Description : Match the following columns and select the correct option. Column-I Column-II (A) Organ of Corti (i) Connects middle ear and pharynx (B) Cochlea (ii) Coiled part of the labyrinth (C) Eustachian tube (iii) Attached to the oval window (D) Stapes (iv) Located on the basilar membrane
Last Answer : (C) Eustachian tube (iii) Attached to the oval window
Description : Differentiate between any five of the following. (i) Artery and vein (ii) Hard water and soft water (iii) E-mail and Snail mail (iv) Apes and monkey (v) Hydrostatics and hydrodynamics (vi) Comet and ... (vii) Barrage and dam (viii) Electron and hole (ix) Isobars and isotopes (x) Autopsy and biopsy
Last Answer : Answers: (i) Artery and vein: Arteries: Muscular blood vessels that carry blood away from the heart. All arteries, with the exception of the pulmonary and umbilical arteries, carry oxygenated blood ... to determine cause of death Biopsy: Removal and study of a tissue sample for diagnostic purposes
Description : Explain the following: (i) Blood group (ii) Short circuit (iii) Short sight (iv) International date line (v) Plaster of Paris
Last Answer : Answers: (i) Blood group A blood type (also called a blood group) is a classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood ... calcium sulfate hemihydrate, nominally CaSO4 0.5H2O. It is created by heating gypsum to about 150 °C.
Description : Name the quantities which are measured by the following units. (i) Newton (ii) Joule (iii) Watt (iv) Volt (v) Light year (vi) Angstrom (vii) Acre-foot (viii) Becquerel (ix) Hertz (x) Cusec
Last Answer : Answers: (i) Force (ii) Work Energy (iii) Power of electricity (iv) Potential difference (v) Distance of stars and planets (vi) Length (vii) Volume (viii) Radioactivity (ix) Frequency (x) Rate of flow of water
Description : Give scientific reasons (in not more than four lines each) for the following: (i) Meat takes longer to cook on the mountains (ii) Water remains cool in earthen pitchers (iii) Ice and salt ... to sleep under trees during the night. (v) Greenhouse operators paint their glass roofs white in summer.
Last Answer : (i) Meat takes longer to cook on the mountains: The atmospheric pressure decreases as the altitude increases. The boiling point of water is 100 c at standard atmospheric pressure. At the mountains this ... of light to a maximum. And therefore white colour is painted on the roofs in the summer.
Description : Which quantity do the following units measure: (i) Volt (ii) Coulomb (iii) Walt (iv) Ohm (v) Mho (vi) Ampere (vii) Dyne (viii) Celsius (ix) Joule (x) Calorie
Last Answer : Answers: (i) Voltage (ii) Charge of Electricity (iii) Power (iv) Resistance (v) Conductivity (vi) Current (vii) Force (viii) Temperature (ix) Energy (x) Heat
Description : Explain any five of the following terms (in not more than four lines each): (i) Osmosis Glycolysis (ii) Phototaxis (iii) Transpiration (iv) Saponification (v) Emulsion
Last Answer : (i) Osmosis: osmosis, in botany and chemistry, the flow of one constituent of a solution through a membrane while the other constituents are blocked and unable to pass through the (selecyively permeable membrane ... in a second liquid with which the first will not mix: an emulsion of oil in vinegar
Description : What is the difference between. (i) BIT and BYTE (ii) RAM and ROM (iii) C.U. and A.L.U (iv) Hardware and Software (v) Personal computer and mainframe
Last Answer : Personal computer and mainframe: Personal Computer (PC): Short for personal computer or IBM PC. The first personal computer produced by IBM was called the PC, and increasingly the term ... mainframes and minicomputers is vague, depending really on how the manufacturer wants to market its machines.
Description : Name the instruments used for measuring each of the following: (i) Pressure (ii) Voltage (iii) Purity of milk (iv) Temperature (v) Velocity of wind
Last Answer : Answers: (i). Barometer (ii). Voltmeter (iii). Lactometer (iv). Thermometer (v). Anemometer
Description : Which part of the human ear plays no role in hearing as such but is otherwise very much required? (a) Eustachian tube (b) Organ of corti (c) Vestibular apparatus (d) Ear ossicles
Last Answer : (c) Vestibular apparatus
Description : What organ of human body controls the amount of water and salt in blood?
Last Answer : Ans. kidneys
Description : Eustachian Tube, is located in which part of human body? (1) Nose (2) Ear (3) Eyes (4) Throat
Last Answer : (2) Ear Explanation: The Eustachian Tube is a tube that links the nasopharynx to the middle ear. It is a part of the middle ear. The Eustachian tube connects from the chamber of the middle ear to the back of the nasopharynx. It is named after the 16th century anatomist Bartolomeo Eustachi.
Description : Eustachian Tube is located in which part of human body? (1) Nose (2) Ear (3) Eyes (4) Throat
Last Answer : Ear
Description : The figure given below depicts a diagrammatic sectional view of the human female reproductive system. Which set of three parts out of I-VI have been correctly identified? I II III V VI IV (a) (II) ... , (V) Uterus, (VI) Cervix (d) (I) Perimetrium, (II) Myometrium, (III) Fallopian tube
Last Answer : (b) (III) Infundibulum, (IV) Fimbriae, (V) Cervix
Description : Give scientific reason of the following 1. rain water is more fertile than water from tube well 2. the man-hole covers are generally round 3. clothes of a moving dancer bulge 4. peoples are advised not to stand near a fast moving train 5. the image of a tree looks inverted on the bank of a lake
Last Answer : 1. rain water is more fertile than water from tube well after falling, the rain drops start moving on slope side, during this movements, the soluble salts and minerals solves from top soil in the ... a lake This is due to the law of reflection according to which image is formed far and inverted
Description : Select the answer with correct matching of the structure, its location and function. Structure Location Function (a) Eustachian Anterior Equalizes air tube part of pressure on internal ear either sides ... the place Rods and cones where optic are present but nerve leaves inactive here the eye
Last Answer : (c) Hypothal Forebrain Controls body -amus temperature, urge for eating and drinking
Description : What are Endocrine Glands? Name any two. From which part of the body are the following secreted: a) Insulin b) Thyroxin c) Adrenaline d) Oestrogen e) Testosterone f) Cortisol
Last Answer : These are those glands which pour their secretions directly into the blood stream . Their secretions are called as Hormones which are the chemical substances produced by the cells of one part and transported ... and many other functions of body and mind. E.g. Pituitary Gland, Thyroid Gland etc.
Description : Define RECEPTORS in man. Name different receptor organs in human body.
Last Answer : In a sensory system, a sensory receptor is a sensory nerve ending that recognizes a stimulus in the internal or external environment of an organism. Following are the different sensory ... to temperature, either heat, cold or both Electromagnetic Receptors's respond to electromagnetic waves
Description : Name the parts of human body from where the following secreted:
Last Answer : (a) Insulin- Pancreas (b) thyroxin-thyroid gland (c) adrenalin- Adrenal Medulla (d) oestrogen- From ovaries (in females) (e) cortisol- From adrenal cortex (f) Testosterone- From testis (in males) and from adrenal cortex in both males and females.
Description : What are the deficiency effects of the following nutrients in the human body?
Last Answer : a) Iron Iron Deficiency Anemia b) Iodine Goiter c) Fluoride May cause increased dental caries and possibly osteoporosis d) Vitamin A Vitamin A is essential for night vision and improves ... also causes osteomalacia in the adults. Humans have the ability to synthesize vitamin D from sunlight.
Description : Name any two glands which secretes hormones in human body
Last Answer : Ans. Thyroid and Pituitary , Pancreas
Description : The only connective tissue in which the cells occur in groups or rows are (a) bone (b) cartilage (c) tendon (d) ligament
Last Answer : Ans:(c)
Description : The connective tissue that connects a muscle to a bone is – (1) Cartilage (2) Ligament (3) Tendon (4) Interstitial fluid
Last Answer : (3) Tendon Explanation: A tendon or sinew is a tough band of fibrous connective tissue that usually connects muscle to bone and is capable of withstanding tension. Tendons are similar to ligaments; ... made of collagen. Ligaments join one bone to another bone, while tendons connect muscle to bone.
Description : In which one of the following preparations are you likely to come across cell junctions most frequently? (a) Thrombocytes (b) Tendon (c) Hyaline cartilage (d) Ciliated epithelium
Last Answer : (d) Ciliated epithelium
Description : Choose the correctly matched pair. (a) Tendon - Specialized connective tissue (b) Adipose tissue - Dense connective tissue (c) Areolar tissue - Loose connective tissue (d) Cartilage - Loose connective tissue
Last Answer : (c) Areolar tissue - Loose connective tissue
Description : The connective tissue that connects a muscle to a bone is (1) Cartilage (2) Ligament (3) Tendon (4) Interstitial fluid
Last Answer : Tendon
Description : What are minerals ? For most of the part minerals are constituted of eight elements, name any six of them. State the six characteristics that are used to identify minerals
Last Answer : Minerals Natural substance belonging to a group of inorganic (often crystalline) compounds which are found in the earth, that which is not animal or vegetable A mineralis a naturally occurring substance ... transmit light. Depending on a number of things, rocks & minerals can also transmit light.
Description : Give scientific reason of the following: (1) Pole star is always seen in the north. (2) We never see birds urinating. (3) Pasteurized milk has more nourishment than the ordinary boiled milk. (4) Bees die when they sting human beings. (5) Cloudy nights are usually warmer than the clear ones.
Last Answer : (1) Pole star is always seen in the north. Because the pole star, which we have in the south, is too faint that it cannot be seen from the naked eye. or Because the earths motion is from ... to get lost in the atmosphere, above the clouds. Ultimately, the heat produced in the vicinity is restored.
Description : What is Ozonoshpere? Discuss the human technologies which are causing its depletion. What harm to man this depletive state would cause?
Last Answer : Ozonosphere A layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun The ozone layer is a layer ... of the ozone layer. Wind patterns could change, resulting in climatic changes throughout the world.
Description : Name the organs responsible for the following functions present in either elements, plants or human. a) Vision b) Reproduction c) Hormone secretion d) Blood pumping e) Food storage
Last Answer : Answers: a) Eye b) Gonades c) Glands d) Heart e) Stem and stomach
Description : Vitamin D is the essential component of the Body.
Last Answer : Ans: Vitamin D is responsible for the absorption of calcium and phosphorus in the bones..
Description : What are Endocrine Glands ? Name any two . From which of the body are the following secreted :
Last Answer : Group of organs and tissues of the body that release hormones. The endocrine glands and their hormones regulate the growth, development, and function of various tissues and coordinate ... Thyroxin: Thyroid Adrenaline: Adrenal medulla Estrogen: Ovaries Testosterone: Testes Cortisol: Adrenal cortex
Description : (4) Fundamental unit of nervous system Explanation: A neuron is a cell that carries electrical impulses. Neurons are the basic units of the nervous system and its most important part is the brain. Every neuron is made of a cell body (also called a soma), dendrites and an axon.
Last Answer : Water cycle refers to - (1) an integrated attempt to recycle water in relatively arid regions (2) constant movement of water from ocean to land and back to ocean once again (3) ... management of water in areas excessively plagued with water-logging (4) water distribution in relatively dry area
Description : Eustachian tube is supported by : -
Last Answer : Eustachian tube is supported by : - A. Elastin cartilage B. white fibros cartilage C. Calcified cartilage D. Hyaline catilage
Description : What are the similarities between humans and frogs eustachian tube?
Last Answer : Need answer
Description : Eustachian tube patency?
Last Answer : DefinitionEustachian tube patency refers to how much the eustachian tube is open. The eustachian tube runs between the middle ear and the throat. This tube controls the pressure behind the eardrum ... altitude changes can increase pressure in the ear, causing the eustachian tube to become blocked.
Description : Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort? (a) One can breathe out air totally without oxygen. (b) One can breathe out air ... ribs at all. (d) The lungs can be made fully empty by forcefully breathing out all air from them
Last Answer : (b) One can breathe out air through Eustachian tube by closing both nose and mouth
Description : The ciliated columnar epithelial cells in humans are known to occur in (a) Eustachian tube and stomach lining (b) bronchioles and Fallopian tube (c) bile duct and oesophagus (d) Fallopian tube and urethra.
Last Answer : (b) bronchioles and Fallopian tube
Description : The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in (a) bronchioles and Fallopian tubes (b) bile duct and bronchioles (c) Fallopian tubes and pancreatic duct (d) Eustachian tube and salivary duct
Last Answer : (a) bronchioles and Fallopian tubes
Description : Cuboidal epithelium with brush border of microvilli is found in (a) lining of intestine (b) ducts of salivary glands (c) proximal convoluted tubule of nephron (d) Eustachian tube
Last Answer : c) proximal convoluted tubule of nephron
Description : Fact which need not be proved explained in ______of Indian evidence act. a) Part II, Chapter III b) Part II, Chapter IV c) Part III, Chapter II d) Part IV, Chapter V
Last Answer : a) Part II, Chapter III
Description : In which part of the Indian Constitution, the Fundamental rights are provided? (a) Part II (b) Part III (c) Part V (d) Part IV
Last Answer : (a) Part II
Description : The fundamental duties of the Indian citizens was taken from the article of - (i) Part IV (A) (ii) Part IV (B) (iii) Part V (A) (iv) Part V (B)
Last Answer : (i) Part IV (A)
Description : Match the items given in column I with those in column II and select the correct option given below. Column I Column II (Function) (Part of excretory system) A. Ultrafiltration (i) Henle's loop B. Concentration (ii) Ureter of urine C. ... (ii) (iii) (c) (v) (iv) (i) (ii) (d) (v) (iv) (i) (iii)
Last Answer : (b) (iv) (i) (ii) (iii)
Description : (a) IN WHICH PART OF HUMAN FEMALE REPRODUCTIVE SYSTEM DO THE FOLLOWING EVENTS TAKE PLACE. (i) RELEASE OF FIRST POLAR BODY (ii) RELEASE OF SECOND POLAR BODY (iii) FERTILISATION (iv) IMPLANTATION (b) NAME TWO HORMONES SECREATED ONLY DURING PREGNANCY.
Last Answer : ANS (a) (i) OVARY (ii) FALLOPIAN TUBE (iii) AMPULLA-ISTHAMUS JUNCTION OF FALLOPIAN TUBE (iv) ENDOMETRIUM LINING OF UTERUS (b) HUMAN CHORIONIC GONADOTROPIN AND HUMAN PLACENTAL LACTOGEN
Description : Why is the water in an open pond cool even on a hot summer day?
Last Answer : Answer: As the water evaporates from the open surface of a pond, heat is taken away in the process, leaving the surface cool.
Description : Why does kerosene float on water?
Last Answer : Answer: Because the density of kerosene is less than that of water. For the same reason cream rises in milk and floats at the top.
Description : Why does moisture gather outside a tumbler containing cold water?
Last Answer : Answer: The water vapour in the air condenses on cooling and appears as droplets of water.
Description : Why does ice float on water?
Last Answer : Answer: The weight of the ice block is equal to the weight of the liquid displaced by the immersed portion of the ice.
Description : Why does a small iron sink in water but a large ship float?
Last Answer : Answer: The weight of water displaced by an iron ball is less than its own weight, whereas water displaced by the immersed portion of a ship is equal to its weight (Archimedes? Principle).