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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.
| 7701. |
Colloidal is homogenous solution or heterogeneous solution? |
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Answer» It is heterogeneous mixture but look like homogeneous mixture Homogeneous mixture hota hai but actually heterogeneous hota hai Seems to be homogeneous but it is heterogeneous It appears to be homogeneous but actually it is heterogeneous. Ex-milk Heterogenous |
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| 7702. |
What do we get for cereals,pulses,fruits,vegetables? |
| Answer» (i) From cereals we get carbohydrates.(ii) From pulses we get proteins.(iii) From fruits and vegetables we get vitamins and minerals. We also get small amount of proteins, carbohydrates, and fats from them. | |
| 7703. |
Why is atmosphere essential of life? |
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Answer» Atmosphere cantain o2which is essential for life. Atmosphere is essential for life for several reasons. Some of these reasons are(i) Oxygen, which is required for the survival of every living organism is present in the atmosphere.(ii) Atmosphere works as an iiisulator, it keeps the average temperature of the earth fairly constant during the day and night by preventing escape of heat into outer space.(iii) Atmosphere also acts as protective blanket for the Earth. It absorbs most of the harmful radiations such as ultraviolet (UV) radiations coming from the Sun. It results in the Earth receiving just the right amount of heat and sun’s rays, which helps in the climate control and allows the living organisms to exist. |
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| 7704. |
What is the mathematical formulation of second law of motion |
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Answer» P=mv F= ma force is directly proportional to mass *acceleration F=ma p =mv |
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| 7705. |
What is membranes bio genesis |
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Answer» Some of these proteins and lipids help in building the cell membrane . This process is called as membrane biogenesis The smoth endocrine rectenum produce lipids and proteins ,which help in build cell membrane the process known as membrane biogeneais |
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| 7706. |
How to separate alchol from water by using fractional distillation |
| Answer» Alcohol and water are miscible liquids. The boiling point of alcohol is 78 degree celsius and boiling point of water is 100 degree celsius. Since the boiling point of alcohol and water are different therefore we can seperate alcohol and water by fractional distillation. | |
| 7707. |
What is the acceleretion produced by a force of 12 newtons exerted on an object of mass 3kg? |
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Answer» F=ma,12=3×a,12÷3=a,4=a F=w×mW=a12=a×3A=12÷3A=4 Force = mass × acceleration12 = 3 × accelerationAcceleration = 12÷3Acceleration = 4 |
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| 7708. |
Sublimation definition |
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Answer» It is a proccess in which solid changer into gas without going in liquid state. It is a process in which solid directly changes into vapours without changing into liquid state. For example camphor,napthelene can sublime. Change of state from solid to gas or feom gas to solid or vice versa without changing into its liquid form is know as sublimation |
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| 7709. |
Difference between eukaryotic cells and prokaryotic cells |
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Answer» In prokaryotes membrane bound cell organelles are absent but in eukaryotes they are present. Prokaryotes have undefined nucleus known as nucleoid whereas eukaryote have well defined nucleus with nuclear membrane.prokaryote have single chromosome but eukaryote have many chromosome.. |
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| 7710. |
Explain types of colloids |
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Answer» Colloids are classified into 7 groups:•Sol•Solid sol•Aerosol•Emulsion•Foam•Solid Foam•Gel A colloid is primarily a heterogeneous mixture in which the minute particles of one substance are dispersed in another substance, called the dispersion medium.Colloids can be classified according to different properties of the dispersed phase and medium.Firstly, based on the types of particles of the dispersed phase, colloids can be classified as:\tMultimolecular colloids: When the dissolution of smaller molecules of substance or a large number of atoms takes place, they combine to form a species whose size is in the range of colloidal size. The species formed is known as the multimolecular colloids. For example, Sulphur solution contains particles which have thousands of S8.\tMacromolecular colloids: In this type of colloids, the macromolecules form a solution with a suitable solvent. The size of the particles of this macromolecular solution lies in the range of colloidal particles size. Thus this solution is also known as the macromolecular colloids. The colloids formed here are similar to that of the actual solution in many respects and are very stable. Example: Starch, proteins, enzymes, and cellulose are the naturally occurring macromolecular colloids whereas polyethene, synthetic rubber, etc. are the synthetic macromolecules.\tAssociated colloids: Some substances act as a strong electrolyte when they are in low concentrations, but they react as colloidal sols when they are in high concentration. In higher concentration, particles aggregate showing a colloidal behaviour. These aggregated particles are known as the micelles. They are also known as the associated colloids. The formation of the micelles occurs above a particular temperature called the Kraft temperature (Tk) and also above a specific concentration called the critical micelle concentration. These colloids can be reverted by diluting it. Examples of some associated colloids are soaps and synthetic detergents. |
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| 7711. |
Explain xylem and ployem |
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Answer» XYLEM-\t\xa0They transport water and minerals absorbed by roots to leaves.\t\xa0This process of transport is known as "Ascent of sap".\t\xa0Xylem contains tracheids, trachae, parenchyma and fibre.\t\xa0Trachae, parenchyma and fibre is absent in Pteridophyta and Gymniosperms.\t\xa0All four parts are present in Angiosperms.PHLOEM-\t\xa0They are responsible for transport of food from leaves to all parts of plants.\t\xa0This process of transportation is called "translocation".\t\xa0Turger pressure acts against gravitational pull which allow transfer of food to parts higher than leaves.\t\xa0Turger pressure was propounded by JC Bose.\t\xa0Phloem contains seive tube, seive plate, fibre, parenchyma and companion cells.\t\xa0Seive cell is absent in Pteridophyta and Gymniosperm.\t\xa0Seive tube is absent in Angiosperms.\xa0 Xylem help in teansportation of water and minerals to leaves and phloem transport food from leaves to other plant organs |
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| 7712. |
What are the two important things that plant takes from water? |
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Answer» Water and minerals from ground For photosynthesis through their roots. |
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| 7713. |
What is lichen? Give one example |
| Answer» A fungus and analga or cyanobacteria | |
| 7714. |
What is meaning of utilisied |
| Answer» Utillisied means used | |
| 7715. |
What is ill |
| Answer» Fever | |
| 7716. |
What is sperm in hindi |
| Answer» Virya | |
| 7717. |
5 marks question in biology 10 syllabus |
| Answer» | |
| 7718. |
Lesson 3rd tissue notes |
| Answer» U can officially see cbse revision notes it\'s available there | |
| 7719. |
Differnce between infection and non-infection diseases? |
| Answer» One of the causes of diseases is the infectious agents, mostly called microbes or micro-organisms. Diseases where microbes are the immediate causes are called infectious diseases. This is because they spread the diseases in the community. Some diseases are not caused by infectious agents. Their causes vary, but they are not external causes like microbes that can spread in the community. Instead, these are mostly internal, non-infectious causes. Such diseases are called non-infectious diseases. For example, cancer is caused by genetic abnormalities. High blood pressure can be caused by excessive weight and lack of exercise. Different diseases spread by different means and can be treated and prevented at community level. | |
| 7720. |
how to represent under root 3 on number line |
| Answer» | |
| 7721. |
What are the functions sclerenchyma |
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Answer» It is the tissue which makes the plant hard and stiff . The cells of this tissue are dead It provides rigidity to the cell and has a very thick cell wall and has no intermolecular sp?aces |
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| 7722. |
Keshav birla name means |
| Answer» Neurotic | |
| 7723. |
why does a cricket player moves his hands backward while catching a ball |
| Answer» To increase time and to reduce momentum as momentum is inversely proportional to time | |
| 7724. |
What is parenchyma.? |
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Answer» A few layers of cells beneath the epidermis are generally simple permanent tissue.Parenchyma is the most common simple permanent tissue . It consist of relatively unspecialised cells with thin cell walls . They are living cells . They are usually loosely arranged , thus large spaces between cell (intercellular spaces) are found in this tissue . This tissue generally stores food . Thankyou hope you like it . ?? It is a part of simple permanent tissue |
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| 7725. |
why is gravitational constant is called universal |
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Answer» Because it is applicable for any two objects in this universe Because the gravity does not change. The value of G does not depend on the nature of the intervening medium. Also, G is constant for any object in the universe. Hence, is is known as \'universal gravitational constant\'. why is gravitational constant is called universal |
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| 7726. |
An object travels 16m in 4s And then another 16m in 2s what is the average speed of the object |
| Answer» Average Speed = total distance / total time = 32/6 = 5.33 m/s | |
| 7727. |
_____ is the measure of inertia of a body. |
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Answer» Mass Mass |
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| 7728. |
What is difference between Sol and solution |
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Answer» Sol is a colloid \tSolutionSuspension1.They are homogeneous in nature1.They are heterogeneous in nature2. They do not scatter a beam of light and hence do not show Tyndall effect.2. They do not scatter a beam of light and hence do not show Tyndall effect.3. They are very stable3. They are unstable4. Examples of solution are: salt in water, sugar in water.4. Examples of suspension are: sand in water, dusty air\t |
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| 7729. |
What is pinocytocis |
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Answer» Pinocytosis is a mode of endocytosis in which small particles are brought into the cell, forming an invagination, and then suspended within small vesicles. These pinocytotic vesicles subsequently fuse with lysosomes to break down the particles. Pinocytosis is also known as cell-drinking. Khvfvvcldsrzz |
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| 7730. |
What is membrane biogenesis?How is plasma membrane formed during this process? |
| Answer» The process of plasma membrane formation is called membrane biogenesis.Following organelles are involved in this process:The proteins and lipids are first synthesised in rough endoplasmic reticulum and the smooth endoplasmic reticulum, respectively. These are then transported to the Golgi complex for their modification. After modification, these are transported to the cell surface through vesicles which bud off from Golgi complex to fuse with cell membrane and form a part of the membrane. | |
| 7731. |
how does cork help the plant ? |
| Answer» As the plant grows older, the outer protective tissue, epidermis undergoes certain changes. A strip of secondary meristem, called phellogen or cork cambium replaces epidermis of stem. Cells on the outside are cut off from this layer. This forms the several-layer thick cork or the bark of the tree. Cells of cork are dead and compactly arranged without intercellular spaces. They also have a chemical called suberin in their walls that makes them impervious to gases and water. | |
| 7732. |
What is fingiring |
| Answer» The push and pull of your finger in a deep thing is called fingering. | |
| 7733. |
How cactus get its food |
| Answer» | |
| 7734. |
Prove the law of conservation of momentum. |
| Answer» Law of conservation of momentum states that For two or more bodies in an isolated system acting upon each other, their total momentum remains constant unless an external force is applied. Therefore, momentum can neither be created nor destroyed. | |
| 7735. |
Types of tissue |
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Answer» There are two types of tissuePlant Tissue Animal tissuePlant tissue is classified as :1) Meristematic tissue - apical meristem, lateral meristem , intercalary meristem2) permanent tissue - simple & complexAnimal tissue is classified as :Epithelium,Connective,Muscle,Nerve. 1-Meristematic tissue2-Permanent tissue•Simple permanent tissue•Complex permanent Tissue |
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| 7736. |
Relation between (g) and (G) |
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Answer» g = GM/ r^2 Gg She in notes of gravitation |
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| 7737. |
3 law of Kepler |
| Answer» 1.kepler\'s first law - All planet move about the Sun in Elliptical orbit, having the sun as one of the foci. Second law -A radius vector joining the any planet to the sun sweeps out equal area in equal length of time. Second law -The square of the sideral periods of the planet are directly proportional to the cubes of their mean distance from the sun | |
| 7738. |
What is animal husbandry |
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Answer» The branch of agriculture that deals with feeding, caring and breeding of domestic animal. It comes under primary sector on civis in lesson of human resourse The scientific management of animal livestock is called animal husbandry. It includes breeding,feeding,disease management |
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| 7739. |
The value of acceleration due to gravity is maximum at poles and minimum at equator .why? |
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Answer» The earth is not a perfect sphere, as it is flattened at the poles. As the earth is flattened at the poles, the distance between the core and the pole is less compared to the distance between the core and the equator. That is why g is more at the poles than the equator.Hope you understand!!? Earth is not a perfect square. Due to flattening of earth at poles the radius of earth is minimum at poles and hence the value of g is maximum in poles. On the other hand radius of earth is maximum in equator, hence the value of g is minimum at equator. |
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| 7740. |
In which phylum nerve net is present |
| Answer» | |
| 7741. |
Which technique can be used to separate iron fillings and sulphur ? |
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Answer» Magnetic separation By magnet. Magnetic separation could be separate iron and sulpher Magnetic separation |
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| 7742. |
What is colloid solutions suspension |
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Answer» SUSPENSION:- It is a hetrogenous mixture. It can seen by naked eyes. It can be separated by the filteration process. Its particles settle down when left undisturbed. EG. Chalk water COLLIOD:- It looks like homogenous mixture but actually it is a hetrogenous mixture. It cannot be by naked eyes. It shows Tyndall effect. Its particles always be in motion, they never settle down. EG. Milk |
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| 7743. |
What is cartilage and it functions |
| Answer» It is a type of connective tissue present at the ends of long bone, pinna of ear,nose etc. It\'s function is to provide flexibility and to smoothen the end surface of bone. | |
| 7744. |
Which is the pure substance |
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Answer» A substance which is made of only one kind of matter is known as a pure substance. It cannot be broken down into its constituents by any method A homogeneous material, which contains particles of only one kindhas a definite set of proportions is called a pure substance. For ex. Carbon dioxide, sodium chloride etc. |
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| 7745. |
Types of tissues with their function. |
| Answer» Diversity in living organisms | |
| 7746. |
What is hypotenic solution? |
| Answer» Dilute solution is called hypotonic solution | |
| 7747. |
What is an uniform circular motion |
| Answer» When a baby moves in a circular path and cover equal distance in equal interval of time is called uniform circular motion | |
| 7748. |
Definations and functions of all connective tissues |
| Answer» Blood is a type of connective tissue. Now, let us look at this type of tissue in some more detail. The cells of connective tissue are loosely spaced and embedded in an intercellular matrix. The matrix may be jelly like, fluid, dense or rigid. The nature of matrix differs in concordance with the function of the particular connective tissue.\tIt protects and supports the body.\tThe cells are loosely spaced and embedded in an intercellular matrix.\tThe matrix may be jelly like, fluid, dense or rigid.\tThe nature of matrix differs in concordance with the function of the particular connective tissue. | |
| 7749. |
types of matter? |
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Answer» This is matter state not types There are 6 types of matter which I know are:•Solid •liquid•Gas•Plasma•BEC:Bose-Einstein Condensates•Fermionic Condensates There are five types of matter- solid, liquid, gas, plasma, bose einstien condensate(bec). Matter is of three types.Solid contain brick.Liquid contain petrol.Gas contain air, CO2. 1. Solid 2. Liquid 3.Gas SolidsMatters 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.LiquidMatters 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.GasMatters which have indefinite shape and volume are called gases. For example - air, oxygen, hydrogen, nitrogen, carbon-dioxide, etc. |
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| 7750. |
Whay are the functions of golgi apparatus |
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Answer» Golgi apparatus is also called golgi complex its main function is to store and pack the product. 1.Golgi apparatus store, modifies and pack product into the vesicles.2.it is involved in the formation of lysosomes.3.it is involved in the synthesis of cell wall and plasma membrane |
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