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Name the fluid connective tissue in our body. . The salivary receptacujar duct opens behind the tongue. occurs when a stimulus, irrelevant by itself, is made relevant by pairing it with something meaningful, . (D. Kannada 2006) Answer: Answer: What technical term Is given to bone cells? Nephridia. Supra oesophageal ganglion:- are a pair of ganglia found in the head & form the brain. Answer: List the mouthparts of Cockroach. Septal nephridia, present on both sides of intersegmental septa of segment 15 to the last open into intestine. Answer: Found in the inner lining of bronchioles. Answer: (i) Give the common name of Periplanata americana (ii) How many types of nephridia are found in earthworm based on their location? What is the main role of setae in an earthworm? Homberg, U. Christensen, T.A. Cartilage is not part of blood. Integumentary nephridia: attached to lining of the body wall of segment 3 to the last that open on the body surface. : Salivary glands secrete saliva into buccal cavity. Name the larva of a frog. Setae:-Their principal role is locomotion. The head holds a bit of a nervous system while the rest is situated along the ventral (belly-side) part of its body. The supra-oesophageal ganglion supplies the nerves to antennae and compound eyes. The inner surface of the labrum bears taste buds concerned with tasting of the food material. Blood is a fluid connective tissue. Question 12. Answer: Ten pairs. Two. Answer: g – (vi). Anal styles are unsegmented hair like out-growths arising from the end of the abdomen in male cockroach. Draw a labelled diagram of alimentary canal of a cockroach. Question 3. The maxillae help in holding and pushing the food into the mouth during swallowing. Question 2. Where are they attached to the body? They carry urine from kidneys to cloaca. (Belgaum 2004) The glands which have ducts to pour their secretions into the respective site of action are called exocrine glands, e.g. Endocrine system - Endocrine system - Class Insecta: Neurosecretory, neurohemal, and endocrine structures are all found in the insect endocrine system. Crop is thin-walled sac, present in the whole of the thorax and serves as a reservoir for food storage. 06, 07, 08, Koppala, Tumkur. Malpighian tubules are the main excretory organs of the cockroach. Mouth parts: On the ventral side of the head mouth is present. No calcium and phosphorous salts are present in the matrix. Question 2. What are Malpighian tubules? At the junction of gizzard and midgut 6 – 8 short fingerlike hollow tubes arise called hepatic caecae. Answer: (a) Ureters in frog The thoracic ganglia give out nerves to the muscles of legs and wings and abdominal ganglia give out nerves to abdominal muscles, heart, spiracles & reproductive organs. Answer: Answer: Question 13. Answer: The head of cockroach holds a bit of a nervous system while the rest is situated along the ventral part of its body. 3 types of nephridia. They act as depot of calcium and phosphorous. It represents the tongue of the cockroach. Answer: Answer: (ii) Mandibles: The mandibles are a pair of small triangular, stout unjointed sclerotized structures present on either side of the mouth. When an insect has just completed a task, learning is abolished if a new task is, Hard to say. It consists of ileum, colon, rectum. Areolar connective tissue serves as a support framework for epithelium. What type of mouth parts are seen in cock-roach? (a) Chondriocytes Their nuclei are located at the base. Respiration by skin is known as cutaneous respiration. Describe the nervous system of an earth-worm. The Alimentary System 2. Resulting in reactions like this one. If a, . (b) Cardiac muscle and striated muscle This is commonly found in ducts of glands and tubular parts of nephrons in kidneys and its main functions are secretion and absorption. (g) Genitalia – (vii) Bone Inputs to the AL appear to be mainly or exclusively from chemoreceptors, is an additional free and single (unpaired) median (median = in the midline) ganglion that is, . They collect the nitrogenous wastes from the haemolymph and send them into the intestine. These fibrous proteins provide strength, elasticity and flexibility to the tissue. Answer: There are two types of epithelial tissues. Question 12. Frog and earthworm show that. The sensory cells, central nervous system component, and … Name their secretion. Sympathetic or Stomatogastric Visceral Nervous System: It consists of a frontal ganglion, which is situated on the dorasl side of the oesophagus in the head. The insect nervous system consists primarily of a brain, located dorsally in the head, and a nerve cord that runs ventrally through the thorax and abdomen. Insect physiology includes the physiology and biochemistry of insect organ systems.. (b) Septal nephridium and pharyngeal nephrldium Insect - Insect - Circulatory system: The circulatory system is an open one, with most of the body fluid, or hemolymph, occupying cavities of the body and its appendages. (c) Septal nephrldla – (iii) Skin Answer: Adipose tissue is a type of loose connective tissue located mainly beneath the skin. Tendon. The junction between midgut and hindgut. Fat bodies and nephrocytes are subsidiary organs of excretion. (This, , which resides in the protocerebrum and is both, This consists of two nerve centres - the main, or dorsal lobe. Cells of cartilage, (b) Axons What is an exoskeleton? Also learn about:- 1. (c) Dense regular and dense irregular connective tissues Question 2. Smooth muscles are called involuntary muscles because their functioning cannot be controlled by our will. Pharyngeal nephridia, present as three paired tufts in the 4th, 5th and 6th segments.Both are same structurally and functionally. The midgut/mesenteron is a short narrow tube lined by glandular epithelium. Question 5. The oeophagus is narrow and connects the buccal cavity to the crop. The terminal abdominal segment has anal styles and anal cerci. I and II only. The larva of cockroach is called Nymph. Match the terms in column I with those in column II: (a) Compound eplthellum – (i) Alimentary canal suh-oesophageal ganglion. What are endocrine glands? Common salivary receptacular duct opens at its base. Answer: Question 11. They are found in the walls of blood vessels and air sacs of lungs and are involved in functions like forming a diffusion boundary. What are the following and where do you find them In animal body. The prementum bears a pair of outer paraglossae and a pair of inner glossae. Question 53. Hindgut- It is also known as proctodaeum. Answer: In females, the ureters and oviduct open separately in the cloaca. Answer: Killing: The cockroach is usually killed with chloroform. Answer: Answer: (i) What is the function of nephridia? Most of this food is ingested in the form of macromolecules and other complex substances (such as proteins, polysaccharides, fats, nucleic acids, etc.) Cockroach feeds on all kinds of substances like leather, paper, cloth etc., hence called omnivorous. You can Download Chapter 7 Structural Organisation in Animals Questions and Answers, 1st PUC Biology Question Bank with Answers, Karnataka State Board Solutions help you to revise complete Syllabus and score more marks in your examinations. Mention four sites in adult human body, where cartilage is present. Mark the odd one in each series: (a) Areolar tissue; blood; neuron; tendon Question 1. It contains mast cells, macrophages and fibroblasts. So, if the head of cockroach is cut off it will still live for long as one week. Question 6. Excretion is performed by un malphigian tubules in cockroaches. Write two characteristic points about the structure of each of them. (ii) Cuboidal: Composed of a single layer of cube-like cells. Question 25. The first sting targets the first thoracic ganglion, part of the central nervous system. Name one specialised connective tissue. Insect activity is timed with the daily light/dark cycle - the, ('ciracdian' means 'about a day', the exact time being set each day according to environmental cues such, or time-givers) such as the number of hours of light and dark. Question 4. 2009) How are they distributed in cockroach. They are the excretory organs of a cockroach. I and III only. Functional diagram of the synthetic nervous system used for one leg. Peristomium is from where the true segment of the earthworm body starts. Mandibulate/ Chewing type. Answer: and J.G. The outer border of stipes bears long five jointed maxillary palp which is five jointed structure. Foregut- It is also known as stomadaeum and is divided into buccal chamber, pharynx, oesophagus, crop, and gizzard. Answer: What is meant by cutaneous respiration? (a) Simple epithelium: Composed of a single layer of cells and functions as a lining for body cavities, ducts and tubes. Nephridia is the excretory organ of the earth worm or pheretima. Connective tissue. Answer: between adjacent vertebrae in the vertebral column. Blood cells are phagocytic in nature. The muscle layers help in locomotion. Prostomium is the front most part of the earthworm. Blood. how to draw respiratory system of cockroach. Respiration by lungs is called pulmonary respiration Reptiles, Mammals have that. Imagine this: You are just coming home from a long day of school, and the minute you step in the door, you set your backpack down on the ground. Question 14. The nervous system of cockroach is spread throughout the body. In this article we will discuss about the dissection of cockroach. With the help of a neat labelled diagram Explain the nervous system of cockroach. (B’lore North 2004) (b) RBC; WBC; platelets; cartilage Answer: Question 14. Neurosecretory cells-Neurons have electrical activity but involved in the production and release of neurosecretion that produces their effect as chemicals. Earthworms lack specialised breathing devices. Answer: Mention the function of the following. Home Decorating Style 2020 for Nervous System Of Cockroach Pdf, you can see Nervous System Of Cockroach Pdf and more pictures for Home Interior Designing 2020 89957 at Manuals Library. (i) Draw a labelled diagram of areolar connective tissue. Bone marrow. A pair of ovaries extend between 4th and 6th segments. Unmyelinated nerve fibres are commonly found in spinal and cranial nerves Which of the above statements are true? Due to closed circulatory system, blood is confined to the heart and blood vessels. Central Nervous System of Cockroach: The central nervous system consists of the supra-oesophageal ganglion or brain, sub- oesophageal ganglion and the nerve cord. Hildebrand, 1989. Actin and Myosin filaments. Differentiate between loose connective tissue and dense connective tissue. They produce blood cells and haemoglobin which is dissolved in blood plasma. Some insects, such as ants and cockroaches, are capable of learning the route, ). The Stomatogastric Nervous System (STNS) is a commonly studied neural network composed of several ganglia in arthropods that controls the motion of the gut and foregut. 1st PUC Biology Structural Organisation in Animals Three Marks Questions, Question 1. In males, it also conducts the sperms. (c) Ciliated epithelium Answer: Answer: Sub oesophageal ganglia:- are a pair of ganglia the oesophagus. Collagen and elastin fibres. (c) The body wall of earthworm Answer: Question 4. Cilia help trap and clear dust foreign particles. : Tendon, It is a solid, rigid and strong connective tissue, It is a solid, semi-rigid and flexible connective tissue, Occur in clusters of 2 or  3 in each lacuna, Matrix is deposited with salts of calcium and phosphorous. There are 10 pairs of spiracles of which two pairs are located in the thorax and eight pairs in the abdomen. Question 3 (v) Where do you find Malpighian tubules? Each leg consists of five joints. Name the type of connective tissue that serves as a support framework for epithelium. (i) What is the function of nephridia? The nervous system of cockroach consists of the central and periphernal systems, The central nervous system is made of ganglia and nerve, cords, whereas the peripheral nervous system is made of nerves arising from the ganglia. What are the cellular components of blood? There are nine segmental ganglia, of which three pairs are thoracic, six pairs in the abdomen i. e 1st five lie in the first five abdominal segments, the last is large & found farther behind. Blatta Orentalis. The mouth parts of cockroach are chewing and biting type. Their function is to move particle or mucus in a specific direction over the epithelium. The system is poor­ly developed and consists of following organs: … (d) Adipose and blood tissue 2 large ovaries are found lying laterally in the 2nd to 6th abdominal segment. The epithelium of proximal convoluted tubule of nephron in the kidney has microvilli. Answer: (iv) How many segments are present in the abdomen of cockroach? Answer: Insects enter a dormant or semi-dormant state, occurs in insects. Question 8. Fibres and fibroblasts are compactly packed in the dense connective tissues. Answer: The main function of blood is to transport gases, nutrients and waste products in the body. 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