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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.
| 54451. |
What is the structural unit of kidney and why |
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Answer» Nephron Nephros |
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| 54452. |
Difference between combination and decomposition reaction |
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Answer» So in this way it is interelated to each other In combination reaction two or more elements combine to form a new single element /compound and in decomposition reaction a single compound breaks into two or more simpler substances by the help of the heat/electricity /light |
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| 54453. |
State function of liver and pancreas. |
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Answer» pancreas is an elongated yellowish gland line parallel to and being in the stomach. the pancreas is both an endocrine and exocrine. the exocrine region secret sodium bicarbonate and many digestive enzymes. the bicarbonate Ion secreted by pancreatic duct mix the acidic medium alkaline or basic. alkaline medium is favourable for the action of pancreatic enzymes. the pancreatic amylase causes breakdown of starch ,pancreatic lipase breaks down lipids and trypsin causes digestion of protein its salts help in emulsification. emulsification is a process in which the large fat molecules are broken down into small globules of fats so that it could be easily digested bye other organelles bile contains bile pigments and bile salts. The bile contains no enzyme and does has action on food. liver secretes bile juice which is stored in gallbladder. |
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| 54454. |
what are ions? ions attact with metal |
| Answer» Ions are positive and negative | |
| 54455. |
All scence |
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| 54456. |
What are nephrons? Hoe is nephron involved in the filtration of blood and formation of urine ? |
| Answer» The Glomerulus Filters Water and Other Substances from the Bloodstream. Each kidney contains over 1 million tiny structures called nephrons. Each nephron has a glomerulus, the site of blood filtration. ... This glomerular filtration begins the urine formation process.\xa0 | |
| 54457. |
1 ampere = how many Milli ampere |
| Answer» 1000 milliamperes.... | |
| 54458. |
Proper definition of resistivity in short |
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Answer» Its a characteristic of material which resists not on basis of shape or size but on basis of pressure and temperature. The specific resistance which is one meter long and one square meter in area of crossection is called resistivity ....?Dude board me short chalega nhi , so no shortcut .......?? revise full ..... The resistivity of a material is the resistance of a wire of that material of unit length and unit cross-sectional area. The unit for resistivity is the ohm-metre.The resistivity of a material depends on its nature and the temperature of the conductor, but not on its shape and size. |
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| 54459. |
Name the substance that is oxide in the body during respiration? |
| Answer» The substance that is generally oxidized during respiration is the “glucose”. | |
| 54460. |
What is the principle of exchange of gases? |
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Answer» Ch 5 eco make project The principle of gaseous exchange involves the difference in partial pressure of gases and their movement by diffusion. |
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| 54461. |
Why a chemical reaction slow or doea not takes place in solid state |
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| 54462. |
Ray diagram of convex and concave mirror |
| Answer» \t\t | |
| 54463. |
What is geotoporism |
| Answer» Geotropism is\xa0the growth of the parts of plants in response to the force of gravity. The upward growth of plant shoots is an instance of\xa0negative geotropism\xa0; the downward growth of roots is\xa0positive geotropism. | |
| 54464. |
What is spiracle |
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| 54465. |
Drive an expression for the combination of two resistance connected in parallel |
| Answer» Whenever resistance combine in parallel then: R1*R2 _ R1+R2 By this we can find parallel combinations, Just put it | |
| 54466. |
জনন কাকে বলে? |
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| 54467. |
why Nacl is necessary in our body |
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Answer» When in solution NaCl becomes Na+ and Cl-. Both ions help maintain water balanceand blood pH. In addition, Na+ is important to nerve and muscle cell function, by creating an electrical gradient on either side of those cells\' membranes. Or goiter is prevented by iodine To prevent goiter |
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| 54468. |
What is wrong with the following chemical equation MG + O gives mgo |
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Answer» 2Mg +O2=2MgO Because oxygen always combine in bimolecular form to react with any metalSo, correct equation is. 2mg+o2 =2 mgo Because non metal always written in molecular form which is 02 Mg +O2 =2mgo this is balanced chemical equation and before equation is unbalanced chemucal equation. Mg = magnesiumO=oxygen Mgo = magnesium oxideWe put 2 to get balanced. Mg +o2 gives 2mgo |
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| 54469. |
What is the difference between autotrophic and heterotrophic |
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Answer» Autotropic = the mode of nutrition in which living organism produce their own food is called autotropic Example = all green plantHeterotrophic = the mode pf nutrition in which living organism are dependent on other for their food is called heterotrophic nutrition Example = all non-green plant and animals hetrotrophic organisms are those organisms which cannot make their own and depend on other organisms by directly or indirectly for food autotrophic organisms make their own food from inorganic substances such as carbondioxide,water etc |
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| 54470. |
What is the function of brush in an electric motor |
| Answer» In generators the function of brushes is to make contact with the rotating rings and through them to supply current to the coil. In electric motor the brushes are called commutators and the function of commutator\xa0in an electric motor is to reverse the direction of current through the coil periodically.\xa0 | |
| 54471. |
Some numericals based on paralle and series combination |
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| 54472. |
What are olfactory indicators? |
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Answer» Substances whose odour changes in acidic or basic media are called olfactory indicators. Indicators that give different smell on reaction with acid and base is called olfactory indicators. |
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| 54473. |
Discuss electrolysis of nacl so that hydrogens gas released at cathode with the help of an activity |
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| 54474. |
Which main process is used for transportation in smaller plants?why? |
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| 54475. |
Why do plants have a low transportation system? |
| Answer» Plants do not move and have a large proportion of dead cells in many tissues. Therefore, their energy needs are low and hence they can afford to have a slow transport system as compared to animals. | |
| 54476. |
What are blood capillaries ? Explain their function. |
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Answer» Capillaries are the smallest and thinnest blood vessels having one-cell thick wall. They are meant to exchange materials between the blood and surrounding body tissues and fluid.\xa0 Blood capillaries are very fine blood vessels which penetrate into the tissues and supply them with blood. They have very small diameter and have very thin walls through which material can easily move. Their main function is to supply the tissues with nutrients, oxygen, hormones, etc and to take up the wastes from them. |
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| 54477. |
Explain the importance of platelet cells. |
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Answer» Blood clotting \tWhen blood vessels are cut or damaged, the loss of blood from the system must be stopped before shock and possible death occur. This is accomplished by solidification of the blood, called as coagulation or clotting. The smallest cells in the blood are platelets which are designed for this particular purpose.\tAs soon as an artery or vein is injured, the platelets in the injured area begin to clump together and stick to the edges of the cut. They also release messengers into the blood which perform a variety of functions like constricting the blood vessels to reduce bleeding, attracting more platelets to the area to enlarge the platelet plug and initiating the activation of plasma based on clotting factors such as fibrinogen.\tThe plasma protein fibrinogen is transformed into long, sticky thread of fibrin. Blood clotting takes place when the platelets, RBC and WBC are trapped in these fibres |
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| 54478. |
Explain the functions of circulatory system.. |
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| 54479. |
chemical charges |
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| 54480. |
How to determine the state of matter between solid and aqueous ? |
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| 54481. |
A copper wire is stretch to make it 0.2% by its Length .what is % change in its resistance.... |
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| 54482. |
According to aufbau principle why dont chromium and copper follow it. |
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Answer» Thanks to you. You know what does 3d subshell dont contain 4 electrons.In actual configuration of Cr(chromium) 3d subshell is containing 5 electron Some elements do not follow the Aufbau principle, there are some alternate ways that electrons can arrange themselves that give these elements better stability.Explanation:Using the Aufbau principle, you would write the following electron configurationsCr = [Ar] |
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| 54483. |
What is the Best job in science field. |
| Answer» All jobs are best...nothing is small or big..bt everything depends on yur interest...your passion decides what you actually want to do in future..!! Hope it helps you??? | |
| 54484. |
Sir i want some solution related to my exam in the chapter 1 of sci |
| Answer» What types of problem did youhave face in 1 chapter | |
| 54485. |
Test for hydrogen gas ...? |
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Answer» Ab to cornetto chila do Bring a candle to the mouth of the test tube. If the candle burns with a pop sound then we can say that hydrogen gas is present. ??? |
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| 54486. |
Some information about the preservatives from chemistry |
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| 54487. |
Explanation of working of phloem. |
| Answer» There is only one work of phloem which is to transport food and energy from leaves to to other parts of plants. ...........???? | |
| 54488. |
What is tissue????? |
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Answer» ???? A clust er or group of cells is called tissue ....? A group of cells that are similar in structure and work together to achieve a particular function is called tissue. group of cells together forms a tissue to perform a specific function. |
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| 54489. |
Explain quantum theory!!!!!!?? |
| Answer» The theory which is prepared by the combination of both nature of light wave nature and particle nature of light is called quantum theory. | |
| 54490. |
How do we see white colour as it is not present in the electromagnetic spectrum |
| Answer» Electromagnetic spectrum consist of 7 basic colour.We can see a particular colour due to high intensity(or reflection) of that colour on that surface but if intensity of every colour reflected from that surface is same we see white colour | |
| 54491. |
What happen an acid reacts with a metal hydrogencarbonate |
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Answer» Acid react with hydrogen corbonate to form salt ,corbon dioxide and water In this reaction metal salt, carbon dioxide and water are produce Acid reacts to form a salt and carbon dioxide gas is evolved along with water. |
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| 54492. |
Find the equivalent resistence across two ends a and b |
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| 54493. |
Milk converts into curd why??? |
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Answer» Due to fermentation of lactose sugar present in milk by bacteria lactobacillus Due to the action of bacteria lactobacillus |
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| 54494. |
What is freefall |
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Answer» \tDue to gravitational force Earth attracts every object towards it.\tSo whenever an object falls towards earth it falls under the influence of gravitational force and if only gravitational force acts on the object during its free fall then such a motion of object is said to be free fall motionThe falling of a body (or object) from a height towards the earth under the gravitational force of earth (with on other force acting on it) is called free fall When reactionary force is zero |
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| 54495. |
What is the focal length of concave mirrror and convex lens |
| Answer» Following are the ways to obtain the focal length of the concave mirror:\tA concave mirror is defined as the spherical mirror whose reflecting surface is curved inwards and follows laws of reflection of light.\tThe light rays coming from a distant object can be considered to be parallel to each other.\tIf the image formed is real, inverted and very small in size, then the parallel rays of light meet the point in the front of the mirror.\tThe image formed by the convex lens is real and can be obtained on the screen.\tf is used to denote the difference between the principal axis P and the focus F of the concave mirror.Following are the ways to obtain the focal length of convex lens:\tThe convex lens is thicker in the middle and thinner at the edges and is also known as the converging lens.\tThe refracted rays from the parallel beam of light converge on the other side of the convex lens.\tIf the image is obtained at the focus of the lens, the image would be real, inverted and very small.\tf is the focal length which is the difference between the optical centre of the lens and the principal focus.\tThe image can be obtained on the screen as the image formed by the lens is real.\xa0 | |
| 54496. |
Give reason Arteries are thick wall |
| Answer» Arteries carry oxygenated blood from the heart to the different body parts. Blood emerges from the heart under high pressure. In order to withstand this pressure, arteries have thick walls. | |
| 54497. |
What is the normal range of blood pressure of an adult |
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Answer» More than 120 over 80 and less than 140 over 90 (120/80-140/90) This is what you have seen from net but thanks not to answer me but to give confirmation |
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| 54498. |
What are the characteristics of blood? |
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Answer» Blood is a fluid like substance.it is a connective tissue. It transports water, minerals, oxygen,waste products from one part to other in our body. It is red in Colour due to the presence of haemoglobin containing red blood cells in it \tBlood is a liquid consisting of plasma which circulates throughout our body and is red in colour.\tBlood is coloured red because of its components, specifically, a protein in our blood.\tIt is connective tissue and makes up for 8% of our body weight.\tAn average adult possesses around 5-6 litres of blood. |
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| 54499. |
What are phytohormones give their function name a few example of plant hormone |
| Answer» Plant hormones are called as phytohormones. These are the organic substances which are produced in the plants .They bring about total control over growth and other physiological functions in the organism. These hormones are otherwise called as growth regulators. Different growth regulators present in the plant are Auxins, Gibberillins, Cytokinins, Ethylene and Abscisic acid. | |
| 54500. |
Why are endocrine gland also referred as ductless gland |
| Answer» Endocrine glands are called ductless glands because they secrets hormone directly into the blood , there is no need of any duct for there secretion.two examples of ductless glands are:i) pituitary glandii) thyroid glandiii) adrenal gland | |