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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.
| 43701. |
What is the role of HCl in digestive system |
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Answer» Hcl kills the pathogens present in the food.Hcl converted the inactive pepisogen into active pepsin and also convert inactive prorenin into active renin. Hcl makes the ph of food from alkaline to acidic It helps in digestion What is the role of HCI indigestive system ? |
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| 43702. |
Please Define And Explain What isCharg |
| Answer» Charge is defined as the flow of free electrons ... It is generally denoted by Q ... The charge mainly balanced between the number of electons and neutrons in an atom.... An electron carries negative charge while proton has a positive charge...However if the electrons are greater in quantity than protons in nucleus the charge on the atom is negative and greater number of protons leads to positive charge an atom ... The amount of the charge carried by an atom is multiple of elementary charge charge has the unit of coulomb denoted by C....... | |
| 43703. |
Which question bank is best |
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Answer» Thanks Arihant Super 20 ya oswal |
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| 43704. |
Explain root pressure theory or transpirational theory |
| Answer» Root pressure.is cause upward movement of water that is sap through xylemThe water due to cohesive and adhesive force reach in leaves cells from root is known as tranpirational pull theory | |
| 43705. |
Which is the best help book for cbse board exam |
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Answer» WelllThanks I think so question bank is the right one for board exam |
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| 43706. |
Characteristics features of CO2 ,SO2,O2,H2 |
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| 43707. |
Explain the structure of stomata |
| Answer» \tStomata are present in leaf epidermis.\tThey regulate the process of transpiration and gaseous exchange.\tThey are enclosed by two bean-shaped guard cells.\tThe guard cells control the opening and closing of stomata. | |
| 43708. |
Give nutrition in paramoecium |
| Answer» \tParamoecium is a unicellular aquatic organism.\tThe paramoecium has thin, hair like cilia all over its body.\tThe cilia move back and forth rapidly in water.\tWhen the cilia is present around, the mouth region of paramoecium move, back and forth. They sweep the food particles present in water into the mouth of paramoecium.\tThis is the first step in the nutrition of paramoecium which is called ingestion and is followed by digestion, absorption, assimilation and egestion. | |
| 43709. |
What is meant by quantisation of charge |
| Answer» The quantization of electric charge means that the total charge of the body is always an integral multiple of a basic quantum of charge (e) i.eq = ne where, n = 0, ±1, ±2, ±3, .....The basic cause of quantization of electric charge is that during rubbing only an integral number of electrons can be transferred from one body to another. | |
| 43710. |
Definition of corrosion? |
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Answer» When a metal is attacked by substaces around it such as moisture,acids etc,it is said to be corrode and this process is known as corrosion.For example:- Iron article corroded quickly while getting exposed to moist air for long period of time. The eating away of metal surface layer by layer due to its reaction with harmful atmospheric gases is called corrosion.for eg metal- iron(fe) corroded metal fe2xo3(rust) corroded colour- brown. |
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| 43711. |
Why exercise is not there |
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| 43712. |
Application of fuse |
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| 43713. |
Why flow of energy in trophic level cannot be reversed back? |
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| 43714. |
Difference between producers and consumers |
| Answer» -\xa0Producers\xa0are organisms that make their own food. - They are autotrophs. - They can convert inorganic substances into organic substances.-\xa0Consumers\xa0are organisms that need to eat other organisms to obtain energy. | |
| 43715. |
Sphincter tissue |
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| 43716. |
How ro balance chemical equations |
| Answer» You need to see the no of atoms and increase the no of atoms according ly and put the no increase in front of the compound | |
| 43717. |
Why diffusion is not able to perform in human being |
| Answer» Kyunki humans ka jo body hai uska surface area large hai jo diffusion se fulfill nhi ho pata isliye ....,. | |
| 43718. |
Balance equationPb(NO3)2+Fe2(SO4)3-----------Fe(NO3)3+PbSO4 |
| Answer» 3Pb(NO3)2 +Fe2(SO4)--------- 2Fe(NO3)3 + 3PbSO4 | |
| 43719. |
Forests are called biodiversity hotspots .justify |
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Answer» "Forests are \'biodiversity hot spots\'. The statement is completely justified because forest consists of different lifeforms such as bacteria, fungi, plants etc, and can be termed as biodiversity hot-spot as biodiversity of a particular area is defined by no. of species found in the place. Because it is the habitat of large number of different types of species |
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| 43720. |
Explain the functioning of sunlight during photosynthesis? |
| Answer» During photosynthesis the sunlight converts to chemical energy which is necessary for reduction of Co2 into carbohydrates and breakdown of H2O into H2 and O2 | |
| 43721. |
Why do we need electricity |
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Answer» Electricity is the source of energy and for this our life is became more easier. We need electricity because it is an important source of energy in the modern time.and it helps us to make our life easy.HOPE ITS HELP |
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| 43722. |
State an important use of decomposition reactions. |
| Answer» These reactions r used to extract metals from their naturally occurring oxides or chlorides. | |
| 43723. |
What is the definition of endoparasites and ectoparasites |
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Answer» Ectoparasite are exeternal parasite. They either live on the host body or attach temporarly to suck the blood. like, lice bedbud. Endoparasite are internal parasite that is they live inside the host body and derive their food from them .like, bacteria. I hope its help u to make understand more The parasite that lives on the body of the living organism like lice r ecto parasites.The parasite that lives inside the organism\'s body like roundworm is an endo parasite. |
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| 43724. |
What is the definition of chemoautotrophic |
| Answer» Some non green autotrophs like iron and sulphur bacteria use chemical energy for the synthesis of food . | |
| 43725. |
What is the definition of photoautotrophic |
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| 43726. |
Can photosynthesis occur by artificial light |
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Answer» Thanks yes |
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| 43727. |
2examples of isomass and isotopes |
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Answer» Isomass hain kya??? Main ye nam pehli baar suna Isobars hai ya isomass |
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| 43728. |
Can\'t we can get mind map of chemival reaction and eqation |
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| 43729. |
Nutriliasation reaction |
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Answer» Eg. NAOH +HCL gives NACL +H2O Reaction of an acid with Base to give salt nd water... |
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| 43730. |
Explain the process of nutrition in paramecium... |
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| 43731. |
Why are electric wires and cooking vessels are made up of metals |
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| 43732. |
what is the good source of energy? |
| Answer» Economixally feasible , sudficient amount of heat, less pollution, easy to transport , easy to store | |
| 43733. |
Why does one element displaces other |
| Answer» Any element only displaces another element as it is more reactive than the another one. | |
| 43734. |
CaO+CO^2=CaCO^3 |
| Answer» Calcium carbonate | |
| 43735. |
In cockroaches air enters the body through. |
| Answer» Spriracles and trachea | |
| 43736. |
Working of thermal power plant |
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| 43737. |
Can a double displacement reaction be a redox reaction? |
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Answer» No. In double displacement reactions only a displacement takes place. In redox reactions the oxidation number of atoms change during the reactions. Yes, a simple displacement reaction is also a redox reaction, as it is always accompanied by oxidation-reduction. |
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| 43738. |
what is electronic configuration of first thirty elements |
| Answer» 2\'8\'18 | |
| 43739. |
Difference between tripsin and pepsin? |
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Answer» \tPepsinTrypsinIt is secreted in the stomach.It is secreted in the small intestine.It is situated in gastric glands.It is situated in pancreas.It acts only in acidic medium.It acts in an alkaline medium.It hydrolyses proteins into proteoses and peptones.Along with chymotrypsin and carboxypeptidase, it acts on partially digested proteins in the stomach and converts them into dipeptides\t 1.trypsin is released by pancreas 1. Pepsin is released by stomach Tripsin acts in alkaline medium. Pepsin axts in acidified medium |
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| 43740. |
How is food transported in the plants?\xa0 |
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Answer» The prepared food is transported in the plants through phloem to the storage organs of roots, fruits, seeds and growing parts. This process is called translocation. This function is done by sieve tubes and companion cells. The movement of food particles takes place upward and downward. Mechanism of translocation is an active process that utilizes energy. Materials are transferred from leaf cells or from the site of storage into phloem tissue. For this energy is required which is provided by the ATP molecules. This energy increases the osmotic pressure, as a result, water from outside moves into the phloem. This pressure maintains the movement of food through all the parts of plants. By the plant tissue called phloem |
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| 43741. |
Why the colour of copper sulphate change when we put iron in it. |
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Answer» Iron is more reactive than copper. So, when an iron nail is dipped in a copper sulphate solution, iron displaces copper from its solution to form iron sulphate, which is green in color.Fe (s) + CuSO4 (aq) → FeSO4 (aq) + Cu (s) Hence, the blue color of copper sulphate solution changes into green color because of this displacement reaction.\xa0 Because iron is more reactive than copper. Becoz fe displaces cuso4 from its solutio |
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| 43742. |
Why mg powder reacts more rapidly than the mg ribbon with sulphuric acid |
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| 43743. |
How to manage my time ⌚ for science please tell me Any topper around??? |
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| 43744. |
What is permanent forest estate |
| Answer» Reserved and protected forests are also referred to as “Permanent forest estates”.These forest states are maintained for the purpose of producing timber and other forest produce and for protective reasons.State: Madhya Prades has the largest area under these forest estates. | |
| 43745. |
Mention the raw material require for photosynthesis |
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Answer» •Carbon dioxide is obtained from the atmosphere through small openings for stomata in the underside of the leaves.•Roots of the plants absorb water along with minerals from the soil and transport them to the leaves for photosynthesis.•Chlorophyll is a green pigment and is usually present in the leaves in structures called chloroplasts.•Sunlight is the source of energy & chlorophyll traps this energy. CO2 , H2O , chlorophyll , sunlight |
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| 43746. |
What is center of whole universe |
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| 43747. |
Forward reaction |
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| 43748. |
Which science book is main and what things learn in bio in charge 1 |
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| 43749. |
What are the information we get from balanced chemical equation |
| Answer» no of atoms of different elements in the reactants and product and second in balanced equation , it has equal masses of various elements on both the sides | |
| 43750. |
Ok byee guys |
| Answer» | |