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