Question 6. (e) Protonema; mesothorax; metathorax; coxa 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. Question 5. What is their shape? Answer: (i) Give the common name of Periplanata americana (iv) Labium: The labium or lower lip lies behind the maxillae. Integration is the sorting and evaluation of information. Answer: 1. Explain the nervous system of cockroach. Subject Matter of Circulatory System in Cockroach 2. Blood is a fluid connective tissue. Answer: (b) Cardiac muscle and striated muscle A cockroach will respond to a tactile or wind stimulus directed at the body by rapidly turning away from the stimulus and running. Question 5. Answer: Question 16. Respiration by lungs is called pulmonary respiration Reptiles, Mammals have that. Question 3 The sensory cells, central nervous system component, and … 2005, Udupi.06, 08, D.K. What is its matrix called? For example, the antennal nerve carries, . What are Malpighian tubules? 2. Respiration by skin is known as cutaneous respiration. (b) Compound eye – (ii) Cockroach Answer: Question 4. 2 large ovaries are found lying laterally in the 2nd to 6th abdominal segment. Answer in one word or one line. (Belgaum 2004) Simple gland is composed of single-cell while compound gland is composed of multiple cells. (a) Prostomium and peristomium The prementum bears a pair of outer paraglossae and a pair of inner glossae. They show alternate dark and light bands called striations. (b) RBC; WBC; platelets; cartilage Why are smooth muscles called Involuntary muscles? Name one specialised connective tissue. Question 12. which must be broken down by catabolic reactions into smaller molecules (i.e. (v) Where do you find Malpighian tubules? Answer: Simple epithelium is composed of one layer of cells while compound epithelium is composed of more than one layer of cells. They cover the dry surface of the skin, the moist surface of buccal cavity, pharynx, inner lining of ducts of salivary glands and of pancreatic ducts. Question 19. 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, . (iii) How does it differ from adipose tissue? Question 10. The digestive system mainly consists of the foregut, midgut and hindgut. Also learn about:- 1. (i) Draw a labelled diagram of areolar connective tissue. Question 4. Name two groups of animal that have it. The structure and function of the deuterocerebrum in insects. Peripheral Nervous System: It consists of nerves, which are given off from the ganglia so as to innervate all the parts of the body. Tendon. What is meant by cutaneous respiration? Name two kinds of filaments of microfibrils. Name the excretory organs of an earthworm. Respiratory exchange occurs through moist body surface into their bloodstream. Liver secretes bile into duodenum. Each tubule is lined by glandular and ciliated cells. 1. Question 23. (c) The body wall of earthworm They are embedded in the epidermal pits in the middle of each segment. It is a cylindrical and tubular structure present above the labium between maxillae. Answer: Question 9. Blood cells are phagocytic in nature. Mechanism. and J.G. Where are they attached to the body? Unmyelinated nerve fibres are commonly found in spinal and cranial nerves Which of the above statements are true? It is connected to two sub-pharyngeal ganglia lying below the pharynx. A functional diagram of the typical cardiac nervous system in the middle abdomen. What are the cellular components of blood? There are several neurosecretory centres in the brain, the largest being the pars intercerebralis. An insect uses its digestive system to extract nutrients and other substances from the food it consumes. There are two types of epithelial tissues. Their nuclei are located at the base. Question 1. In the head region, only a little bit of the nervous system is present while the majority is situated on the ventral side of the body. Question 13. (D.Kannada 2005) What Is a nymph? Answer: The mouth is situated anteriorly below the labrum and between the mandibles. Answer: (v) Where do you find Malphigian Tubules? (i) What is the function of nephridia? 06, 07, 08, Koppala, Tumkur. The head holds a bit of a nervous system while the rest is situated along the ventral (belly-side) part of its body. A double ventral nerve cord runs up to the last segment. Answer: What are anal styles? The epithelium of proximal convoluted tubule of nephron in the kidney has microvilli. Tail like structure of a neuron. (D. Kannada 2006) Mention the function of the following. It is located in trachea and bronchi. Most of this food is ingested in the form of macromolecules and other complex substances (such as proteins, polysaccharides, fats, nucleic acids, etc.) The glands which have ducts to pour their secretions into the respective site of action are called exocrine glands, e.g. The nervous system comprises of central, peripheral and sympathetic nervous system. Write four functions of bones. Orientation of fibres show a regular or irregular pattern and are called dense regular and dense irregular tissues. Malpighian tubules are the main excretory organs of the cockroach. Question 22. What do fibroblasts synthesize? Roaches' heads house their eyes, antennae and mouthparts. Answer: Electrochemical information involving neurons. (iv) How many segments are present in the abdomen of a cockroach? AL, antennal lobe; DV, dorsal blood vessel; L, lamina; LCB, lower central body; Lo, of the fly (an insect with particularly good vision) contains about, (MB, corpora pedunculata, 'stalked bodies') are best, ). 3. The oeophagus is narrow and connects the buccal cavity to the crop. If the head of cockroach is cut off, it will still alive for as long as one week. Answer: (c) Exocrine; endocrine; salivary gland; ligament Their function is to move particle or mucus in a specific direction over the epithelium. Answer: How are they distributed in cockroach. Answer: Dense irregular connective tissue has fibroblasts and many fibres that are oriented differently. (f) Osteocytes – (vi) Phallomere They are the excretory organs of a cockroach. Answer: Mention the function of the following. The epidermis is made up of a single layer of columnar epithelial cells which contain secretory gland cells. Answer: The glands which do not have ducts and pour their secretions directly into the blood are called endocrine glans. (iii) What is the position of ovaries in a cockroach? It has sensory/receptor cells. Pharynx is narrow tubular part from where the oesophagus arises. Question 4. Name two group of animal that show it. The appendages surrounding the mouth which are helpful in feeding are called the mouth parts or trophi. Question 7. Answer: Answer: The insect is made up of three main body regions (tagmata), the head, thorax and abdomen. c – (y) Answer: Peristomium is from where the true segment of the earthworm body starts. (b) Malpighian tubules The mouth parts of Cockroach includes labrum (upper lip), mandibles, maxillae, labium (lower lip) and hypopharynx (tongue). In a cockroach, the nervous system is spread throughout the body. Question 24. Circulating Fluid in Cockroach 3. between adjacent vertebrae in the vertebral column. 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