animals NCERT Notes Download pdf
The cell of a tissue may secrete between them a nonliving intercellular material. Thus, a tissue may be defined as a group of one or more types of cells having a similar origin and specialized for a specific function or functions along with the intercellular material.
Branch of biology dealing with the study of tissue is called histology. Histological study of an organ called Microscopic Anatomy. Marcello Malpighi is the father of microscopic anatomy. The formation of tissues from germinal layer is called as histogenesis. A group of one or more types of cells having a similar origin and specialized for a specific function or functions is called tissue.
Main Functions. It is also known as pavement epithelium. The nuclei are situated centrally. Three common modifications are goblet, cilia and microvilli. Muscle tissue is a soft tissue which composes muscles in animal bodies. The cells of Muscle tissues are called myocytes. It provides support and surface for attachment of muscle.
Skeletal connective tissues form the frame work of body. It provides rigidity to the body. These protect the various organ and help in locomotion.Download revision notes for Structural Organisation in Animals class 11 Notes Biology and score high in exams. These are the Structural Organisation in Animals class 11 Notes Biology prepared by team of expert teachers. The revision notes help you revise the whole chapter in minutes. Revising notes in exam days is on of the best tips recommended by teachers during exam days.
In multicellular organism a group of similar cells along with intercellular substances perform a specific function. Such organization is called tissue. Epithelial Tissue : This tissue provides covering or lining for some part of the body. Cells are compactly packed without intercellular space. Connective Tissues : They are most abundant and widely distributed tissues which link and support the other tissues.
All connective tissues except blood cells, secrete fibres of structural protein called collagen or elastin to provide elasticity and flexibility.Audi q5 rumore in marcia
The tissues organize to form organs which in turn associate to form organ system in multicellular organisms. Frogs are cold-blooded organism having ability to change colours to hide from enemies. Body is divisible into head and trunk, bulged eyes covered by nictitating membrane. Male frog is different from female having vocal sacs and copulatory pad on first digit of forelimb.
Structural Organisation in Animals class 11 Notes Biology. CBSE quick revision note for class Mathematics, Physics, Chemistry, Biology and other subject are very helpful to revise the whole syllabus during exam days. The revision notes covers all important formulas and concepts given in the chapter. Even if you wish to have an overview of a chapter, quick revision notes are here to do if for you.
These notes will certainly save your time during stressful exam days. Save my name, email, and website in this browser for the next time I comment. Download Now. Secretes enzymes, milk, mucus, saliva etc.
Products are released through ducts. Exocrine gland secretes hormones. Products are directly released at target sites through blood.
NEET Biology MCQ – Structural Organisation in Animals
It contains fibroblast, macrophages and mast cells. It acts as support framework for epithelium. Fibroblast, macrophages and mast cells are absent. The cells are specialized to store fats beneath the skin.
Tendon connects bones to skeletal muscles. It is made up of white fibrous tough tissue. Ligament connects one bone to another bone. It is made up of yellow elastic tissue with collagen fibres. They are soft skeletal tissue.
Chondriocyctes are enclosed in small cavities with matrix.This action cannot be undone. This will permanently delete All Practiced Questions. When secretary granules leave cell by exocytosis with no loss of other cellular material, the glands are called. Large amoeboid cells, that are a part of our innate immune system, found in the areolar tissue are called as:.Excel list of stocks
Botany All. Chemistry All. Physics All. Zoology All. Show All Easy Medium Hard. Are you sure? Which of the following statements is not correct with respect to the epithelial tissue? View Explanation Difficulty Level. To view Explanation, Please buy any of the course from below. Difficulty Level:. When secretary granules leave cell by exocytosis with no loss of other cellular material, the glands are called 1 Holocrine 2 Merocrine 3 Apocrine 4 Autocrine.
Large amoeboid cells, that are a part of our innate immune system, found in the areolar tissue are called as: 1 Macrophages 2 Mast cells 3 Fibroblasts 4 Adipocytes. The cells that release heparin and histamines in the blood are: 1 Basophils 2 Mast cells 3 Eosinophils 4 Neutrophils.
In cockroach, the formation of ootheca is by the secretions of: 1 Prothoracic glands of male 2 Prothoracic glands of female 3 Colleterial glands of male 4 Colleterial glands of female.Roku dev mode
Please attempt this question first. Bipolar neurons are found in humans in: 1 Brain 2 Spinal cord 3 Embryonic stages 4 Olfactory epithelium. The type of caartilage present in the epiglottis, pinna and tip of the nose is: 1 Elastic 2 Hyaline 3 Fibrous 4 Calcified. Fat body 2. Urecose glands 3. Nephrocytes 4. None of these. Android App Google Play.This tissue has a free surface, which faces either a body fluid or the outside environment and thus provides a covering or a lining for some part of the body.Ufcw publix
There are two types of epithelial tissues namely simple epithelium and compound epithelium. Simple epithelium —. In all connective tissues except blood, the cells secrete fibres of structural proteins called collagen or elastin which provide strength, elasticity and flexibility to the tissue. These cells also secrete modified polysaccharides, which accumulate between cells and fibres and act as matrix ground substance. Connective tissues are classified into three types: i Loose connective tissue, ii Dense connective tissue and iii Specialised connective tissue.
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You are commenting using your Facebook account. Notify me of new comments via email. Notify me of new posts via email. Skip to content. Animal tissues are broadly classified into four types: i Epithelial, ii Connective, iii Muscular and iv Neural. The cells are compactly packed with little intercellular matrix. Simple epithelium — Connective Tissue Connective tissues are most abundant and widely distributed in the body of complex animals.
Muscle Tissue Each muscle is made of many long, cylindrical fibres arranged in parallel arrays. These fibres are composed of numerous fine fibrils, called myofibrils.
Muscle fibres contract shorten in response to stimulation, then relax lengthen and return to their uncontracted state in a coordinated fashion.An epithelium is a tissue composed of one or more layers of cells that cover the body surface and lines its various cavities. It originates from all the three primary germ layers.
Epidermis arises from ectoderm, Coelomic epithelium from the mesoderm and epithelial lining of alimentary canal from the endoderm. Multicellular exocrine glands are classified by structure, using the shape of their ducts and the complexity branching of their ducts system as distinguishing characteristics.
Simple exocrine glands e. Compound exocrine glands have two or more ducts e. Structural classification of exocrine glands:.Animal tissue - Short trick for NEET. Epithelial tissues classification and locations. BIOLOGY 11.
Intestinal glands, crypts of Lieberkuhn in ileum. Gastric stomach gland, and Uterine gland. Mucous gland in skin of frog, Poison gland of toad and seminal vesicle.
Sublingual and submandibular parotid salivary gland. Parotid salivary glands, Mammary gland and Pancreas. Study of tissue outside the body in a glass tube is known as in vitro, while study of living tissues in situ is known as in vivo.
Transitional epithelium also called plastic epithelium or urothelium. It lacks basement membrane. A malignant tumour arising from an epithelium is called a carcinoma. If it arises from a squamous epithelium it is a squamous cell carcinoma and if it arises from glandular epithelium it is called an adenoma. Stereocilia are elongated membrane outgrowths found in certain parts of male reproductive tract.
Muscle cells lose capacity to divide, multiply and regenerate to a great extent.
Study of muscle is called myology. The muscle cells are always elongated, slender and spindle-shaped, fibre-like cells, These are, therefore called muscle fibres. These possess large numbers of myofibrils formed of actin and myosin. Striated or Striped or Skeletal or Voluntary muscle fibres.
Cardiac muscle fibres.Structural Organisation in Animals. Here you are provided topic wise MCQs under Structural Organisation in Animals which will help you to familiarize with the question pattern during the preparation itself.
We have included many questions appeared in different entrance exams. Zoological name of cockroach is : 1 Glossina palpalis 2 Periplaneta americana 3 Musca nebulo 4 Apis indica Show Answer.
Diagonistic feature of insects is : 1 Segmented body 2 Chitin in body wall 3 Three pair of legs 4 One pair compound eyes Show Answer. Which are the two common indian cockroaches?
Characteristic of group insecta is : 1 Joined appendages 2 3 pair of jointed legs 3 Chitinous exoskeleton 4 Compound eyes Show Answer. Scientist who gave the name Periplaneta is 1 Linneous 2 K. Bahel 3 Bermister 4 D. Gir Show Answer.
The plate situated between the eyes and passing below that on the head of cockroach is called : 1 Vertex 2 Frons 3 Epicranium 4 Gena Show Answer. The dorsal plate of skeleton found on the abdomen of cockroach is called : 1 Pleuron 2 Sternum 3 Tergum 4 Vertex Show Answer.
Outer border of tergum bends downwards in cockroach and attaches with: 1 Muscles 2 Sternum 3 Pleura 4 Fat body cells Show Answer. Mandibles of cockroach are : 1 Short with grinding teeth 2 Long and pointed 3 short without teeth 4 long and coiled Show Answer. Although all the questions of Structural Organisation in Animals are verified by experts, in case if you detect any error in this page then please inform us, we will update it immediately.
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Structural Organization in Plants and Animals
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They also Like to dig into various leading newspapers, important books, magazines etc.Tissue : A group of similar cells along with intercellular substances which perform a specific function. Simple epithelium : is composed of a single layer of cells resting on a basement membrane.
Compound epithelium : consists of two or more cell layers and has protective function. Areolar tissue : is a type of loose connective tissue present beneath the skin. Adipose tissue : is a type of loose connective tissue which has cells specialised to store fats. Neuroglia : A delicate connective tissue which supports and binds together the nerve tissue in the Central Nervous Tissue. Malpighian tubules : Yellow coloured thin, filamentous tubules present at the junction of midgut and hindgut in cockroach; helps in excretion.
Uricotelic : Animals which excrete nitrogenous waste in the form of uric acid. Tight junctions : Plasma membranes of adjacent cells are fused at intervals. They help to stop substances from leaking across a tissue. Adhering junctions : Perform cementing function to keep neighbouring cells together. Gap junction : Facilitate the cells to communicate with each other by connecting the cytoplasm of adjoining cells for rapid transfer of ions, small molecules and sometimes big molecules.
Loose Connective Tissue has cells and fibres loosely arranged in semi-fluid ground substance. Dense Connective Tissue Fibres and fibroblasts are compactly packed. Specialised Connective Tissue. They protect and support neurons. Body covered by a chitinous, hard exoskeleton of hard plates called sclerites. Head : Triangular, formed by fusion of 6 segments.
Structural Organisation in Animals class 11 Notes Biology
Bears a pair of anten- nae, compound eyes. Mouth parts consists of labrum upper lipa pair of mandibles, a pair of maxillae, labium lower liphypopharynx acts as tongue. Thorax : 3 segments; prothorax, mesothorax and metathorax. Bears 2 pairs of wings : Forewings : tegmina mesothoracic. Hindwings : transparent, membranous metathoracic and 3 pairs of legs in thoracic segments.
Abdomen : 10 segments. Bears a pair of long, segmented anal cerci in both sexes and a pair of short, unjoined anal styles in males only. Also has anus and genital aperture at the hind end. Genital aperture sur- rounded by external genitalia called gonapophysis or phallomere. Anatomy : Study of the morphology of internal organs.
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