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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.
| 1151. |
How does plasmalysis occur |
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Answer» In this case the movement of water takes place through the process of osmosis due to which the plant cell shrinks. This is called plasmolysis When a plant cell is placed in a medium which is very dilute i.e.,it consists of more water component then of the plant cell |
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| 1152. |
What is the structure of a cell |
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Answer» Which cell plant or animal??? Structure of cell is like onion bulb |
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| 1153. |
What types of tissues are there in world |
| Answer» Plant tissue and animal tissue | |
| 1154. |
What is set ice |
| Answer» | |
| 1155. |
Define cell.what does it mean in latin |
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Answer» Cell is a basic structural and functional unit of life.A cell means a small compartment or a small room. In latin the meaning of cell is a small room A little in latin is called cell |
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| 1156. |
What is dry ice ❄.? |
| Answer» The solid form of carbondioxide is called dry ice or cardice | |
| 1157. |
Expain the effect of pressure on gases and liquids |
| Answer» If we apply moer and mere pressure on gas their molecule come closer to each other hence they will be convert into liquid and when we apply same process on liquid they can be change into solid | |
| 1158. |
What is motoin |
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Answer» The movement of any object from one place to another with respect to any stationary object is called motion When a object change its position with time is called motion |
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| 1159. |
Fruit s |
| Answer» | |
| 1160. |
What is carbondioxide |
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Answer» It is a type of gas which we out hale from our body it used by plants to produce food by photosynthesis It is a type of gas present in the air |
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| 1161. |
What is diffusion ? |
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Answer» Movement of air particles from its higher concentration to its lower concentration through a semi - permiable membrane. This process is known as diffusion The process by which gasious molecule transfer from one place to another and spread in all direction with the help of air molecule is called diffusion Movement of particles of matter from a region of higher concentration to that of lower concentration. |
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| 1162. |
Difference between compound microscope and electron microscope |
| Answer» Compound microscope is an optical instrument for forming magnified images of small objects having an objective lens with a very short focal length.While electron microscope is a high power of microscope uses beam of electron focused by magnetic lenses instead of rays of light. And its magnification is greater than that of any optical microscope. | |
| 1163. |
Name any three factors on which the shape of cells in multicellular cells depends |
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| 1164. |
Meaning of magnitude |
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| 1165. |
9 class science ncert chapter 1 question 4 what are the characteristics of the particles of matter? |
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Answer» The particles of matter have space between them2. Particle of matter have attract each other The important characteristics of particles of matter are the following:The particles of matter are very, very small.The particles of matter have space between them.The particles of matter are constantly moving.The particles of matter attract each other.The particles of matter are very, very small:The very, very small size of particles of matter can be shown by performing the following experiment by using potassium permanganate and water.Take 2-3 crystals of potassium permanganate and dissolve them in 100 ml of water in a beaker. We will get a deep purple colored solution of potassium permanganate in water.Take out approximately 10 ml of this solution and put it into 90 ml of clear water in second beaker. Due to this dilution, the color of potassium permanganate solution in the second beaker becomes a bit lighter.Take out 10 ml of this solution and put it into another 90 ml of clear water in third beaker. The color of solution will become still lighter.Keep diluting the solution like this 5 to 8 times.In this way, we get a very dilute solution of potassium permanganate in water but the water is still colored.This experiment shows that just a few crystals of potassium permanganate can colour a large volume of water.So we conclude that there must be millions of tiny particles in just one crystal of potassium permanganate, which keep on dividing themselves into smaller and smaller particles.The particles of matter have space between them:The spaces between the particles of matter can be shown by performing the following experiment by using water and sugar.Take a 100 ml beaker.Fill half the beaker with water and mark the level of water.Dissolve some sugar (50gm) with the help of a glass rod.We will find that the level of sugar solution in the beaker is at the same mark where water level was initially in the beaker.When sugar is dissolved in water, its crystals separate into very fine particles. These particles of sugar go into the spaces between the various particles of water due to which there is no change in the volume of water on dissolving sugar in it.The fact that there is no change in volume on dissolving sugar in water tells us that there are spaces between the particles of water. The partivle of matter are very very small (2)the particle of matter have space between them(3)the particle of matter attract to each other 1)Particles of matter are extremely small in size.2) Particles of matter are continuously moving.3) Particles of matter have space between them.4)Particles of matter attract each other. They are very very smallThey have spaces between themThey are constantly movingThey attract each other |
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| 1166. |
Why nucleus is called as contRol room of cell |
| Answer» The important characteristics of particles of matter are the following:The particles of matter are very, very small.The particles of matter have space between them.The particles of matter are constantly moving.The particles of matter attract each other.The particles of matter are very, very small:The very, very small size of particles of matter can be shown by performing the following experiment by using potassium permanganate and water.Take 2-3 crystals of potassium permanganate and dissolve them in 100 ml of water in a beaker. We will get a deep purple colored solution of potassium permanganate in water.Take out approximately 10 ml of this solution and put it into 90 ml of clear water in second beaker. Due to this dilution, the color of potassium permanganate solution in the second beaker becomes a bit lighter.Take out 10 ml of this solution and put it into another 90 ml of clear water in third beaker. The color of solution will become still lighter.Keep diluting the solution like this 5 to 8 times.In this way, we get a very dilute solution of potassium permanganate in water but the water is still colored.This experiment shows that just a few crystals of potassium permanganate can colour a large volume of water.So we conclude that there must be millions of tiny particles in just one crystal of potassium permanganate, which keep on dividing themselves into smaller and smaller particles.The particles of matter have space between them:The spaces between the particles of matter can be shown by performing the following experiment by using water and sugar.Take a 100 ml beaker.Fill half the beaker with water and mark the level of water.Dissolve some sugar (50gm) with the help of a glass rod.We will find that the level of sugar solution in the beaker is at the same mark where water level was initially in the beaker.When sugar is dissolved in water, its crystals separate into very fine particles. These particles of sugar go into the spaces between the various particles of water due to which there is no change in the volume of water on dissolving sugar in it.The fact that there is no change in volume on dissolving sugar in water tells us that there are spaces between the particles of water. | |
| 1167. |
All the elements have their first words as their symbol except sodium and potassium. Why? |
| Answer» Because sodium and potassium have their Greek names as natrium and kalium | |
| 1168. |
Can anybody explain me :1)velocity2) displacement |
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Answer» A displacement is a vector whose length is the shortest distance from the initial to the final position of a point P. It quantifies both the distance and direction of an imaginary motion along a straight line from the initial position to the final position of the point. Velocity is a physical vector quantity; both magnitude and direction are needed to define it. The scalar absolute value of velocity is called "speed", being a coherent derived unit whose quantity is measured in the SI as metres per second or as the SI base unit of. The distance travelled in a specified direction is displacement whereas the displacement coverage by an object in specified direction is velocity |
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| 1169. |
What so you mean by process of osmosis? |
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Answer» The water accure by the plasma membrane by the prosses of osmosis a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one. The tendency of a fluid, usually water, to pass through a semipermeable membrane into a solution where the solvent concentration is higher, thus equalizing the concentrations of materials on either side of the membrane. The flow of water from a region of higher concentration to a region of lower concentration through a semi permeable membrane is called osmosis |
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| 1170. |
When sugar crystals desolved in water the level of water does not rise up . |
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Answer» On dissolving sugar crystals into the water it is generally seen that the level of the water does not rise. The reason behind this is, that the particles of matter have space between them. Hence, when the crystals of sugar are dissolved in the water it is seen that the level of water does not changes and it remains constant. No It\'s not No No it doesn\'t. Yes No |
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| 1171. |
How to make project of biology fun dental unit of life |
| Answer» You can make a model of the plant cell and Animal cell. And watch the video from YouTube ! : ) | |
| 1172. |
Why should water droplets seen on glass/plastic bottle. |
| Answer» If the water is chilled it is not having any kinetic energy so when the water vapour present in the atmosphere come near the chilled glass they looses their energy and stick on the glass and we can see the water droplets on the glass | |
| 1173. |
Displacement means |
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Answer» The shortest distance travelled between the initial point and the final point The Shortest ( straight line) distance between initial and final positions of the body along with direction is called displacement. S.I unit of displacement is meter (m) Shortest distance between initial and final position It is a shortest distance travelled between initial position and final position. Displacement It is the shortest distance between two points |
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| 1174. |
What is negative acceleration? |
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Answer» When any bodies initial velocity is greater than final velocity in acc. Then it is called retardetion/negetive acceleration/decelaration It is retardation and deceleration |
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| 1175. |
What is meant by balanced forces |
| Answer» If an object is being pushed or pulled from both the sides with equal amounts of force it is called balanced force. In such a case there will be no Movement in the object due to equal forces acting on them from opposite sides. | |
| 1176. |
How is hail formed? |
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| 1177. |
Why the evaporation is called a surface phenomenon? |
| Answer» Evaporation is called a surface phenomenon because it takes place at the surface where the particles of liquid possess highest kinetic energy.so they require less heat to evaporate in comparison to the ones at the bottom. | |
| 1178. |
What is Golgie apatus |
| Answer» It is known as the shipping centre of the cell | |
| 1179. |
How do substances like CO2 and water move in and out of the body |
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Answer» Sorry through the process of diffusion Throw the process of diffusiom |
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| 1180. |
Define of solvent |
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Answer» The things which under in the mixing substance is called solvent solvent is a thing in which solute mix for example = salt (the solute) mix in water(the solvent) [salt +water]so in this case water is solvent..! In which the solute is mixed is known as solvent ???. |
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| 1181. |
What is the nature of distance - time graph for uniform motion |
| Answer» The graph would be a straight line. | |
| 1182. |
How the body is growing |
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| 1183. |
What is tonicity |
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| 1184. |
Molar mass of Ethane |
| Answer» Molar mass of Ethane with solution | |
| 1185. |
What is intercalary tissue |
| Answer» Intercalary meristem is located at internodes or stem regions between the places at which leaves attach, and at leaf bases, especially of certain monocotyledons.\xa0The cells of the intercalary mersitem are active and continuously form a number of new cells.\xa0Intercalary meristem helps in the longitudinal growth of a plant. | |
| 1186. |
Sandas |
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| 1187. |
Examples of uniform and non uniform acceleration |
| Answer» A freely falling body, a train moving in a straight line with constant speed are ex. of uniform acceleration.A car or any vehicle moving in a crowded city is non uniform acceleration. | |
| 1188. |
Newton\'s first law of mation |
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Answer» When a body moving with state of rest or of uniform motion so body want to be continued in sate of rest or uniform motion. \xa0The first law of motion is stated as: An object remains in a state of rest or of uniform motion in a straight line unless compelled to change that state by an applied force.All objects resist a change in their state of motion. The tendency of undisturbed objects whether they are at rest or moving with uniform velocity is called inertia. Hence, the first law of motion is also known as the law of inertia Inertia |
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| 1189. |
Convert speed 6m/s into km/h |
| Answer» 6 m/sec = (6 x 18) / 5 = 21.6 km/hr | |
| 1190. |
100ml of alcohol is dissolved in 400ml of h2o calculate the volume present of solute |
| Answer» 20percent | |
| 1191. |
give me an idea of science inovative working model |
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| 1192. |
Where is ova |
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Answer» Ovum is also called ova. It is the female reproductive gamete. In female reproductive system |
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| 1193. |
X y koyn h |
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| 1194. |
What is the smallest particle of matter n |
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Answer» Atoms Atoms Attom? |
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| 1195. |
Why we improve the productivity of crop ? Give some reason . |
| Answer» We have to improve the productivity of crip because we need more food to eat | |
| 1196. |
Matter in our surroundings subject assessment worksheet 74 |
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| 1197. |
describe the structure and function of lysosome |
| Answer» Lysosomes are also known as the suicide bag of the cell | |
| 1198. |
enumerate the changes that take place inside the matter during changes of states |
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| 1199. |
write one use of oxygen and carbon dioxide dissolve in water |
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| 1200. |
Different between plants cell and animal cell |
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Answer» In animal cell 1. Cell wall is absent.2.plasma membrane is the outer layer which provides turgidity to the cell.3. Vacuoles are small in size.4. Plastids are absent.5. Nucleus lies in the centreIn planet cell.1. Cell wall is present.2. Cell wall is tje outer layer which gives rigidity and turgidity to the cell.3. Vaculoes are big in size .4. Plastids are present.5. Nucleus lies on one side. In plant cell chloroplast and cellwall is present. Vacuole are of large size Centtriole are absent and opposite to it is characters of animal cell |
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