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