InterviewSolution
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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.
| 6951. |
20 things are made from chemistry |
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| 6952. |
M.C.Q |
| Answer» Multipal choise question | |
| 6953. |
Under what conditions is the magnitude of average velocity of an object equal its average speed? |
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Answer» In equal interval of time (in addition) When it goes in uni direction |
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| 6954. |
Functions of all the cell organelles. |
| Answer» Functions of the cytoplasm\tThe cytoplasm provides mechanical support to the cell by exerting pressure against the cell\'s membrane which helps keep the shape of the cell. This pressure is known as turgor pressure.\tIt is the site of most cellular activities including metabolism, cell division and protein synthesis.\tThe cytoplasm contains ribosomes which assist in the synthesis of protein.\tThe cytoplasm acts a storage area for small carbohydrate, lipid and protein molecules.\tThe cytoplasm suspends and can transport organelles around the cell.Functions of the nucleus\tThe main function of the cell nucleus is to control gene expression and facilitate the replication of DNA during the cell cycle (which you will learn about in the next chapter).\tThe nucleus controls the metabolic functions of the cell by producing mRNA which encodes for enzymes e.g. insulin.\tThe nucleus controls the structure of the cell by transcribing DNA which encodes for structural proteins such as actin and keratin.\tThe nucleus is the site of ribosomal RNA (rRNA) synthesis, which is important for the construction of ribosomes. Ribosomes are the site of protein translation (synthesis of proteins from amino acids).\tCharacteristics are transmitted from parent to offspring through genetic material contained in the nucleus.Functions of the Golgi bodyIt is important for proteins to be transported from where they are synthesised to where they are required in the cell. The organelle responsible for this is the Golgi Body. The Golgi body is the sorting organelle of the cell.Functions of the vacuole\t\tThe vacuole plays an important role in digestion and excretion of cellular waste and storage of water and organic and inorganic substances.\t\t\tThe vacuole takes in and releases water by osmosis in response to changes in the cytoplasm, as well as in the environment around the cell.\t\t\tThe vacuole is also responsible for maintaining the shape of plant cells. When the cell is full of water, the vacuole exerts pressure outwards, pushing the cell membrane against the cell wall. This pressure is called turgor pressure.\t\t\tIf there is not sufficient water, pressure exerted by the vacuole is reduced and the cells become flaccid causing the plant to wilt\t\xa0 | |
| 6955. |
Define a diffusion? |
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Answer» Diffusion is the process in which the molecules of a matter get uniformly mixed with another matter The process of intermixing of two different typees of matter on their ownn. Diffusion is the process in which molecules like gases move from the region of its high concentration to the region of its low concentration The movement of gases (like carbon dioxide and oxygen) from a region of high concentration to a region of low concentration through a semi permeable membrane is known as diffusion. Thus, diffusion plays an important role in gaseous exchange between the cells as well as the cell and its external environment. The spreading and intermixing of particles of matter due to its motion is called diffusion |
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| 6956. |
What is the mitochondrion |
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Answer» Ribosomes make in proteins of Mitochondria.... Mitochondria is the ATP synthesis this is power house of the cells It is the power house of the cell |
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| 6957. |
Water has no any type of colour.am i rightBut Why color of ice is white .Why sea is colour in blue |
| Answer» The color of water in sea is appeared to be blue because the water level is higher in the seas they are very deep so the shadow makes it dark and appears to be blue and some seas have different color it varies by the mineral composition. | |
| 6958. |
what is the difference state of matter |
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Answer» There are three states of matter-a. Solidb.Liquidc.Gas There are three states of matter – solid, liquid and gas.Solids : Matters which have fixed volume and shape are called solids. For example - stone, wood, brick, ice, sugar, salt, coal, etc. All metals are solid except mercury and gallium.Liquid: Matters which have fixed volume but indefinite shape are called liquids. For example - milk, water, petrol, kerosene, alcohol, oil, etc. Since liquid can flow, it is also called fluid.Gas : Matters which have indefinite shape and volume are called gases. For example - air, oxygen, hydrogen, nitrogen, carbon-dioxide, etc. 3 main states of matter SOLID LIQUIDS GAS |
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| 6959. |
The repeating component of each DNA strands lenghtwise ??? |
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| 6960. |
5 constituents in matter |
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Answer» In Indian Philosophy their are panchtatva (air, water, fire, sky, earth) Air,water,fire,earth,sky |
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| 6961. |
What is a soil |
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Answer» Soil is the upper most covering of the crust. It is made up of tiny particles of rocks and has very fine particles Soil is one of the most important natural resources. It supports varied life forms. |
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| 6962. |
Equation of motions in hindi speaking |
| Answer» 1. V=u+at. 2. S =ut + 1/2 at^2. 3. V^2 - u^2 = 2as | |
| 6963. |
Slope of velocity v/s time graph give physical quantity |
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Answer» Acceleration Its is very diffcult |
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| 6964. |
How can we know that particles of matter are continually moving???????? |
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Answer» When we see a beam of light entering a dark room we see particles moving in it this shows particles of maater are continously moving With the example of incense sticks when we start the incense stick then the fragnance of incense stick fall in the whole room due to diffusion.this example shows the particles of matter are continously moving.there are some more examples that shows that particles of matter are continously moving Examples that shows that particles of matter are continuously moving are as follows:1. The smell of food being cooked in the kitchen reaches us even from a considerable distance.2. The fragrance of burning incense stick spreads all around.3. The smell of perfume spreads due to the diffusion of perfume vapours into air.4. Dissolution of a crystal of copper sulphate or potassium permanganate into a glass of hot water or containing cold water. The solution turns blue or pink respectively. |
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| 6965. |
What is tonoplast ? |
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Answer» Outer covering of vacuoles The tonoplast is a membrane that encircles the vacuole and separates the vacuolar contents from the cytoplasm in a cell and isolates materials that are harmful. It is also called the vacuolar membrane. |
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| 6966. |
Give a brief account on bose- Einstein condensate (bec) |
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Answer» In,1920, indian physicist Satyendra nath bose had done some calculations on the fifth state of matter. Based on these calculations,Albert Einstein predicted a new state of matter called the Bose-Einstein condensate(BEC) In 2001,Eric A. Cornell, wolfang ketterle and Carl E. Wieman of usa shared the nobel prize of physics for achieving "Bose-Einstein condesate". The BEC is formed when a gas having very low density,of the order of 1/100-1/1000th of the density of normal air is cooled to super low temperatures \tIn 1920 Indian physicist Satyendra Nath Bose had done some calculations for a fifth state of matter. Building on it calculations, Albert Einstein predicted a new state of matter- the Bose Einstein Condensate (BEC).\tThe BEC is formed by cooling a gas of extremely low density (about one –hundred- thousandth the density of normal air) to super low temperature. |
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| 6967. |
Define melting point , boiling point, laten heat of fusion, latent heat of vaporization |
| Answer» The tempratue at which the object starts melting is called its melting point.The temprature at which the object starts boiling is called its boiling point. | |
| 6968. |
Define motion and types of motion with the help of examples |
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Answer» The movement of a body is called motion Types of motion are uniform and non uniform motion.Example are a car moving on a straight road and a football moving on rough surface. |
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| 6969. |
What is the work of Golgi complex |
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Answer» Packaging and despatch It is to process and bundle macromolecules like proteins etc as they are synthesized within the cell |
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| 6970. |
2 chapter questions |
| Answer» Extra questions ? | |
| 6971. |
What is the difference between plasma membrane and cell wall |
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Answer» How did u made this box | Plasma Membrane | Cell Wall | \t\t\tPlasma Membrane is a delicate, thin structure of around 5-10nm wide and is visible under electron microscope, and it is present in all types of cell, helps in the passage of molecules and protects the protoplasm.Cell Wall is a thick, rigid structure of around 4-20um wide and is visible under light microscope; it is present in plant cell, bacterial and fungal cell, helps in providing shape and rigidity to the cell.Plasma Membrane is present in all types of cells.Cell Wall is present in the plant cell, bacteria, fungi and algae.Made up of lipids and proteins and carbohydrates.Made up of cellulose (plant cell), chitin (fungi), and peptidoglycan (bacteria).Thin layers and is visible only through the electron microscope.Thick layers which are visible through the light microscope.Semi-permeable.Completely permeable.Plasma membrane have receptors, helps in cell-cell communication.Cell wall does not have receptors.Metabolically active and living.Inactive and non-living.Same thickness throughout its life.Thickness grows with life.Need proper nutrition to survive.Doesn\'t need any nutrition from cell but deposition instead.\t|
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| 6972. |
Function of lysosomes |
| Answer» \tThe sac-like structures in a cell surrounded by membrane are called lysosomes.\tThey keep the cells clean by digesting and breaking the outside materials like bacteria, food entering the cell or worn-out cell organelles into small pieces.\tThey can digest these organic materials due to the presence of strong digestive enzymes that can brreak down organic compounds. Therefore, lysosome is also known as a suicide sac.\tMany scientists believe that lysosomes are not present in plant cells and their function of lysosomes in plants is performed by vacuole. | |
| 6973. |
What is ammonium cloride? |
| Answer» NH4Cl is an inorganic compound with chemical name Ammonium Chloride. It is also called as sal ammoniac, the salt of ammonia and\xa0hydrogen chloride. It is a by-product of sodium carbonate. | |
| 6974. |
How the solid change to liquid state |
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Answer» By rising the temperature Solid to Liquid (Melting)Ice—–>WaterThe process in which a solid substance changes into a liquid on heating is called\xa0Melting or fusion.The temperature at which a solid substance melts and changes into a liquid at atmospheric pressure is called melting point of the substance.For Ex:The ice melts at a temperature of 0°C to form liquid water.So the melting point of ice is 0°C.Different solids have different melting points.For Example: Melting point of iron is 1535°C .Melting point of wax is 63°CHigher the melting point of solid substance,greater will be the forces of attraction between its particles.When a solid substance is heated,the heat energy makes its particles vibrate more vigorously.At the melting point,the particles of a solid have sufficient kinetic energy to overcome the strong forces of attraction holding them in fixed positions and break to form small groups of particles.And the solid melts to form a liquid. |
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| 6975. |
What is biogenisis ? How is plasma membrne formed during this process ? |
| Answer» Plasma membrane is made of lipid and protein . | |
| 6976. |
Name the green pigment in the chloroplasts |
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Answer» Chlorophyll Chlorophyll Chlorophyll Chroplast |
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| 6977. |
Example of sublimation |
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Answer» Camphor Dry ice Napthalene Balls is also an example Camphor is a example Kapoor |
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| 6978. |
Sir sodium banziate is a painkiller |
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| 6979. |
Deacribe kepler third laws of gravitation |
| Answer» \tKepler’s Third Law states that the cube of the mean distance ‘r’ of a planet from the Sun is directly proportional to the square of its orbital period \'T\'. | |
| 6980. |
Why markar ink is cold and why bad smell ? |
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| 6981. |
Explain me the second law of motion |
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Answer» It is law of momentum Hy karina What is law of motion |
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| 6982. |
What is osmosis? Explain. |
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Answer» movement of a solvent (such as water) through a semipermeable membrane (as of a living cell) into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane????? The movement of water in plasma membrane is called osmosis. |
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| 6983. |
Who is the inventor of microscope? |
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Answer» Knoll and Ruska Zacharias Janssen was the inventor of microscope. ☺️☺️☺️☺️☺️☺️☺️ It was invented in 1590 by Zacharias Janssen (claim made by his son) and/or Zacharias\' father, Hans Martens,[6][7] claims it was invented by their neighbor and rival spectacle maker, Hans Lippershey (who applied for the first telescope patent in 1608),[8] and claims it was invented by expatriate Cornelis Drebbel who was noted to have a version in London in 1619. |
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| 6984. |
Explain the following giving example ,saturated solution |
| Answer» A solution in which more solute cannot be dissolved at that temperature, is called a saturated solution. | |
| 6985. |
Differences between distance and displacement |
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Answer» The actual path covered by a body between two point is called Distance.The shortest path covered by a body between two point is called Displacement. Distance is only in positive but displacement can be positive *negative and 0 Distance is a scalar quantity while displacement is vector \tSl. No.Differentiating PropertyDistanceDisplacement1DefinitionThe complete length of the path between any two points is called distance.Displacement is the direct length between any two points when measured along the minimum path between them.2Denotationds3Direction ConsiderationTo calculate distance, direction is not considered.To calculate displacement, direction is taken into consideration.\t |
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| 6986. |
What is matter ????? |
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Answer» Mattet is substance that occupy space and mass Anything that occupy space and have mass is called matter Any thing that occupy space and have its own mass and volume Which occupy space and have some mass Any thing that occupy space and have mass |
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| 6987. |
How do petroleum occur in nature |
| Answer» Petroleum was formed by the decomposition of the remains of the tiny plants and animals buried under the sea millions of years ago. When the tiny plants and animals died, their bodies sank to the bottom of the sea and were soon covered with mud and sand. Due to high pressure, heat and action of bacteria, in the absence of air, the dead remains of tiny plants and animals were slowly converted into petroleum. The petroleum thus formed got trapped between two layers of impervious rocks, forming an oil deposit. | |
| 6988. |
Differentiet between atom and molecule |
| Answer» The structure of matter is called an atom | |
| 6989. |
What is the size of cell |
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Answer» 5 to 100 micrometres in eukaryotes0 to5 micrometres in prokaryotes Cells have different sizes Cell have different size |
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| 6990. |
How to separate a mixture of salt and ammunium |
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| 6991. |
How to make sabji |
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Answer» It is study time Tave ko garam karke apna sar rakho Please wacth the yuotube videos?? |
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| 6992. |
Can an object be accelerated if it is moving with constant speed?if yes,explain giving example |
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Answer» No it can\'t be possible No because object can be accelerated when its speed varied |
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| 6993. |
What is a cytoplasm |
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Answer» Cytoplasm is a fluid like structure present between the cell membrane and nucleus.it contains many enzymes,cellorgnelles etc.? Cytoplasm is a fluid inside the cell. Cytoplasm are liquid fluid make of protine |
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| 6994. |
Hllooo rohit |
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| 6995. |
Can you give some examples of deposition and condensation? |
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| 6996. |
What are the factors in which density is depend on |
| Answer» Mass | |
| 6997. |
Name three different types of cells found in animal and plant body.. |
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Answer» Red blood cellsWhite blood cells Nerve cell |
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| 6998. |
What is integrated agriculture |
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| 6999. |
Two activities related to cell and tissue |
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| 7000. |
What is phynomina that occur in sky douring the water droplets get slow |
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