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