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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.
| 8801. |
What are the shapes of human body\'s cells |
| Answer» The shape and size of cells are related to the specific function they perform. Some cells like Amoeba have changing shapes which helps in its locomotion. The shape of the cell may be variable like white blood cells. Fixed shape of cell occurs in most plants and animals. The size of different cells ranges between broad limits. Some plant and animal cells are visible to the naked eye however, some are microscopic. Each living cell has the capacity to perform certain basic functions that are characteristic of all living forms. There is a division of labour in multicellular organisms such as human beings. Different parts of the body perform different functions like the human body has a heart to pump blood and stomach to digest food. Similarly, division of labour is also seen within a single cell. Each cell has got certain specific components within it known as cell organelles which perform a special function such as making new material in the cell, clearing up the waste material from the cell. | |
| 8802. |
When Leeuwenhoek discovered |
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Answer» Leeuwenhoek discovered protozoa.In 1674, with the help of improved microscope, A. Leeuwenhoek discovered the free living cells in pond water for the first time. Protozoa |
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| 8803. |
What is mean by molybdenum |
| Answer» Molybdenum\xa0is an essential trace mineral. It is found in foods such as milk, cheese, cereal grains, legumes, nuts, leafy vegetables, and organ meats.\xa0Molybdenum\xa0is most commonly used for\xa0molybdenum\xa0deficiency. Some electrical filaments are also made from\xa0molybdenum. The metal is\xa0used\xa0to make some missile and aircraft parts and is\xa0used\xa0in the nuclear power industry.\xa0Molybdenum\xa0is also\xa0used as\xa0a catalyst in the refining of petroleum.\xa0Molybdenum\xa0is primarily\xa0used as\xa0an alloying agent in steel. | |
| 8804. |
Covert 293k into Celsius scale |
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Answer» To convert temperature on kelvin to Celsius The given temperature 273 kConvert = 293 - 273 = 20° C To convert temperature on the Kelvin scale to the Celsius scale you have to subtract 273 from the given temperature. So here, 293-273=20 |
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| 8805. |
Cell wall does not permit movement of substance in and out of the cell |
| Answer» Plant cells, in addition to the plasma membrane, have another rigid outer covering called the cell wall. It lies outside the plasma membrane. It is mainly composed of cellulose. Cellulose is a complex substance and provides structural strength to plants. When a living plant cell loses water through osmosis there is shrinkage or contraction of the contents of the cell away from the cell wall. This phenomenon is known as plasmolysis.Functions of cell wall:\xa0i. It permits the plant cell to become turgid.ii. It provides mechanical strength to support the cell.iii. It is freely permeable to water and substances in solution.iv. Cell wall permits the cells of plants, fungi and bacteria to withstand very dilute (hypotonic) external media without bursting.\xa0 | |
| 8806. |
What is Deposition in vidio |
| Answer» Video depositions capture the jury\'s attention by having the witness recount events. The jury is able to see what the witness looks like, their facial expressions, when they pause to think about a question, and more. | |
| 8807. |
How do substance like carbon dioxide and water move in and out of the cell |
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Answer» By the process of endosmosis and exosmosis tell me question first By the help of semi permebal membrane |
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| 8808. |
What is divison of labour in cell? |
| Answer» The cell are of different types. So,they divide their functions.This is called division of labour | |
| 8809. |
What happens to particles when salt dissolves in water |
| Answer» When salt dissolves in water than particles of salt mix up with water and the particles of salt fitted into the spaces between the particles of water . | |
| 8810. |
For any substance why does temperature remain constant during the change ofstate |
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Answer» Because the heat converts into latent heat and latent heat do not increase or decrease temperature Until complete change in change of state the temperature will remain constant eg Temperature will be constant untill the ice is completely transformed into water |
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| 8811. |
Notes of chapter cell is the fundamental unit of life |
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| 8812. |
When s-t graph is parallel to x-axis, the body is_ |
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Answer» When speed is constant Travelling at constant speed i don\'t no |
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| 8813. |
Listen Aam Jahe Munde .parmish verma |
| Answer» Ok | |
| 8814. |
What material had Robert Hooke used to study cell |
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Answer» By his developed brain Robert Hooke examined a cork cell of a palm tree Discovery of Cell:While examining a thin slice of cork, Robert Hooke saw that the cork resembled the structure of a honeycomb consisting of many little compartments. Cork is a substance which comes from the bark of a tree. In the year 1665, Robert Hooke made this chance observation through a self-designed microscope. Robert Hooke called these boxes cells. Cell is a Latin word for ‘a little room’. Thus, cells were first discovered by Robert Hooke in 1665. He observed the cells in a cork slice with the help of a primitive microscope. Leeuwenhoek (1674), with the improved microscope, discovered the free living cells in pond water for the first time. Robert Brown in 1831 discovered the nucleus in the cell. Purkinje in 1839 coined the term ‘protoplasm’ for the fluid substance of the cell. The cell theory was presented by two biologists, Schleiden (1838) and Schwann (1839). This theory states that all the plants and animals are composed of cells and that the cell is the basic unit of life. The cell theory was further expanded by Virchow (1855) by suggesting that all cells arise from pre-existing cells. |
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| 8815. |
Convert 25 degree celcius to Kelvin scale |
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Answer» 293.15k 298k 293.15 kelvin |
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| 8816. |
Demonstrative is a determiners or pronoun? In the grammar. |
| Answer» From mistaken it will gone in the science topic | |
| 8817. |
Why can a sponge be compressed through it is a solid |
| Answer» Sponge is compressible because it is having minute pores in which air is trapped .on presssing the air is expelled. it is still considered as a solid because it has a definite volume and shape does not changes unless compressed. | |
| 8818. |
Whatvis eukroytic cell |
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Answer» Eukaryotic cell are those which contain a nucleus and nuclear membrane and organelles and are enclosed by plasma or cell memberane Eyukaryotic cells are cells that contains a nucleus and organelles and are enclosed by a plasma membrane(also known as cell memebrane) |
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| 8819. |
What is difference between molecules and particles (3point) . |
| Answer» Molecules -1. Molecules refers to combinations for more than 1 atom.2. A molecule is molecular level and have its chemical properties.3. It is at the chemical level that represents chemical properties of that element through out the reaction.Particles -1. Particles are not clear word in their sense. Particles refer to any assumed small thing that exist2. It is not necessary that a particle have its own chemical properties.3. It is not chemical level of organisation. It can be notices with nacked eyes or using simple microscope. | |
| 8820. |
Answer of practice paper of chapter-5 |
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| 8821. |
Lesson 5 |
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| 8822. |
What is the physical state of water at(a) 50°C (b) 75°C (c) -10°C |
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| 8823. |
State the types of motion |
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Answer» Types Of Motion. There are different types of motion: translational, rotational, periodic, and non periodic motion. A type of motion in which all parts of an object move the same distance in a given time is called translational motion. ... Translational motion can be of two types, rectilinear and curvilinear Motion are of two types: uniform motion and non uniform motion According to the nature of the movement, motion is classified into three types as follows:\tLinear Motion: In linear motion, the particles move from one point to another in either a straight line or a curved path.\tRotary Motion: Rotatory motion is the motion that occurs when a body rotates on its own axis. \tOscillatory Motion: Oscillatory motion is the motion of a body about its mean position. |
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| 8824. |
What is meant by reprocess |
| Answer» To deal with waste material | |
| 8825. |
Explain the importance of osmosis for living beings |
| Answer» In living beings the osmosis has the following importance:1. The osmosis aids in transportation of the nutrients from cell to cell and wastes are removed from the cells.2. The osmosis prevents the cell from bursting it creates the turgor pressure inside the cell.3. Through the process of osmosis the roots absorb the moisture and nutrients from the soil.4. It keeps the toxic waste separated from the blood stream.5. The process of blood purification in kidneys is also dependent upon osmosis. | |
| 8826. |
What is different between metal and non metal? |
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Answer» Metals have one to three electrons in their outer shell, whereas non-metals have four to eight electrons. Another difference is that metals tend to lose their valence electrons, but non-metals share or gain valence electrons. ... While metals are good conductors of electricity and heat, non-metals are poor conductors. | Metals | Nonmetals | \tThese are solids at room temperature except mercuryThese exist in all three statesThese are very hard except sodiumThese are soft except diamondThese are malleable and ductileThese are brittle and can be breakdown into piecesThese are shinyThese are non-lustrous except iodineElectropositive in natureElectronegative in natureHave high densitiesHave low densities\t|
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| 8827. |
Differnciate procaryote and eukaryote |
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Answer» Prokaryotic Cell. The distinction between prokaryotes and eukaryotes is considered to be the most important distinction among groups of organisms. Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. Prokaryotes*Cells of organism lacks nuclear membrane.*Nucleolus is absent.*Single chromosomes.*Reproduction is always asexual.*Always unicellular.*Membrane bound cell organelles are absent.*Centriole is absent.*Cell division is by binary fission.*Example: Bacteria, Blue green algae, etc.Eukaryotes*Cells of organism have nuclear membrane.*Nucleolus is present.*Single or multi chromosomes.*Reproduction is both sexual and asexual.*Often multicellular.*Membrane bound organelles are present like mitochondria.*Centriole is present only in animals cell.*Cell division is by mitosis or meiosis.*Example: Fungi, Plant cell, Animal cell etc.Thank you ?? |
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| 8828. |
A snail covers a distance of 100 meters in 50 hours.calculate the average speed of snail in km/h. |
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Answer» 0.002km/ph Dis =100m=0.1kmTime =50hSpeed=dis/time0.1km/50h=0.002km |
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| 8829. |
Why the ice and wood flow on water |
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Answer» Ice and water float on water because they have low surface tension as compared to water.Thank you ???? The mass per unit volume of a substance is called density (density = mass/volume). As the volume of a substance increases, its density decreases.Liquids have lower density than that of solids. Water is also a liquid so it should also have less density than that of solid that is ice.Though ice is a solid, but it has a cage like structure hence there are large number of empty spaces between its particles. These spaces are larger as compared to the spaces present between the particles of water. Thus for a given mass of water, volume of ice is greater than that of water. Hence, the density of ice is less than that of water. A substance with lower density than water can float on water. Therefore, ice floats on water. |
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| 8830. |
Explain the meaning of isotonic,hypotonic,and hypertonic solution |
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| 8831. |
How dynamo becomes the magician? |
| Answer» Frayne moved to London in 2004 to build a career in\xa0magic, and his plan was to create the first ever \'magic\xa0mix-tape\'.\xa0He\xa0set out with a small team to film his performances on the streets of London and backstage at events, after\xa0he\xa0had been permitted entry by impressing doormen and tour managers.\xa0Steven Frayne, who goes by his stage name\xa0Dynamo, is a new shining star in the world of\xa0magic. The English\xa0magician\xa0does all from elegant card tricks to epic stunts like levitation and walking on water. His show\xa0Dynamo:\xa0Magician\xa0Impossible has received many awards and has been highly critically acclaimed. | |
| 8832. |
The fusion is the process in which _____ |
| Answer» Fusion is the process\xa0that powers the sun and the stars. It is the reaction in which two atoms of hydrogen combine together, or fuse, to form an atom of helium. In the\xa0process\xa0some of the mass of the hydrogen is converted into energy. | |
| 8833. |
What is electromegnatic microscope?explain with diagram |
| Answer» An Electromagnetic microscope is a microscope that uses a beam of accelerated electrons as a source of illumination. Electromagnetic microscopes are used to investigate the ultrastructure of the wide range of biological and inorganic specimens including microorganisms cells large molecules etc. | |
| 8834. |
What do you mean by magnitude of displacement . Explain |
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Answer» Magnitude of displacement is technical way of saying distance as measured directly between the starting point and endpoint \tThe magnitude of dispalcement of a particle in motion for a given time is the shortest distance between the initial and final position of the particle in that time.\tThe magnitude is always less than or equal to the distance travelled by an object.That is total path length is greater than the magnitude of displacement.\tIf the motion of the particle is in one dimension i.e., along along a straight line, then the magnitude of displacement is equal to the total path lenght travelled by the object in the given time. |
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| 8835. |
on boiling potato and then put it in the hypotonic solution it does not swell up why give reasons |
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Answer» Because when the cell of potato get boiled,its cells become dead.So the process of osmosis stop in dead cell When a potato is boiled, its cells die and thus do not support osmosis. |
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| 8836. |
What do you mean by friction |
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Answer» Friction is a force that holds back the movement of a sliding object. Friction is the force which help us to move easily because if we apply same amount of force as friction then we move easily |
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| 8837. |
Whar is a solution |
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Answer» Solution is a homogeneous mixture of two or more substances. A Solution is a homogeneous mixture of two or more substances. E.g.,nimboo pani, soda water |
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| 8838. |
what is the golgi apparatus |
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Answer» Xxxx??? Golgi aaperatus has a function of storge modifications and packaging of the material It is found in eukaryotic cell and helps in package of protein into vesicles The golgi apparatus; also knows as the golgi complex: golgi body ; or simply the golgi ; is an organcell found in most eukaryotic cells : part of the endomembrance syestm in the cytoplasm ; it packages proteins into membranes bound vesicles inside the cell before the vesicles are sent to their destinations ? |
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| 8839. |
Matter in our surrounding chapter explanation |
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Answer» ????? Everything is matter Earlier ,it was beleived that the matter was made of panchtatav- water,fire,earth,sky,air All of the things around us which have mass is called matter Anything which occupies space and has mass is called matter |
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| 8840. |
Maximum movement of particles |
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Answer» Maximum movement of particles is in gas because thay have high kinetic energy Maximum partical movement in solid ? Maximum movement of particles are in gases |
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| 8841. |
Osmosis is a special kind of diffusion in short |
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Answer» Mass/volume Diffusion is the process in which molecules of a substance move from the place of their higher concentration to the place of their lower concentration (no membrane is required). But during osmosis, the solvent (water) molecules move from the place of their higher concentration to the place of their lower concentration through a semi-permeable membrane. Thus, osmosis is termed as a special kind of diffusion. |
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| 8842. |
What is membrane bio genetics |
| Answer» Membrane, in biology, the thin layer that forms the outer boundary of a living cell or of an internal cell compartment. The outer boundary is the plasma membrane, and the compartments enclosed by internal membranes are called organelles. Biological membranes are composed of lipids, proteins, and carbohydrates. The carbohydrates of membranes are attached either to lipid forming glycolipids of various classes, or to proteins forming glycoproteins. | |
| 8843. |
Which is the first artificial heart of human |
| Answer» First Artificial Heart Recipient. In 1982, Seattle dentist Barney Clark became the first human to receive a permanent artificial heart, a device known as the Jarvik 7.The first successful heart transplant is performed in Cape Town, South Africa, by Dr. Christiaan Barnard. Dr. Denton Cooley at the Texas Heart Institute becomes the first heart surgeon to implant an artificial heart in a human subject. | |
| 8844. |
Which tissue makes up the husk of coconut??? |
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Answer» Tq soo much ?i just asked u which tissue not so much explaination ...... \tHusk of coconut is made up of sclerenchymatous tissue.\tIt is present in mesocarp of fruit of coconut and a yield a coir a well known fibre used for making mats, ropes, cords, brushes e.t.c.\tSclerenchymatous tissue are found in stems( around the vascular bundle) , roots, vein of leaves, hard coverings of seeds and nuts.\tThe function of sclerenchymatous tissue is mainly mechanical & protective. It gives strength , rigidity ,flexibility and elasticity to the plant body. |
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| 8845. |
What acts as a seat for all the metabolic activities of cell ? |
| Answer» Mitochondria acts as a site for all metabolic activities. | |
| 8846. |
Who discovered cell and which year |
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Answer» Robert hooke in 1665 Robert hooke Robert hooke but i don\'t know the year sry Robert Hooke in year 1665. |
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| 8847. |
A truck travel at the speed of 30km/h for 2 hours calculate the distance travelled by the truck? |
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Answer» Speed= 30km/hTime= 2hSpeed= distanse/timeDistance= speed × time D= 30×2=60 km Speed=30km/hr time=2hrs distance=speed*time=30*2=60km Speed = 30km/ hr , time=2 hrs, distance= speed× time, = 30× 2=60m/ sec Speed = 30km/h Time = 2hrs Distance = speed * time =30*2 =60kmHence, the truck travelled 60km in 2hrs at the speed of 30km/h Speed =30 km/ hr |
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| 8848. |
Can acceleration be negative ? Give reason for your answer. |
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Answer» Retardation Yes When you apply brakes on a car the velocity is in forward direction but acceleration is in backward direction, so acceleration will be negative. It is also called deceleration. Yes!Acceleration means the rate in the change of velocity. So if the speed of the body is slowing down acceleration would be (-)tive |
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| 8849. |
The melting point of ice is 0degree celcius. Explain this in kelvin scale |
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Answer» Melting of ice point is 273 k 273K is the melting point of ice. |
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| 8850. |
Force of attraction is- in solids |
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Answer» Stronger Strongest Stronger |
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