Gen Science And Technology Take Me home 12345678910111213141516171819202122232425262728293031 Gen Science Quiz 1 Bio Questions 30 1 / 31 Food is normally digested in the small intestines liver large intestines stomach 2 / 31 Main substance involved in transfer of electrons in photosynthesis is both (a) and (b) cytochrome phytochrome FAD 3 / 31 Bacteria do not need sunlight to grow because they prepare their food without the help of sunlight they hate sunlight they lack chlorophyll and so they are incapable of making their own food they use other kinds of light for their food synthesis 4 / 31 A mature living cell without a nucleus is a sieve tube sieve cell sieve cell companion cell vessel 5 / 31 All the following are invertebrates except fish crab snail prawn 6 / 31 Who is known as the "Father of Microbiology"? Antonie Van Leeuwenhoek Robert Koch Jonas Salk Louis Pasteur 7 / 31 Mumps is a disease caused by fungus none of these virus bacterium 8 / 31 A 'biological death' occurs/takes place when there is no pulse and heart beat all the body cells die after a few hours of clinical death pupils show no reaction to light pupils are fixed and dilated 9 / 31 Adenosine Triphosphate (ATP) is a hormone a an enzyme a protein a molecule with high energy bonds 10 / 31 A balanced diet contains butter and ghee macro and micronutrients food nutrients for growth and main- tenance animal protein 11 / 31 Dialysis is used for the treatment of none of these kidney failure brain disease heart weakness 12 / 31 Gene is all of the above a segment of DNA, RNA and histone a segment of DNA or functional RNA a segment of DNA and histone 13 / 31 Banana fruit contains mainly glucose fat starch proteins 14 / 31 Most fish do not sink in water because of the presence of the (i) swim bladder (ii) air bladder (iii) air sacs (iv) air in spongy bones i, ii, iii and iv are correct iii and iv are correct ii and iii are correct i and ii are correct 15 / 31 What happens during seed germination? starch is synthesized light is absorbed heat is liberated starch is synthesized 16 / 31 Manufacturing food by the process of photosynthesis in plants is an example of anabolism neither anabolism nor catabolism both anabolism and catabolism catabolism 17 / 31 Ductless glands are known as alveolar glands exocrine glands endocrine glands tubular glands 18 / 31 Human urine as compared to human blood is all of these hypotonic hypertonic hypertonic 19 / 31 A woman receives her X-chromosome from either her mother or her father her father only her mother only both her mother and father 20 / 31 A food chain consists of a producer only decomposer only producer and a consumer consumer only 21 / 31 Lungs are enclosed in pericardium pleural membrane peritoneum none of these 22 / 31 A person having which of the following blood groups can receive blood of any group? O A AB B 23 / 31 A doctor advises a patient to take plenty of citrus fruits, guavas, tomatoes and amalas over a period of 2 months regu- larly. What do you think the patient is suffering from? extreme weakness, swelling and pain in legs, loss of appetite, headache spongy, swollen and bleeding gums softness and pain in bones, bending of vertebral column blurred vision, burning and dryness of eye and tongue, cracking of skin at the corner of the mouth 24 / 31 A highly evolved human brain contains approximately 100 million nerve cells 100,000 nerve cells 10,000 million nerve cells 10,000 nerve cells 25 / 31 Deficiency of iron in human diet causes rickets scurvy anaemia goitre 26 / 31 13. A healthy freshwater fish is placed in salt- water. The expected consequence of this would be that there is no observable effect on the fish provided there is sufficient food the fish becomes bloated and dies the fish suffers from a fungal or bac- terial disease and dies the fish becomes dehydrated and dies 27 / 31 Cotton fibres are made of cellulose Lipids protein fats 28 / 31 Cancer is also shown to be enhanced by components of the human diet hereditary predisposition all the above certain viruses 29 / 31 Lungs are situated in the pericardial cavity buccal cavity abdominal cavity thoracic cavity 30 / 31 Heightened emotion is caused by the salivary glands thyroid glands adrenal glands pituitary glands 31 / 31 Crows and pigeons are cold-blooded warm-blooded both (a) and (b) neither (a) nor (b) Your score is 0% Send feedback 123456789101112131415161718192021222324252627282930 Gen Science Quiz 2 Questions 30 1 / 30 Enthalpy of a compound is equal to heat of reaction heat of formation heat of combustion heat of sublimation 2 / 30 Bones are mainly made up of calcium and phosphorus calcium and sulphur calcium and iron calcium and magnesium 3 / 30 Body proteins' function is to catalyse biological reactions as en- zymes build connective tissue and cartilage transport oxygen in blood and muscles all the above 4 / 30 Which tissue is responsible for the passage of water in plants? collenchynatous cells phloem xylem sclerenchyma 5 / 30 Crows and pigeons are neither (a) nor (b) both (a) and (b) warm-blooded cold-blooded 6 / 30 Manufacturing food by the process of photosynthesis in plants is an example of both anabolism and catabolism neither anabolism nor catabolism anabolism catabolism 7 / 30 Holes in a semiconductor though they have negative charge positive charge no charge no mass 8 / 30 If a machine is lubricated with oil, then: both its mechanical advantages and mechanical efficiency increase the mechanical advantage of the ma- chine increases mechanical efficiency of machine increases its efficiency increases but its me- chanical advantages decreases 9 / 30 Diamond is the form of carbon that is alkaline chemical crystalline amorphous 10 / 30 Which of the following is the hardest element? iron copper silicon diamond 11 / 30 Enamel is a hardened transparent coating of paint a glossy coating fused to the surface of a metal, glass, or pottery none of the above a kind of clay mixed with pigments 12 / 30 Chromosomes are thread-like bodies that occur in the nuclei and carry the genetic code constituent of blood, which produces heat in the body parts of the human brain none of the above 13 / 30 Which of the following is not a chemical action? burning of paper digestion of food conversion of water into steam burning of coal 14 / 30 Hot coffee is poured simultaneously in four metallic tumblers painted outside with different types of paints. After sometime, the coffee will be found coldest in the tumbler painted rough black shining white shining black rough white 15 / 30 Elements that show the properties of both metals and non-metals are called alloys metalloids allotropes colloids 16 / 30 Effect of light on photocells produces none of these current photosynthesis energy 17 / 30 Enzymes are fatty acids carbohydrates proteins nucleic acids 18 / 30 Wisdom teeth normally grow between the age of 45-55 17-25 10-17 34-40 19 / 30 Cotton fibres are made of fats protein cellulose Lipids 20 / 30 If a bomb is released from a plane moving with uniform velocity, then by the time the bomb reaches the ground, the plane will be vertically above the bomb behind the bomb ahead of the bomb ahead or behind, depending on its velocity 21 / 30 Which of the following is not a compound of calcium? gypsum molybdenum chalk marble 22 / 30 Distillation at reduced pressure is used for liquids which have high volatility decompose before their boiling points have high boiling points have low boiling points 23 / 30 Bond present between two carbohydrate molecule is hydrogen bond phosphodiester Glycosidic amide 24 / 30 Fish plates are used in railway tracks to control the speed of the train to keep the rails equidistant to avoid tracks being distorted due to temperature fluctuation to connect two rails 25 / 30 Electromagnetic radiation is emitted by X-ray electrons ultrasonic protons 26 / 30 Cancer is also shown to be enhanced by hereditary predisposition all the above certain viruses components of the human diet 27 / 30 Energy is not carried by stationary waves longitudinal progressive waves electromagnetic waves transverse progressive waves 28 / 30 Enzymes are sensitive to pH poisons all three heat 29 / 30 Gravitational constant (G) is an example of non-dimensional constant numeric constant quantity without dimensions dimensional constant 30 / 30 During rusting the weight of iron remains unchanged iron volatilizes iron gains weight iron loses weight Your score is 0% Send feedback 123456789101112131415161718192021222324252627282930 Gen Science Quiz 3 Questions 30 1 / 30 Colloids contain only water soluble substances are suspensions of one phase in another are two-phase systems are true solutions 2 / 30 Diamond is harder than graphite because of the difference of layers of atoms difference in their structures difference of layers of atoms tetrahedral structure of diamond 3 / 30 Deforestation has an alarming effect on increase in grazing area sunlight soil erosion weed control 4 / 30 Disease caused by deficiency of vitamin-C is pellagra scurvy beriberi night blindness 5 / 30 Containers for carrying strong acids are made of lead copper brass platinum 6 / 30 Deficiency of iron in human diet causes scurvy anaemia goitre rickets 7 / 30 Colloids are purified by peptization condensation coagulation dialysis 8 / 30 Covalent bonds are mainly found in none of the above inorganic compounds electrolytes organic compounds 9 / 30 Coating of iron with zinc is known as galvanization none of these ionization electroplating 10 / 30 Choose the only scalar quantity from the following: energy force momentum torque 11 / 30 Cosmic rays are uncharged particles are charged particles none of these can be charged as well as uncharged 12 / 30 Cooking is quicker in a pressure cooker because water boils at lower temperature steam cooks food faster steam is not wasted increased pressure raises boiling point 13 / 30 Delicious chilgoza seeds, commercially important products such as turpentine and resin and the drug ephedrine, useful in asthma and other respiratory ailments. are all obtained from plants that are algae ferns monocotyledons and dicotyledons gymnosperms 14 / 30 Cud-chewing animals are known as cannibals. ruminant sanguivores frugivores 15 / 30 Which of the following is widely used as an anaesthetic? chloroform ammonia methane chlorine 16 / 30 Copper is a dielectric diamagnetic substance ferromagnetic substance paramagnetic substance 17 / 30 Corrosion of a metal occurs at the anode cathode both anode and cathode none of the above 18 / 30 During elections, a permanent chemi- cal mark is put at the base of the nail of the index finger while exercising your franchise. This mark is not seen after 2 months or so because constant contact of the hands with hard water corrodes the mark (c) the formation of new nail forcibly removes the old one it is worn out by constant washing with scap and water it is gradually oxidized by tannin and caffeine that we ingest in tea and cof- fee respectively 19 / 30 Cholesterol is a chromium salt type of chlorophyll fatty alcohol found in animal fats derivative of chloroform 20 / 30 A camel adapts easily in a desert due to RBC's are nucleated pads beneath two digits and hair growth near eyes and nostrils RBC's are nucleated hump with stored food as fats water cells in stomach to store meta bolic water 21 / 30 Core of transformer is made up of iron steel soft iron alnico 22 / 30 Deforestation has caused intensified soil erosion all the above loss of precious wildlife floods and drought 23 / 30 Denaturation of a protein is caused by high salt concentration heat acid all of the above 24 / 30 Dialysis is used for the treatment of kidney failure heart weakness brain disease none of these 25 / 30 Ductless glands are known as endocrine glands tubular glands alveolar glands exocrine glands 26 / 30 Conversion of a substance directly from solid to vapour state is known as decomposition vaporization ionization sublimation 27 / 30 Cloudy nights are warmer because of the compact density of air of low atmospheric pressure more dust particles gather in the air clouds prevent radiation of heat from the ground into the air 28 / 30 Clouds float in the atmosphere because of their low density pressure temperature speed 29 / 30 Choose the only vector quantity from the following: length torque energy density 30 / 30 Cooking oil can be converted into vegetable ghee by the process of hydrogenation distillation crystallization oxidation Your score is 0% Send feedback 123456789101112131415161718192021222324252627282930 Gen Science Quiz 4 Questions 30 1 / 30 Cathode rays were discovered by Rutherford J. J. Thomson Dirac Lord Kelvin 2 / 30 Food is normally digested in the liver small intestines large intestines stomach 3 / 30 Carcinogenic chemicals are those that can cause cancer carbon none of these allergy 4 / 30 An element with atomic number 36 belongs to the f-block p-block s-block d-block 5 / 30 An object moving around in a circle is moving with a uniform velocity variable velocity` variable speed uniform speed 6 / 30 At high altitudes it is difficult to cook eggs or vegetables properly because of low boiling point of water and low atmospheric pressure low value of acceleration due to gravity high boiling point of water and low atmospheric pressure high atmospheric pressure and low boiling point of water 7 / 30 Fungi are always autotrophic parasitic Saprophytic heterotrophic 8 / 30 appears to be the brightest at night? Mars Jupiter Mercury Venus 9 / 30 Atmospheric pressure is measured by using an instrument called a/an manometer altimeter hydrometer 10 / 30 Fruiting body of mushrooms is present in Like dicotyledon seed Fungi Like monocotyledon seeds Algae 11 / 30 Enzymes help in respiration reproduction respiration digestion of food immune system 12 / 30 An element that can form a pentoxide is aluminium phosphorus nitrogen boron 13 / 30 During the day time plants take in carbon dioxide and give out oxygen take in nitrogen and give out oxygen take in oxygen and give out carbon dioxide take in nitrogen and give out oxygen 14 / 30 As the train starts moving, a man sitting inside leans backwards because of conservation of mass moment of inertia inertia of rest inertia of motion 15 / 30 Aluminium is extracted from bauxite by reduction with Mg by reduction with carbon by electrolysis in molten cryolite by reduction with CO 16 / 30 ECG is used for the diagnosis of ailments of the brain kidneys heart lungs 17 / 30 An iron hammer lying in the sun appears much hotter than its wooden handle because iron is darker than wood iron absorbs more heat iron is at a higher temperature iron is a good conductor of heat 18 / 30 From which part of the plant is turmeric obtained? root fruit stem seed 19 / 30 Atomic number of an element gives the weight of the atom of the element the total number of elementary particles in its atom the number of protons in its atom the number of protons in its atom 20 / 30 What happens during seed germination? starch is synthesized heat is liberated starch is synthesized light is absorbed 21 / 30 An element found in all organic com- pounds is carbon nitrogen None Of the these calcium 22 / 30 Chemically, an enzyme is a Vitamin carbohydrate lipid protein 23 / 30 Amino acids are the building blocks lipids vitamins proteins starch 24 / 30 Fertilization in frogs is both external and internal both external and internal external internal 25 / 30 Blue of the sky is due to the interference of white light scattering of white light by molecules of air reflection of white light by the earth refraction of white light by the atmo- sphere 26 / 30 An ice block contains a glass ball when the ice melts within the water containing vessel, the level of water falls first rises and then falls rises unchanged 27 / 30 Chlorine is not used in the preparation of hydrochloric acid phosgene phosphine bleaching powder 28 / 30 Edible part of cauliflower is mesocarp, endocarp endocarp and mesocarp mesocarp and pericarp style and stigma 29 / 30 Carbon occurs in nature in the purest form as carbon black diamond graphite coal 30 / 30 By what process is heat transmitted from the filament of an evacuated electric bulb to the glass? convection conduction heat cannot be transmitted through a vacuum radiation Your score is 0% Send feedback
