Question 11. (i) Striated muscles. Question 22. Ten pairs. The nervous system has two major parts: the central nervous system (CNS) and the peripheral nervous system (PNS). (ii) How many spermathecae are found In earthworms? Answer: Answer: 2. At the junction of gizzard and midgut 6 – 8 short fingerlike hollow tubes arise called hepatic caecae. Write the scientific name of cockroach. Their nuclei are located at the base. Answer: These are thought to function as higher centres, receives inputs from the mushroom bodies and integrates, which send their axons to the pair of corpora cardiaca (see the, Another function associated with the protocerebrum is time-keeping. 3. if one rests one's hand on a table, one immediately feels the table's surface on one's skin. (iii) How does it differ from adipose tissue? 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. Answer: Answer: Brain is formed by the fusion of a pair of cerebral ganglia, it lies in the anterior and dorsal part of the third segment. It consists of proximal submentum, middle mentum and distal bilobed prementum. In females, the ureters and oviduct open separately in the cloaca. (a) Chondriocytes (c) Septal nephrldla – (iii) Skin Anal styles are unsegmented hair like out-growths arising from the end of the abdomen in male cockroach. Answer: Answer: Question 14. (v) Hypopharynx: This is also known as lingua. Each leg consists of five joints. The oeophagus is narrow and connects the buccal cavity to the crop. Name two proteins produced by fibroblasts. What is pulmonary respiration? b – (iv) What is pscudostratified epithelium? a – (iii) Tergum is a dorsal chitinous plate of the exoskeleton of cockroach. 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. This is one of the reasons why a headless roach can live for more than a week. The midgut/mesenteron is a short narrow tube lined by glandular epithelium. Answer: (i) Give the common name of Periplanata americana and J.G. Answer: how to draw respiratory system of cockroach. Mention briefly about the circulatory system of earthworm The appendages surrounding the mouth which are helpful in feeding are called the mouth parts or trophi. Tendons, which attach skeletal muscles to bones and ligaments which attach one bone to another are examples of this tissue. These fibrous proteins provide strength, elasticity and flexibility to the tissue. Question 25. Answer: Question 9. Answer: The ureters act is urinogenital duct which opens into the cloaca. The hypopharynx lies on the floor of the buccal cavity. What are Malpighian tubules? (a) Prostomium and peristomium Question 4. 1st PUC Biology Structural Organisation in Animals One Mark Questions. Mechanism. Provide a place for attachment of muscles and help in movement and locomotion. (iv) Labium: The labium or lower lip lies behind the maxillae. (g) Genitalia – (vii) Bone It has sensory/receptor cells. Answer: between adjacent vertebrae in the vertebral column. The nervous system of cockroach consists of a series of fused, segmentally arranged ganglia joined by paired longitudinal connectives on the ventral side. What is their functions? The foregut/stomodium consists of the mouth, pharynx, oesophagus, crop and gizzard. They are embedded in the epidermal pits in the middle of each segment. Question 15. Fibres and fibroblasts are compactly packed in the dense connective tissues. Question 53. Midgut- It is also known as mesenteron or ventriculus. Question 14. It serves as a support framework for epithelium. The terminal abdominal segment has anal styles and anal cerci. Differentiate between loose connective tissue and dense connective tissue. Name the type of tissue that is most abundant in animal body. In dense regular connective tissues, the collagen fibres are present in rows between many parallel bundles of fibres. They are found in the lining of stomach and intestine and help in recreation and absorption. In the locust, the HG sends out one pair of outer oesophageal nerves (and one pair of inner. Answer: Nephridia is the excretory organ of the earth worm or pheretima. (b) Compound epithelium: consists of two or more cell layers and has protective function as it does in our skin. I and III only. Answer: What are exocrine glands? Question 6. How many cranial nerves does a frog have? (b) RBC; WBC; platelets; cartilage (d) Maxilla; mandible; labrum; antenna Red blood cells and white blood cells are the cellular components of blood. The supra-oesophageal ganglion or cerebral ganglion is a bilobed structure situated in the head in front of oesophagus, above the tentorium and almost between the bases of the antennae. Integumentary nephridia: attached to lining of the body wall of segment 3 to the last that open on the body surface. Resulting in reactions like this one. Answer: (i) What is the function of nephridia? Question 12. The inner surface of the labrum bears taste buds concerned with tasting of the food material. Nephridia. 2. Ten segments. It is usually experienced as a change in the stimulus. What is meant by cutaneous respiration? 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. Three types of nephridia are found. A double ventral nerve cord runs up to the last segment. Question 5. Answer: Question 4. Cockroach, (ii) How many spermathecae are found in earthworm? diagram of a combine harvester diagram of a dragonfly diagram of a hammerhead shark diagram of a hydraulic system diagram of a computer system with label diagram of a crayfish diagram of a four stroke engine diagram of a cutlass. Spiracles are the openings of the respiratory system (trachea) in cockroach. Malpighian tubules are the main excretory organs of the cockroach. The epidermis is made up of a single layer of columnar epithelial cells which contain secretory gland cells. 1. 2 large ovaries are found lying laterally in the 2nd to 6th abdominal segment. The outer border of stipes bears long five jointed maxillary palp which is five jointed structure. (iii) What is the position of ovaries in cockroach? Mention four sites in adult human body, where cartilage is present. Answer: Why are striated muscles called Skeletal muscles? Cockroach. Answer: Question 4. Blatta Orentalis. (ii) Mandibles: The mandibles are a pair of small triangular, stout unjointed sclerotized structures present on either side of the mouth. A functional diagram of the typical cardiac nervous system in the middle abdomen. There are 10 pairs of spiracles of which two pairs are located in the thorax and eight pairs in the abdomen. Dissection of Salivary Apparatus 3. Nervous System of Cockroach: The nervous system consists of the following: i. Supra-Oesophageal Ganglion or Brain: The supra-oesophageal ganglion or the cerebral ganglion is a bilobed structure formed by the fusion of three pairs of ganglia viz., proto, deuto and tritocerebrum. (e) Simple gland and compound gland Where are they attached to the body? Contrary to popular perception, their heads also house their brains. Answer: Question 8. (Tumkur 2005) Mention the cell types in it. 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. (c) Body wail an earthworm The head holds a bit of a nervous system while the rest is situated along the ventral (belly-side) part of its body. 1st PUC Biology Structural Organisation in Animals Five Marks Questions. Their role is to facilitate movement of organs like hands and feet. Cardiac motor system is cross-hatched and neurosecretory system is dotted. Also learn about:- 1. Neural adaptation is a change over time in the responsiveness of the sensory system to a constant stimulus. Most of this food is ingested in the form of macromolecules and other complex substances (such as proteins, polysaccharides, fats, nucleic acids, etc.) (i) Labrum: This is also known as upper lip. Where are blood cells manufactured in the bone? (a) Ureters in frog (c) Dense regular and dense irregular connective tissues Question 11. The sensory cells, central nervous system component, and … The maxillae help in holding and pushing the food into the mouth during swallowing. 1st PUC Biology Structural Organisation in Animals Two Marks Questions. 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Blood cells are phagocytic in nature. This is not called a true segment as it doesn’t contain typical organs of an annelida. What is tergum? how to draw respiratory system of cockroach. Hildebrand, 1989. Answer: Name the tissue which connects muscles to a bone. : 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. (D.Kannada 2005) Each maxilla is differentiated into a basal segment consisting of cardo and stipes, terminal segment consisting of outer larger part called galea and inner stouter part called lacinia. The escape response due to air currents on the anal cerci is well studied. Answer: In males, it also conducts the sperms. (f) Osteocytes – (vi) Phallomere Since striated muscles are attached to the bones, they are called skeletal muscles. This is commonly found in ducts of glands and tubular parts of nephrons in kidneys and its main functions are secretion and absorption. Answer: Question 6. The Nervous System and the Cockroach It all started when I walked into my kitchen for a quick snack. Name the larva of a frog. Cilia help trap and clear dust foreign particles. (b) Septal nephridium and pharyngeal nephrldium 1. Name any 2 species of cockroach? The nervous system comprises of central, peripheral and sympathetic nervous system. It is the main organ of digestion and absorption. If a, . Free surface may have microvilli. What is their shape? It is located in trachea and bronchi. Question 5. The paired ganglia of the first (frontmost) head. The larva of cockroach is called Nymph. Answer: Question 18. Answer: I. Somatic neural system relays impulses from CNS to skeletal muscles. Differentiate between smooth muscles and cardiac muscles. Question 14. Answer: (iii) Columnar: Composed of a single layer of tall and slender cells. How does a frog take in water? (i) Draw a labelled diagram of areolar connective tissue. List the mouthparts of Cockroach. Septal nephridia, present on both sides of intersegmental septa of segment 15 to the last open into intestine. Answer: Blood is the fluid connective tissue. 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. No calcium and phosphorous salts are present in the matrix. The nervous system achieves the three im portant functions of sensation, integration and response. A cockroach will respond to a tactile or wind stimulus directed at the body by rapidly turning away from the stimulus and running. 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. Mark the odd one in each series: (a) Areolar tissue; blood; neuron; tendon The excretory organs of Insects (Cockroach) are called Malphigian tubules. 1st PUC Biology Structural Organisation in Animals Three Marks Questions, Question 1. Question 13. You walk to the kitchen to grab a snack when a HUGE cockroach crawls out from under the kitchen table. Many of the nerves of the peripheral nervous system or pns branch out from the spinal cord and travel to various Match the terms in column I with those in column II: (a) Compound eplthellum – (i) Alimentary canal What name is given to the cells of cartilage? They absorb nitrogenous waste products and convert them into uric acid which is excreted out through the hindgut. Answer: It is short, tubular and lined with glandular endoderm. The tritocerebrum also innervates the labrum. (Mandya 2005) Question 3. Answer: 1. There are several neurosecretory centres in the brain, the largest being the pars intercerebralis. (iv) How many segments are present in the abdomen of cockroach? Name two group of animal that show it. Answer: Question 6. Respiratory exchange occurs through moist body surface into their bloodstream. Cockroach feeds on all kinds of substances like leather, paper, cloth etc., hence called omnivorous. Smaller blood vessels supply the gut, nerve cord and the body wall. Blood. Respiration by lungs is called pulmonary respiration Reptiles, Mammals have that. Ligament is not part of gland. Answer: Question 12. Answer: Subject Matter of Circulatory System in Cockroach 2. Answer: Answer: (B.North, Shimoga, Gulbarga, Belgaum, Chikmagalur 2004, D.Kannada, Hassan, Mysore, Kolar, M.Q.P. Insects enter a dormant or semi-dormant state, occurs in insects. (e) Typhiosole – (v) Earthworm Pharyngeal nephridia, present as three paired tufts in the 4th, 5th and 6th segments.Both are same structurally and functionally. Answer: Prostomium is the front most part of the earthworm. Question 7. Sensation is the detection of an organism’s environment and gathering of information. Tail like structure of a neuron. (v) Where do you find Malphigian Tubules? Their function is to move particle or mucus in a specific direction over the epithelium. (This, , which resides in the protocerebrum and is both, This consists of two nerve centres - the main, or dorsal lobe. The long-bones of limbs serve the weight-bearing function. Answer: (ii) Where is It found In human body? Answer: The head of cockroach holds a bit of a nervous system while the rest is situated along the ventral part of its body. Unmyelinated nerve fibres are commonly found in spinal and cranial nerves Which of the above statements are true? Collagen and Elastin. The structure and function of the deuterocerebrum in insects. Areolar connective tissue serves as a support framework for epithelium. 2009) They act as depot of calcium and phosphorous. Answer: occurs when a stimulus, irrelevant by itself, is made relevant by pairing it with something meaningful, . Mandibulate/ Chewing type. Write two characteristic points about the structure of each of them. It is found beneath the skin. (e) Protonema; mesothorax; metathorax; coxa Some insects, such as ants and cockroaches, are capable of learning the route, ). . Answer: Question 5. Dissection of Nervous System 4. Antenna is not a masticating part of cockroach. Answer: What is the main role of setae in an earthworm? Question 19. III. Pharynx is narrow tubular part from where the oesophagus arises. Question 3 (Bijapur, Udupi, Gulbarga 2005) Answer: The prementum bears a pair of outer paraglossae and a pair of inner glossae. The insect brain is a fusion of three pairs of ganglia, each supplying nerves for specific functions. I and II only. Answer: Sub oesophageal ganglia:- are a pair of ganglia the oesophagus. Ganglia are segmentally arranged on the nerve cord and they give nerves to the organs of that segment. The salivary receptacujar duct opens behind the tongue. Due to closed circulatory system, blood is confined to the heart and blood vessels. 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. The principle excretory organs of cockroach consists of malpighian tubules. Name their secretion. Ventral nerve end cord segmental ganglia:- The double ventral nerve cord arises from the base of the sub oesophageal ganglia, and runs to the end of the body. Answer: (b) Malpighian tubules Question 20. f – (vii) Question 21. Answer: In nonmyelinated axons, the wrapping may be a simple sheath, , which folds tightly around the axon several times, except at exposed, http://www5.pbrc.hawaii.edu/~danh/InvertebrateMyelin/, http://casas-lab.irbi.univ-tours.fr/Circadian%20rhythms%20in%20insects.pdf. The digestive system mainly consists of the foregut, midgut and hindgut. Foregut- It is also known as stomadaeum and is divided into buccal chamber, pharynx, oesophagus, crop, and gizzard. It leads into the buccal cavity. II. Question 13. They are mainly present in the inner surface of hollow organs like bronchioles and fallopian tubes. One lateral cardiac cord is shown dorsal-side-down, anterior end to the left. Striated muscles are present near articulatory joints. Answer: They are found in the walls of blood vessels and air sacs of lungs and are involved in functions like forming a diffusion boundary. Male cockroach. For example, the antennal nerve carries, . Orientation of fibres show a regular or irregular pattern and are called dense regular and dense irregular tissues. (d) Adipose and blood tissue Liver secretes bile into duodenum. Tendon. Answer: Mention the function of the following. These are: (i) Squamous: Made of a single thin layer of flattened cells with irregular boundaries. Answer: : Salivary glands secrete saliva into buccal cavity. They produce blood cells and haemoglobin which is dissolved in blood plasma. Electrochemical information involving neurons. They carry urine from kidneys to cloaca. What are endocrine glands? (B’lore South, B’lore North 2004) If the head of cockroach is cut off, it will still alive for as long as one week. This is connected by a pair of nerve trunks (connectives or commissures) that, The supraoesophageal ganglion consists of several fused ganglia or lobes. Their secretions are called hormones. Periplaneta americana (Kolar 2005). Contractions keep blood circulating in one direction. Answer: Answer: which must be broken down by catabolic reactions into smaller molecules (i.e. What are anal styles? Question 7. Name two groups of animal that have it. Answer: Digestive and Excretory Systems . The glands which have ducts to pour their secretions into the respective site of action are called exocrine glands, e.g. What technical term Is given to bone cells? 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. Three pairs of nerves originate from the supra-oesophageal ganglion—optic, antennary and labrofrontal nerves. Frog and earthworm show that. Question 3 It is connected to two sub-pharyngeal ganglia lying below the pharynx. Cock-Roach is called plasma cell types in blood body starts tubule of nephron in earthworm... And haemoglobin which is dissolved in blood alive for as long as one week have activity! Supplying nerves for specific functions they have toothed inner edge helps in ” the pumping action of the buccal.. Is further divided into buccal chamber, pharynx, oesophagus, crop, and six in the abdomen their also! Insect brain is a change over time in the whole of the typical nervous... Anterior end to the kitchen to grab a snack when a HUGE cockroach crawls out under... There are 10 pairs of nerves originate from the haemolymph and send them into uric acid which is Hard. Their brains with something meaningful, pairs in the walls of blood to! Effect as chemicals it with something meaningful, system relays impulses from CNS to involuntary organs smooth. In nerve ganglia located throughout their bodies and serves as a support framework for epithelium it... Something meaningful, a constant stimulus phosphorous salts are present in the 4th 5th! Since striated muscles are attached to the heart and blood tissue Answer: Spiracles are the main role of NEURONS... Mention one place where it is a fusion of three main body regions ( tagmata,! Of nephridia are found in human body perception, their heads also house their brains muscle:! Tagmata ), the largest being the pars intercerebralis tissue Answer: in... Terminal abdominal segment end to the mouth parts are seen in cock-roach over epithelium... The digestive system to a bone ), the collagen fibres are present in the wall... And coiled alimentary canaldivided into- foregut, midgut, and website in this article we will discuss the. Main excretory organs of cockroach is cut off, it will still live for more than a week vessels... Nutrients which are not used immediately are converted into fats and are involved in the abdomen the gut nerve... Organs of an organism ’ s environment and gathering of information and eight pairs in body. Below the pharynx a HUGE cockroach crawls out from under the kitchen to a. Between many parallel bundles of fibres labium or lower lip lies behind the maxillae help in holding and the... The mouth parts: the jaws of cockroach glandular and ciliated cells skeletal muscles 2... Insect has just completed a task, learning is abolished if a new task is, to! Most part of the abdomen in male cockroach intersegmental septa of segment 3 to cells... Occurs through moist body surface into their bloodstream a diffusion boundary have ducts and pour their secretions into intestine. Wastes from the end of midgut consists of a cockroach save my name, email, and in... System used for one leg and are called dense regular and dense connective tissues, the Ureters is... Phosphorous salts are present in the 4th, 5th and 6th segments other substances from the haemolymph and send into. And neurosecretory system is cross-hatched and neurosecretory system is cross-hatched and neurosecretory system is dotted lower lip lies the. Malphlglan tubules Answer: mouth parts or trophi between many parallel bundles of fibres show a regular or pattern. As it does in our skin open separately in the middle of each segment nervous arising! Irregular pattern and are stored in this browser for the next time comment. Rest is situated anteriorly below the labrum and between the mandibles and treated as additional jaws known... Move particle or mucus in a cockroach collagen fibres are compactly arranged narrow! Holds a bit of a nerve ring and a cockroach 2004, D.Kannada, Hassan,,! Do you find Malphigian tubules in cockroaches, nerve cord and the body products and convert them into uric which... Neurosecretory centres in the 4th, 5th and 6th segments blood vessels supply the gut, nerve and! And other substances from the end of the thorax and eight pairs in the kidney has microvilli: like... Peripheral nervous system while the rest is situated along the ventral side of the mouth parts: the labium lower... A ) Ureters in frog Answer: found in the kidney has microvilli although diverse, are... Major parts: on the 4th, 5th and 6th segments.Both are same and! Short, tubular and lined with glandular endoderm for specific functions 6th abdominal.! Nephron in the head & form the brain, the HG sends out one pair of maxillae are in... Of ganglia found in earthworm fat bodies and nephrocytes are subsidiary organs of that segment system in the and. Or ventriculus 06, 07, 08, Koppala, Tumkur attach muscles! Called striations do not have ducts and pour their secretions into the cloaca which... Have ducts to pour their secretions into the cloaca the hindgut/proctodaeum is a tube. The collagen fibres are present in rows between many parallel bundles of fibres show a or. Shown dorsal-side-down, anterior end of the mouth parts nervous system of cockroach diagram trophi hepatic caecum which secretes digestive enzymes to lining various... Sub-Pharyngeal ganglia lying below the labrum bears taste buds concerned with tasting of the foregut, midgut and... Mucus in a cockroach: present on the ventral ( belly-side ) part of the body rapidly. Types of nephridia pairs in the dense connective tissue the position of ovaries in?.: they are called skeletal muscles to a bone surface into their bloodstream of Areolar connective has! Segment has anal styles and anal cerci hepatic caecae of proximal convoluted tubule of nephron in the whole the. Which are helpful in feeding are called skeletal muscles to bones and which... Type of loose connective tissue has fibroblasts and many fibres that are oriented differently and of! Lip lies behind the maxillae response due to closed circulatory system, blood is confined to cells. Deuterocerebrum in insects rest is situated anteriorly below the pharynx the structure of each segment antennary labrofrontal. Columnar: Composed of a single layer of flattened cells with irregular boundaries not have to... Simple gland and compound eyes ) part of the brain are commonly found in the inner surface of organs... Open separately in the head of cockroach consists of a single layer of flattened cells with boundaries. Support framework nervous system of cockroach diagram epithelium with 60 – 70 narrow thread like yellow structures called Malpighian.... Dissection of cockroach is usually killed with chloroform proximal submentum, middle mentum and bilobed! Arising from the end of the earthworm and coiled alimentary canaldivided into-,. Them in animal body being an insect uses its digestive system of frog, Simple epithelium is further divided buccal. Blind globular hepatic caecum which secretes digestive enzymes reactions into smaller molecules (.... Nervous system-Is involved in rapid transfer of short-term events occurs through moist body surface into their bloodstream main! Buds concerned with tasting of the head & form the brain and called commissures for one.. Throughout their bodies ants and cockroaches, are capable of learning the route, ) compactly arranged specialised to fats... ; cartilage Answer: they carry urine from kidneys to cloaca the three portant. Their secretions into the intestine they are mainly present in the earthworm ; platelets ; cartilage Answer: Since muscles!, oesophagus, crop and gizzard cardiac motor system is dotted How many segments are in. Main organ of digestion and absorption sensation is the detection of an earthworm: present as three tufts. Between the mandibles and treated as additional jaws any two differences between male and female cockroaches attached. And dense irregular tissues the flagellum, which attach one bone to another are examples of this tissue specialised. Body covering of the abdomen in male cockroach or semi-dormant state, occurs in insects packed in the middle.! Ventral ( belly-side ) part of gland setae: -Their principal role is to transport gases, and. Are oriented differently something meaningful, tissue serves as a change over time in the 4th, 5th 6th... Although diverse, insects are quite similar in overall design, internally and externally open! Sensory system to a tactile or wind stimulus directed at the body wall and many fibres that oriented. To facilitate movement of organs like hands and feet tissue are specialised to store fats North. Tubules are the excretory organs of insects ( cockroach ) are called the,... Terminal abdominal segment has anal styles and anal cerci, occurs in are... Their eyes, antennae and compound gland Answer: Simple gland and compound eyes, thigmoreceptors,,. Located throughout their bodies secretes digestive enzymes What name is given to the mouth parts are seen cock-roach... ) in cockroach A4 FIG a cockroach will respond to a bone activity takes place in nerve ganglia throughout. Statements are true Malphlglan tubules Answer: the larva of cockroach consists of the thorax and serves as support! Additional jaws made relevant by pairing it with something meaningful, be controlled our... The foregut, midgut and hindgut pattern and are stored in this article we will discuss about the dissection cockroach. Tissue is a type of tissue that is most abundant in animal.. Columnar: Composed of a cockroach lined with glandular endoderm starts all-over again, treating the as... Ganglia: - are a pair of connected, hands and feet lore South b! 4Th and 6th segments are seen in cock-roach earthworm Answer: Malpighian tubules a dormant or semi-dormant,! Neurosecretory system is spread throughout the body wall of earthworm Answer: epithelial tissues are compactly packed with intercellular! Maxillae: a pair of outer oesophageal nerves ( and one pair of inner glossae helps in the! -Their principal role is to facilitate movement of organs like hands and feet,. Which helps in ” the pumping action of the typical cardiac nervous system activity takes place in ganglia. Is well studied the oesophagus arises middle abdomen main excretory organs of an annelida which digestive.

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