Structural Organisation in Animals and Plants

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In frog, the Renal portal system is a special venous connection that acts to link : Answer: 4. Kidney and lower part of body Key idea: A portal system begins and ends in capillaries. In frogs, the renal portal system carries... Frog: digestive, circulatory, respiratory, nervous and reproductive systems 1 answer
Frogs respire in water by skin and buccal cavity and on land by skin, buccal cavity and lungs. Choose the correct answer from the following : Answer: 3. The statement is false for water but true for land Key idea: Frogs breathe through the skin in water, and through the lungs on la... Frog: digestive, circulatory, respiratory, nervous and reproductive systems 1 answer
Which of the following statement is correct about location of the male frog copulatory pad ? Answer: 4. First digit of the fore limb Key idea: Male frogs have a copulatory (nuptial) pad on the first digit of each forelimb. It helps t... Frog: morphology and anatomy 1 answer
What is the name of the blood vessel that carries deoxygenated blood from the body to the heart in a frog ? Answer: 4. Vena cava Key idea: In a frog, veins called the vena cavae (precaval and postcaval) bring deoxygenated blood from the body to the... Frog: digestive, circulatory, respiratory, nervous and reproductive systems 1 answer
Match List I with List II :List I:A. Unicellular glandular epitheliumB. Compound epitheliumC. Multicellular glandular epitheliumD. Endocrine glandular epitheliumList II:I. Salivary glandsII. PancreasIII. Goblet cells of alimentary canalIV. Moist surf… Answer: 4. A-III, B-IV, C-I, D-II Unicellular glandular epithelium - goblet cells (A-III). Compound epithelium - moist surface of buccal cav... Animal tissues: epithelial, connective, muscular, neural 1 answer
Match List I with List II related to digestive system of cockroach.List I:A. The structures used for storing of food.B. Ring of 6-8 blind tubules at junction of foregut and midgut.C. Ring of 100-150 yellow coloured thin filaments at junction of midgu… Answer: 2. A-IV, B-II, C-III, D-I Crop stores food (A-IV). Gastric caeca: a ring of 6-8 blind tubules at the foregut-midgut junction (B-II).... Frog: morphology and anatomy 1 answer
In both sexes of cockroach, a pair of jointed filamentous structures called anal cerci are present on : Answer: 3. 10^th segment The cockroach abdomen has 10 segments. Anal cerci, a pair of jointed filamentous structures, are present on the 10t... Frog: morphology and anatomy 1 answer
Three types of muscles are given as a, b and c. Identify the correct matching pair along with their location in human body :Name of muscle/location Answer: 3. (a) Skeletal - Triceps; (b) Smooth - Stomach; (c) Cardiac - Heart. Key idea: identify the tissue from the drawing, then its locat... Animal tissues: epithelial, connective, muscular, neural 1 answer
Match List I with List II.List I: A. Mast cells; B. Inner surface of bronchiole; C. Blood; D. Tubular parts of nephronList II: I. Ciliated epithelium; II. Areolar connective tissue; III. Cuboidal epithelium; IV. specialised connective tissueChoose th… Answer: 4. A-II, B-I, C-IV, D-III Key idea: Match the cell or location with its tissue. Mast cells: areolar connective tissue (II). Inner su... Animal tissues: epithelial, connective, muscular, neural 1 answer
Which of the following is characteristic feature of cockroach regarding sexual dimorphism ? Answer: 3. Presence of anal styles Key idea: In cockroaches, males have a pair of anal styles that females lack. Both sexes have anal cerci,... Frog: morphology and anatomy 1 answer
In cockroach, excretion is brought about by-A. Phallic glandB. Urecose glandC. NephrocytesD. Fat bodyE. Collaterial glandsChoose the correct answer from the options given below: Answer: 4. B, C and D only Key idea: In cockroaches, excretion is done by Malpighian tubules, and also by fat body, nephrocytes and urecose... Frog: morphology and anatomy 1 answer
Match List I with List II.List I (Cells): A. Peptic cells; B. Goblet cells; C. Oxyntic cells; D. Hepatic cellsList II (Secretion): I. Mucus; II. Bile juice; III. Proenzyme pepsinogen; IV. HCl and intrinsic factor for absorption of vitamin B_12Choose… Answer: 4. A-III, B-I, C-IV, D-II Key idea: Match the gastric and liver cells with their secretions. Peptic (chief) cells: pepsinogen, a pro... Animal tissues: epithelial, connective, muscular, neural 1 answer
Given below are two statements:Statement I: Ligaments are dense irregular tissue.Statement II: Cartilage is dense regular tissue.In the light of the above statements, choose the correct answer from the options given below: Answer: 3. Both Statement I and Statement II are false. Key idea: Check the type of tissue for each structure. Statement I is false: ligamen... Animal tissues: epithelial, connective, muscular, neural 1 answer
Once the undigested and unabsorbed substances enter the caecum, their backflow is prevented by- Answer: 3. Ileo - caecal valve Key idea: The valve between the ileum and caecum prevents backflow. The ileo-caecal valve guards the opening... Frog: digestive, circulatory, respiratory, nervous and reproductive systems 1 answer
Match List - I with List - II.List - I: (a) Bronchioles (b) Goblet cell (c) Tendons (d) Adipose TissueList - II: (i) Dense Regular Connective Tissue (ii) Loose Connective Tissue (iii) Glandular Tissue (iv) Ciliated EpitheliumChoose the correct answer… Answer: 2. (a) - (iv), (b) - (iii), (c) - (i), (d) - (ii) Key idea: Match each structure with its tissue. (a) Bronchioles: ciliated epitheli... Animal tissues: epithelial, connective, muscular, neural 1 answer
Which of the following functions is not performed by secretions from salivary glands ? Answer: 1. Digestion of disaccharides Key idea: Salivary amylase digests starch, but no salivary enzyme digests disaccharides. Salivary amyl... Frog: digestive, circulatory, respiratory, nervous and reproductive systems 1 answer
Tegmina in cockroach, arises from : Answer: 3. Mesothorax Key idea: In cockroach, the forewings are tegmina and arise from the mesothorax. The hind wings (membranous) arise fro... Frog: morphology and anatomy 1 answer
Which of the following is not a connective tissue ? Answer: 1. Neuroglia Key idea: Neuroglia are supporting cells of nervous tissue. Blood, adipose tissue and cartilage are all connective tiss... Animal tissues: epithelial, connective, muscular, neural 1 answer
Following are the statements about prostomium of earthworm.(a) It serves as a covering for mouth.(b) It helps to open cracks in the soil into which it can crawl.(c) It is one of the sensory structures.(d) It is the first body segment.Choose the corre… Answer: 1. (a), (b) and (c) are correct The prostomium is a lobe that covers the mouth, is sensory and helps in opening cracks in the soil.... Frog: digestive, circulatory, respiratory, nervous and reproductive systems 1 answer
Identify the types of cell junctions that help to stop the leakage of the substances across a tissue and facilitation of communication with neighbouring cells via rapid transfer of ions and molecules. Answer: 2. Tight junctions and Gap junctions, respectively. Tight junctions seal cells and stop leakage of substances across a tissue. Gap j... Animal tissues: epithelial, connective, muscular, neural 1 answer
Which of the following characteristics is incorrect with respect to cockroach ? Answer: 1. A ring of gastric caeca is present at the junction of midgut and hind gut. The incorrect statement is the one about gastric caeca... Frog: digestive, circulatory, respiratory, nervous and reproductive systems 1 answer
Goblet cells of alimentary canal are modified from : Answer: 2. Columnar epithelial cells Goblet cells, the mucus-secreting unicellular glands in the lining of the alimentary canal, are modifie... Animal tissues: epithelial, connective, muscular, neural 1 answer
If the head of cockroach is removed, it may live for few days because : Answer: 3. the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body. Key idea: A... Animal tissues: epithelial, connective, muscular, neural 1 answer
Cuboidal epithelium with brush border of microvilli is found in : Answer: 3. proximal convoluted tubule of nephron Key idea: Brush-border cuboidal epithelium is found where absorption and secretion occur. I... Animal tissues: epithelial, connective, muscular, neural 1 answer

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