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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 9651. |
Give any two examples of artificial ecosystems |
| Answer» Artificial Ecosystem: these are the ecosystems which are created and maintained by man, by addition of energy and planned manipulation with natural balance.for e.gCorp lands such as sugar cane, maize, wheat, rice fields, orchards, gardens aquariums, greenhouses etc. | |
| 9652. |
Which type of reaction is digestion of food |
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Answer» Decomposition reactionOn digestion of food the body faces a decomposition reaction, i.e. decomposition of food in our body.Decomposition is nothing but a chemical reaction and breaking down of food into digestible nutrients such as Carbohydrates, proteins, fats which our body required for proper functioning. Decomposition Reaction |
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| 9653. |
Generally gas is form molecules |
| Answer» Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide). | |
| 9654. |
Class 10chapter 1phyisics |
| Answer» Study electricity | |
| 9655. |
Breathing rate in humans is controlled by? |
| Answer» Respiratory control centers: The medulla which sends signals to the muscles involved in breathing, and the pons which controls the rate of breathing. | |
| 9656. |
Wht is acid |
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Answer» Substance that contain hydrogen and neutralize alkalies and has a sour taste are called acid. These are sour in taste and change the colour of blue Litmus to red An acid is any hydrogen-containing substance that is capable of donating a proton (hydrogen ion) to another substance.\xa0Acidic substances are usually identified by their sour taste. An acid is basically a molecule which can donate an H+ ion and can remain energetically favourable after a loss of H+. Acids are known to turn blue litmus red. Which are highly concertric minerals are called acid |
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| 9657. |
Name the cell organelle in which photosynthesis occur? |
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Answer» Chloroplast posses membranous structures called "Thylakoids membrane" inside it.Photosynthesis takes place in it because they possess the pigment called "chlorophyll" which traps the light energy and helps in its conversion to other food materials. Chlorophyll |
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| 9658. |
What is the blood group of mosquito? |
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Answer» Why Book group of mosquito is O |
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| 9659. |
A fuse wire has_____restance and_____melting point |
| Answer» A fuse wire has high resistance and low melting | |
| 9660. |
Decomposition reaction define |
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Answer» It is a reaction in which a compound splits into two or more substances is called decomposition reaction. It is a reaction when one compound break to form two or more compound it is decomposition reaction. HOPE IT IS HELPFULL??? A reaction in which one reactant breaks to form two or more products.....HOPE IT WILL HELP U..... |
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| 9661. |
What is parabolic trigetry |
| Answer» Definition of the "Parabolic-Trigonometric-Functions" as the coordinates of the point P ≡ (pc(ϕ) ps(ϕ)) on the\xa0parabola\xa0of equation: y = 1 − x 2 (continuous line) or y = x 2 − 1(dashed line). The angle φ is the circular angle corresponding to the area sector ϕ | |
| 9662. |
Physics 1 chapter notes light reflection and rarefaction |
| Answer» Ys | |
| 9663. |
Which harmone prepares for pregnancy? |
| Answer» Progesterone prepares the wall of the uterus so that the lining is able to accept a fertilized egg and so that the egg can be implanted and develop. | |
| 9664. |
Which ionic from of iron is used to find chemical formula of iron chloride and why |
| Answer» Ferrous\xa0chloride\xa0is prepared by addition of\xa0iron\xa0powder to a solution of hydrochloric acid in methanol. This reaction gives the methanol solvate of the dichloride, which upon heating in a vacuum at about 160 °C converts to anhydrous FeCl2.\xa0The most common\xa0use\xa0of\xa0ferric chloride\xa0is in solution. When dissolved it forms a light brown aqueous solution with a faint hydrochloric acid odor. It is highly corrosive to most metals and probably corrosive to tissue. It is noncombustible and primarily\xa0used in\xa0sewage treatment and water purification. | |
| 9665. |
What is side convention |
| Answer» In physics, a sign convention is a choice of the physical significance of signs (plus or minus) for a set of quantities, in a case where the choice of sign is arbitrary. Sometimes, the term "sign convention" is used more broadly to include factors of i and 2π, rather than just choices of sign. | |
| 9666. |
Name the device which converts solar energy directly to electric enet |
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Answer» Solar Cell Solar cell is a device which directly converts solar energy into electric energy. A solar cell, or photovoltaic cell, is an electrical device that converts the energy of light(sun) directly into electricity by the photovoltaic effect. Solar Panels |
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| 9667. |
C12H26 +H2O -------> CO2 + H2O balance this equation |
| Answer» Question is wrong it should beC12H26 + H2O+ O2------->CO2+H2O | |
| 9668. |
1ky=______v |
| Answer» 1kv = 1000 v | |
| 9669. |
1v=1 c^1 |
| Answer» | |
| 9670. |
if more clotting of blood in human and then |
| Answer» if there is more clotting of blood in humans so trying to stop the blood by cotton and donate blood for making platelets. | |
| 9671. |
What is sphicter muscle? |
| Answer» Sphincter muscle is a muscle which has the capability of contracting and relaxing itself to guard specific openings which communicate different organs in the body.For example, pyloric sphincter is the structure which is situated at the junction of the stomach entering the duodenum. This is structure made up of sphincter muscles which are always closed except during delivery of partially digested food, the chyme into the small intestine.This food can pass only in one way from the stomach to intestine. The reverse flow is prevented by the pyloric sphincter. | |
| 9672. |
What is meant by Life process |
| Answer» The some basic functions which are essentiol for the survival of organisms, these basic functions are know as life process..Example... Nutrition excretion circulation, control and coordination.. | |
| 9673. |
Define the 1 empire and also derive it |
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Answer» Electric current through a conductor is said to be 1 ampereIf 1 coulomb charge flows through any cross- section of the conductor in 1second is said to be 1 ampere When 1 coulomb of charge is flow through a circuit in one second then it is said to be 1 ampere of current flowingh through it.DerivationLet q=1c T=1s Hence we know rate of flow of charge is known as current Then , I=q/t I=1c/1s i.e 1c/s is called 1 amp . An ampere is a unit of measure of the rate of electron flow or current in an electrical conductor. One ampere of current represents one coulomb of electrical charge (6.24 x 1018 charge carriers) moving past a specific point in one second. ... The ampere is named after Andre Marie Ampere, French physicist (1775-1836). |
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| 9674. |
Colombo is represented by |
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Answer» Coulomb is represented by capital " C " C Not colombo !!!!! Coulomb is represented by \'c\'. |
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| 9675. |
osmoregulation |
| Answer» the maintenance of constant osmotic pressure in the fluids of an organism by the control of water and salt concentrations. | |
| 9676. |
Explain why is hydrochloric acid a strong acid and acetic acid a weak acid .HOw can it be verified |
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Answer» Hydrochloric acid is strong acid because the number of hydrogen [H+] ion is more and the value pH is low.Whil acetic acid is weak acid because the number hydrogen [H+] ion is less and the value of pH is high.ph decreases and [H+] ions increases in acidic solution Thus, HCL is considered to a strong acid as it high no. Of hydrogen ions whereas acetic acid contains v |
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| 9677. |
State the type of chemical reactions and chemical equation take place in the following |
| Answer» | |
| 9678. |
What is the final product of photosynthesis? |
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Answer» Glucose, oxygen and water Glucose and oxygen Glucose, oxygen and water.... The final product of photosynthesis in plant is glucose and water. |
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| 9679. |
Which lesson is very important in sci in 2020 |
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Answer» First chapter of biology and first chapter of chemistry Reproduction m *** porn All the lessons. Maybe the CBSE will reduce the syllabus but in biology life processes is the most important. All lesson very important |
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| 9680. |
which fluid in human makes internal organ wet |
| Answer» Cerebrospinal fluid and mucus are two fluids in human makes internal organs wet | |
| 9681. |
How to make adapter?? |
| Answer» Go to youtube it explain brifly | |
| 9682. |
Which substance shown aluminum cloride but not sodium cloride |
| Answer» | |
| 9683. |
What do you mean by pulse |
| Answer» The expansion of an artery each time the blood is forced into it is called an pulse | |
| 9684. |
What are strong acids and strong bases? And give me your mobile number who answered to me. |
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Answer» Acids which have H+ ions are called as strong acids.strong bases are those bases which have more OH- ions . Acids which have more H+ ions is a strong acid and base which have more OH- ions are strong base. My phone number 79767***** |
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| 9685. |
Is 2mg can be written by mg2 |
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Answer» No we cant write No No my dear Not at all No |
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| 9686. |
Notes of ch 12 |
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Answer» Find it on YouTubeTheir you can understand well Science. |
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| 9687. |
Why do Hcl,hno3,etc show aci |
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Answer» Because they produce H+ /hydronium ions Because they have hydrogen ions in them. |
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| 9688. |
Orested experiment |
| Answer» It proved relationship between electric current and magnetism . | |
| 9689. |
What is the unit of momentum |
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Answer» Kg. m/s Kilogram meter per second. What is social or soclism Kg.m/s |
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| 9690. |
Scientific name of human? |
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Answer» Homi sapiens MS Dhoni Homosapiens Scientific name of human beings is homo sapiens. Homo sapiens |
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| 9691. |
The shape of collecting duct |
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Answer» Thankyu mam C |
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| 9692. |
List the three events which occur during photosynthesis |
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Answer» The tree events during photosynthesis is 1.light enters plant body through stomata2.formation of glucose3.formation of ATP(adenosine triphosphate) Three events occur during photosynthesis are 1. Light enters plant body through stomata .2. Break down of water molecule inleaves.3. Formation of glucose |
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| 9693. |
Chemical nd reaction |
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Answer» The process in which chemical substances transform into new substance with new property are called chemical reaction. Chemical reaction is a type of reaction in which chemical properties change of a substance and new substances are formed. |
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| 9694. |
Write chemical properties of HCL |
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Answer» Properties of Hydrogen Chloride\tHCl is an uncoloured gas and has a pungent aroma.\tHydrochloric acid is the aqueous solution of hydrogen chloride.\tHCl is soluble in water.\tIt liquefies at 189K to form a colourless liquid and freezes at 159k to form a white solid. It\'s work is to kill or destroy the unnecessary or unwanted things which enters in our stomach with food. |
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| 9695. |
Name any two resistors |
| Answer» Toaster and hair dryer | |
| 9696. |
Explain in breif \'electric switch\' with diagram |
| Answer» An\xa0electric switch\xa0is a device that interrupts the electron flow in a circuit.\xa0Switches\xa0are primarily binary devices: either fully on or off and light\xa0switches\xa0have a simple design. When the\xa0switch\xa0is turned off, the circuit breaks and the power flow is interrupted. Circuits consist of a source of power and load.\xa0The power supply to a circuit is switched by the SPST\xa0switch. From the typical light\xa0switch diagram, it controls one wire (pole) and it makes one connection (throw). This is an on/off\xa0switch\xa0when the\xa0switch\xa0is closed or on then current flows through the terminals and the bulb in the circuit will glow. | |
| 9697. |
What are the functions of mucus? |
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Answer» Mucus protects the inner walls of the stomach. It helps to protect the cells of stomach from the action of HCl and pepsin. It is secreted by goblet cells. |
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| 9698. |
Why is it always essential to balance a chemical equation? |
| Answer» The chemical equation needs to be balanced so that it follows the law of conservation of mass. A balanced chemical equation occurs when the number of the different atoms of elements in the reactants side is equal to that of the products side. Balancing chemical equations is a process of trial and error. | |
| 9699. |
What is a reduction |
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Answer» The gainof hydrogen and loss of oxygen The gain of hydrogen and loss of oxygen termed as reduction. |
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| 9700. |
I need corona virus structure ? |
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Answer» Nothing Clinical PresentationCoronaviruses cause acute, mild upper respiratory infection (common cold).StructureSpherical or pleomorphic enveloped particles containing single-stranded (positive-sense) RNA associated with a nucleoprotein within a capsid comprised of matrix protein. The envelope bears club-shaped glycoprotein projections.ClassificationCoronaviruses (and toroviruses) are classified together on the basis of the crown or halo-like appearance of the envelope glycoproteins, and on characteristic features of chemistry and replication. Most human coronaviruses fall into one of two serotypes: OC43-like and 229E-like.MultiplicationThe virus enters the host cell, and the uncoated genome is transcribed and translated. The mRNAs form a unique “nested set” sharing a common 3′ end. New virions form by budding from host cell membranes.PathogenesisTransmission is usually via airborne droplets to the nasal mucosa. Virus replicates locally in cells of the ciliated epithelium, causing cell damage and inflammation.Host DefensesThe appearance of antibody in serum and nasal secretions is followed by resolution of the infection. Immunity wanes within a year or two.EpidemiologyIncidence peaks in the winter, taking the form of local epidemics lasting a few weeks or months. The same serotype may return to an area after several years.DiagnosisColds caused by coronaviruses cannot be distinguished clinically from other colds in any one individual. Laboratory diagnosis may be made on the basis of antibody titers in paired sera. The virus is difficult to isolate. Nucleic acid hybridization tests (including PCR) are now being introduced.ControlTreatment of common colds is symptomatic; no vaccines or specific drugs are available. Hygiene measures reduce the rate of transmission. The coronavirus spike protein is a multifunctional molecular machine that mediates coronavirus entry into host cells. It first binds to a receptor on the host cell surface through its S1 subunit and then fuses viral and host membranes through its S2 subunit. Two domains in S1 from different coronaviruses recognize a variety of host receptors, leading to viral attachment. The spike protein exists in two structurally distinct conformations, prefusion and postfusion. The transition from prefusion to postfusion conformation of the spike protein must be triggered, leading to membrane fusion. This article reviews current knowledge about the structures and functions of coronavirus spike proteins, illustrating how the two S1 domains recognize different receptors and how the spike proteins are regulated to undergo conformational transitions. I further discuss the evolution of these two critical functions of coronavirus spike proteins, receptor recognition and membrane fusion, in the context of the corresponding functions from other viruses and host cells. |
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