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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.
| 6851. |
Regelation meaning |
| Answer» Regelation is the phenomenon of melting under pressure and freezing again when the pressure is reduced. Many sources state that regelation can be demonstrated by looping a fine wire around a block of ice, with a heavy weight attached to it. | |
| 6852. |
Function of plasma membrane |
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Answer» \tProtecting the integrity of the interior cell.\tProviding support and maintaining the shape of the cell.\tHelps in regulating cell growth through the balance of endocytosis and exocytosis.\tThe cell membrane also plays an important role in cell signalling and communication.\tIt acts as a selectively permeable membrane by allowing the entry of only selected substances into the • It seperates the contents of the cell from its external environment. • It allows or permits the entry and exit of only selected materials in and out of the cell.• It also prevents movement of some other materials. |
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| 6853. |
Nature of liquid |
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Answer» ¤ liquid have definite volume but do not have fixed shape¤ It have force of attraction weaker than solid Basic |
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| 6854. |
Write the property of solid, liquid, gas in tabulate |
| Answer» Properties of solids\tSolid has fixed volume.\tSolid has fixed shape.\tSolid has high density.\tSolids are heavy.\tSolid does not flow.Properties of liquid\tLiquid has definite volume.\tLiquid has no definite shape.\tLiquid gets the shape of container in which it is kept.\tLiquid cannot be compressed much.\tLiquid has less density compare to solid.\tLiquid is lighter than solid.\tLiquid flows and hence is called fluid.Properties of gas\tGas has indefinite shape\tGas has no fixed volume.\tGas gets the shape and volume of container.\tGas fills the container completely.\tGas has very low density.\tBecause of low density gas are light.\tGas can flow easily and hence are called fluid. | |
| 6855. |
Is displacement a scalar quantity? |
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Answer» No, displacement is not a scalar quantity because it has magnitude as well as direction. false, it is a vector quantity |
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| 6856. |
What is the construction of a Golgi apparatus ?? |
| Answer» The Golgi body is found near the nucleus and endoplasmic reticulum. The Golgi body consists of a stack of flat membrane-bound sacs called cisternae. The cisternae within the Golgi body consist of enzymes which modify the packaged products of the Golgi body (proteins). | |
| 6857. |
How particles move in amatter |
| Answer» Mostly by heating effect, it produce brownien movement of particals in matter | |
| 6858. |
Write any three properties of matter |
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Answer» 1)Particles of matter are continuously moving 2) they have force of attraction between them 3) it occupies space Particles of matter are in continous motion . They have force of attraction between them and the have spaces between them |
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| 6859. |
What is the unit to express speed |
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Answer» Metre per second Meter per second ms-1 |
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| 6860. |
A satellite is moving around earth in it\'s orbit.Is this motion uniform or accelerated?? |
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| 6861. |
What is solution. |
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Answer» A mixture of solute ex salt and solvent ex water is called solut Mixture of solute and solvent |
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| 6862. |
What is a nature of uniform motion |
| Answer» At uniform motion velocity is constant | |
| 6863. |
What is the main function of luecoplast |
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Answer» (1) They are colourless.(2) They are cylindrical or rounded in shape.(3) They are found in unexposed cells.(4) They can change to other types of plastids.(5) They take part in storage of food, e.g., amyloplasts (carbohydrates), elaiplasts (lipids), aleuroplasts (proteins) . Luecoplast is mainly work as store room for plants. It clean all unworking cell from our body.......... |
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| 6864. |
In collenchyma cells are thick walled yet _ |
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| 6865. |
Differentiate between linear speed and angular velocity |
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| 6866. |
Chapter 1 questions & aunsar |
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| 6867. |
Define fertilization |
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Answer» The first step in the process of reproduction is the fusion of sperm and on ovum. When sperms come in contact with an egg. Such fusion of egg and sperm is called fertilisation.During fertilisation, the nuclei of the sperm and eggs fuse to form a single nucleus. The results in the formation of a fertilised egg or zygote. Fertilizatio is a process through which the off springs are born when the interaction of sperm and ova takes place. It is a very important process because by this only babies enters in this earth and the generation of one family goes on.... Fertilizer is a chemical substance which help us to grow more crop in a same field but in excess it is harmful for our field |
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| 6868. |
why water comes out of the salad when salt is sprinkled on |
| Answer» Salt is hygroscopic. It absorbs the water from the vegetables. Another reason could be the water comes out due to osmosis because of the higher concentration of salt outside the cells of the vegetables. | |
| 6869. |
Solidification |
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Answer» The phenomenon of change of liquid to solid is called solidification. For instance, formation of ice from water Changing a liquid to solid is called solidification |
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| 6870. |
What is osmotic pressure in cell ?? |
| Answer» Osmotic pressure is the pressure which needs to be applied to a solution to prevent the inward flow of water across a semipermeable membrane. It is also defined as the minimum pressure needed to nullify osmosis.The phenomenon of osmotic pressure arises from the tendency of a pure solvent to move through a semi-permeable membrane and into a solution containing a solute to which the membrane is impermeable. This process is of vital importance in biology as the cell’s membrane is selective toward many of the solutes found in living organisms. | |
| 6871. |
What is material |
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Answer» A substance that can be used for making or doing something Asfwfgzjs hi |
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| 6872. |
Functions of endoplasmic reticulum |
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Answer» \tThe endoplasmic reticulum (ER) is an organelle found in the cells of eukaryotic organisms. It is an interconnected network of flattened sacs or tubes encased in membranes. These membranes are continuous, joining with the outer membrane of the nuclear membrane. ER occurs in almost every type of eukaryotic cell except red blood cells and sperm cells.\tEndoplasmic reticulum has two types, rough endoplasmic reticulum (RER) and smooth endoplasmic reticulum (SER). Rough ER is studded with ribosomes, the site of protein synthesis. This type of ER is especially prominent in certain kinds of cells like hepatocytes where active protein synthesis occurs. Smooth ER doesn\'t have ribosomes and is very important to the process of metabolism.\tEndoplasmic reticulum has a number of jobs within the cell. This includes the folding and transport of various proteins, specifically carrying them to the Golgi apparatus. Someother proteins, mostly the glycoproteins, move across the ER\'s membrane.\tThe ER is also responsible for marking these proteins that it transports with a signal sequence. Other proteins are headed outside the ER, so they are packed into transport vesicles and moved out of the cell via the cytoskeleton.\tBasically, the ER is the transportation system of the eukaryotic cell, and its proteins are contained within it until they are needed to move. (1) It forms supporting skeletal framework of the cell.(2) ER provides a pathway for the distribution of nuclear material from one cell to other.(3) Certain enzymes present in smooth endoplasmic recticulum synthesize fats (lipids), steroids and cholestrol.(4) Rough Endoplasmic recticulum is concerned with the transport of proteins which are synthesized by ribosomes on their surface. |
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| 6873. |
Arthtropoda |
| Answer» Arthropoda is a phylum of animals. Its meaning is joined legged animals. They are true coloemate, bilaterally symmetrical triploblastic and have both mouth and ****. This phylum includes spiders, scorpions etc. | |
| 6874. |
the second equation Of motion |
| Answer» s = ut +1/2 at^2 | |
| 6875. |
why does water cold when we add some ice tubes to it? |
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| 6876. |
Which force is exerted when a batsman hits a ball ? |
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Answer» muscular force No Muscular force |
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| 6877. |
Write about interconversion of the three state of matter??? |
| Answer» In solid the force of attraction is maximum and has the greatest kinetic energy, in liquid the attraction is minimum thus the kinetic energy\xa0is less and in gas the attraction is almost negligible and thus kinetic energy\xa0is very less. | |
| 6878. |
What is omega |
| Answer» 1.3/10. 1.4/1013*10/10*10. 14*10/10/10130/100. 140/100=130/100 - 131/100 -132/100 It\'s is a answer of its question. | |
| 6879. |
What ia acceleration and deacceleration?? |
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Answer» Accer. Is the rate of change in velocity per unit time.Accer.(a)=initial velocity(v) - final velocity (u) /. Time(t)Deacceration is negative accer. It is also called retardation. Acceleration is a measure of the change in the velocity of an object per unit time and mathematically it is given asAcceleration = Change in time taken/ velocity |
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| 6880. |
List reactivity table of chemistry |
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Answer» K-potassiumNa-sodiumCa-calciumMg-magnesiumAl-aluminiumZn-zincFe-ironPb-leadH-hydrogenCu-copperAg-silverAu-goldIt is in decreasing order of their reactivity . K is the most reactive and Au is the least. Symbol\tElementK\tPotassium ( Highly Active Metal)Ba\tBariumCa\tCalciumNa\tSodiumMg\tMagnesiumAl\tAluminiumZn\tZincFe\tIronNi\tNickelSn\tTinPb\tLeadH\tHydrogenCu\tCopperHg\tMercuryAg\tSilverAu\tGoldPt\tPlatinum |
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| 6881. |
Calculate the no. Of aluminium ions present in 0.0051 g of Al2O3 |
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| 6882. |
WHO DISCOVERED THE LIVING CELL, CELL THEORY and the dead cells? |
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Answer» Living cells are first observed in pond watre by Leeuwenhook Robert Hook J.J. Thomson\' |
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| 6883. |
What is the common unit of temperature and si unit |
| Answer» Si unit of temperature is degree Celsius | |
| 6884. |
A car moves around a circular round of radius 210 m calculate displacement of the car |
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| 6885. |
Why In summer season wet clothes dried up faster then winter season |
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Answer» Simple/=because in summer the temperature is high so the air can absorb more moisture.in winters humidity(moisture in air)is lowand temperature is low so evaporation is slower. Because in summer the moisture level is very high due to humidity so cloths are fastly dried in summer than winter |
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| 6886. |
When a person holds ice cubes on pam it felts cool , Why |
| Answer» When we hold ice cubes the ice cubes evaporates fastly , and the palm felts cool | |
| 6887. |
Difference between boling or evaporation |
| Answer» One of the main reasons are that in boling we provide the heat energy and in evaporation the liquid gets vapourised naturaly.... | |
| 6888. |
What is the functional and structural unit of life ? |
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Answer» Cell Cell Cell Cell is the functional unit of life Cell |
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| 6889. |
What is the functional and structural unit of life |
| Answer» Cell is the functional and structural unit of life because all the living organisms are made up of a cell and it provides the structure to the organisms. There is a divison of labour in multicellular organisms . To carry out the activities the different cell performs different functions . | |
| 6890. |
What is the role of cell wall? |
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Answer» The cell walll is the protective , semi - permeable outer layer of a plant cell. A major function of the cell wall is to give the cell strength and structure , and to filter molecules that pass in and out of the cell. 1. It provides and maintains the structure of the cell . 2. It provides rigidity and protects the plant from any damage .3. It enables the plant to stay to tolerate the harsh climate and conditions . |
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| 6891. |
Give two example of osmosis in plant |
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Answer» Some examples of Osmosis in everyday life are:-\t\twhen you keep raisin in water and the raisin gets puffed.\t\t\tMovement of salt-water in animal cell across our cell membrane.\t\t\tPlants take water and mineral from roots with the help of Osmosis.\t\t\tIf you are there in a bath tub or in water for long your finger gets pruned. Finger skin absorbs water and gets expanded.\t\t\tIt is used for preservation of fruits and meat.\t\xa0 Absorption of water by roots & |
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| 6892. |
What is latenat heat |
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Answer» The heat energy which has to be supplied to change the state of a substance is called its latent heat. The amount of heat required to change the state of matter without change in temperature is called latent heat . It is also called as hidden heat (latent =hidden). Example: when water is at it boiling point it absorbs latent heat of vapourisation and forms steam . The heat energy which is needed by an object to change it\'s state is called latent heat |
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| 6893. |
Give a inference of this activity how can we obtained coloured component (dye) from blue black ink |
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Answer» By process of cromatography We can dipp a paper in blue black ink so we obtain that coloured component is separate from ink |
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| 6894. |
How do substances like CO2 and water move in and out of the cell? |
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Answer» By the process of diffusion This happens because of the process of diffusion . It is the process in which the matter moves on from the higher concentration to lower concentration on its own . Because membrane of the cell is selectively permeiable |
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| 6895. |
The boiling point of iron is 1535°c convert it into SI unit? |
| Answer» 1535+273=1808 | |
| 6896. |
what is meant by saying that the latent heat of fusion of ice is 3.34×10(power 5) J/kg? |
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| 6897. |
What is osomis |
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Answer» osmosis is a movement of water molecules from higher concentration towards lower concentration through a semipermeable membrane The osmosis is the movement of particles higher to lower concentration throw semi permeable membrane |
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| 6898. |
Why water exist on liquid on room temperature . justify your answer? |
| Answer» Because water have not fixed shape but have a volume so. , This is the main characteristics of water. | |
| 6899. |
व्हाट इस पेरोइडिक तबले होवह एलिमेंट्स अरे इन peroidic |
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| 6900. |
How does osmosis take place |
| Answer» osmosis is a movement of solvent molecules through higher concentration towards lower concentration through a selectively permeable membrane it takes place through selectively permeable membrane | |