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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.
| 54251. |
Define the types of heterotrophic nutrition |
| Answer» 1.parasitic-organisms which derive food from the body of another living organisms without killing it.Ex:plasmodium,cascuta.2.saprophytic-organisms which feed on dead and decaying organisms. Ex:fungi,bacteria.3.holozoic-organisms which feed on solid food (plant or animals) | |
| 54252. |
Define microcrondia |
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Answer» Mitochondria is right spelling okay???? It is known as power house of the cell which produces ATP(adenosine-tri-phosphate) and ADP(adenosine-di-phosphate ) Spelling mistake in the question It is a cell organell it is also know as power house of the cell |
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| 54253. |
Which type of medium is required for the proper functioning of intestinal juice?why? |
| Answer» Acidic | |
| 54254. |
Who was the second founder of cells |
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Answer» Robert Hooke in 1665 Anton von Leeuwenhoek Robert hook by founding dead cell of tree outer layer (cork) |
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| 54255. |
What are assimilatorypowers, when are they formed |
| Answer» These are ATP and NADPH these are products of light processes | |
| 54256. |
What is combination reaction ?give examples |
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Answer» The reaction in which two or more substance react with each other and form a single product is called combination reaction It is a type of reaction where two or more reactants react to combine to give a single reaction.For example- water is added to quick lime to produce a lot of heat with the formation of calcium hydroxide or slacked lime |
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| 54257. |
Soap and detergent explain |
| Answer» | |
| 54258. |
Balance the chemical reactionCu+HNO3 =Cu(NO3)2+NO+H2O |
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| 54259. |
How is resistance different from resistivity |
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Answer» Unit of resistance is ohmBut unit of resistivity is ohm meter Resistivity is a specific resistance of a conductor whose length is 1metre and area of cross-section is 1square meter |
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| 54260. |
we know elments react to fill their outermost shell but why compounds reactto each other ? |
| Answer» they react to form a new compound... there is double displacement reaction | |
| 54261. |
What is resistivity of tungeston |
| Answer» Tungsten is a metallic element that has the highest melting point of any metal. Tungsten, symbol W on the periodic table, is one of the transition elements on the periodic table. The atomic number is 74. Tungsten resistivity is 52.8\xa0Ωm at 20\xa0°C, however as temperature increases, also does resistivity. | |
| 54262. |
What do you mean by life processor |
| Answer» Life process is a process by which we maintain our life | |
| 54263. |
If a person is sleeping then how can we tell if he is dreaming or not? |
| Answer» By apply slap ,??? | |
| 54264. |
Does silver in solar panel melts because of sun radiation |
| Answer» | |
| 54265. |
Al+fe2o4=al2o3+fe what is balance equation |
| Answer» 8Al+3Fe2O4=4Al2O3+6Fe | |
| 54266. |
Definition of science |
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Answer» Science is study of knowing things unknowingly Science means knowing about what we see and what is present around us Science means something invovative and something creative |
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| 54267. |
How can we easily learn the chemical equations |
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| 54268. |
What is the normal body temperature in humans in centigrade |
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Answer» 37.2 37° C 37°C |
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| 54269. |
Fajaaaaaa |
| Answer» | |
| 54270. |
Algae |
| Answer» Algae are autotrophic organism.They have single cell and all the metabolic activity perform by single cell Ex- cynobacteria | |
| 54271. |
Define ohm law |
| Answer» At constant temperature and physical condition the flow of current is directly proportional to its potential difference | |
| 54272. |
What information is conveyed by a chemical reaction |
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| 54273. |
What are the numbers of water of crystallisation in the following salt copper sulphate |
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| 54274. |
What is procces of chloroplast |
| Answer» Chloroplasts are organelles present in plant cells and some eukaryotic organisms. Chloroplasts are the most important plastids found in plant cells. It is the structure in a green plant cell in which photosynthesis occurs.Chloroplast is one of the three types of plastids. The chloroplasts take part in the process of photosynthesis and it is of great biological importance. Animal cells do not have chloroplasts. All green plant take part in the process of photosynthesis which converts energy into sugars and the byproduct of the process is oxygen that all animals breathe. This process happens in chloroplasts.The distribution of chloroplasts is homogeneous in the cytoplasm of the cells and in certain cells chloroplasts become concentrated around the nucleus or just beneath the plasma membrane. A typical plant cell might contain about 50 chloroplasts per cell. | |
| 54275. |
What are the numbers of water of crystallisation in the following salt in copper sulphate |
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| 54276. |
Find the amount of electric charge contained by 3.9×10to the power 23 electrons?? |
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| 54277. |
Find the amount of electric charge contained by 3.9×10power 23 electrons ?? |
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| 54278. |
An artificial satellite circles around the earth at a height where the gravitational force is 1/4 th |
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| 54279. |
Photosynthesis in cactus? |
| Answer» In dessert plants the stomata are open at night. They take in CO2 at night, and is stored in the form of an intermediate (converted to an acid), and is used during the day for photosynthesis,(when the stomata are closed). Everything else is the same, except the fact that they have chlorophyll in their stem. | |
| 54280. |
What is work done |
| Answer» If an object displaces in the position of their virtue then work is done | |
| 54281. |
Define static electricty |
| Answer» Static electricity is the electricity in which the electric charges remain at rest , they do not move. | |
| 54282. |
The process of digestion in mouth |
| Answer» The mouth has teeth and tongue. Salivary glands are also present in the mouth. The tongue has gustatory receptors which perceive the sense of taste. Tongue helps in turning over the food, so that saliva can be properly mixed in it.Teeth help in breaking down the food into smaller particles so that swallowing of food becomes easier. There are four types of teeth in human beings. The incisor teeth are used for cutting the food. The canine teeth are used for tearing the food and for cracking hard substances. The premolars are used for coarse grinding of food. The molars are used for fine grinding of food.Salivary glands secrete saliva. Saliva makes the food slippery which makes it easy to swallow the food. Saliva also contains the enzyme salivary amylase or ptyalin. Salivary amylase digests starch and converts it into sucrose. | |
| 54283. |
What do you mean by respiration |
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Answer» The process of taking on oxygen and giving out carbon-dioxide is known as respiration The food we take in, in the form of carbs, proteins, vitamins and etc gets digested and gets converted into glucose. This glucose in the cells of our body reacts with oxygen hence oxidation of glucose takes place. This reaction releases water, carbon dioxide, and energy is released. This process is known as respiration. The process of aquiring oxygen from out side the body and to use it in the process of breaking down of food resources for cellular needs is called respiration |
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| 54284. |
What is chemical combination |
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Answer» Combining of two substance to form a new substance Chemical reaction is a process in which new substances are produced with new properties |
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| 54285. |
What function of mouth |
| Answer» To chew food and help to breakdown of carbohydrate | |
| 54286. |
Is there anybody going to kota |
| Answer» Yes i can | |
| 54287. |
Mention carecteristic of images produce by a plane mirror |
| Answer» 1. Image is virtual.2. Image is laterally inverted3. Image is formed behind the mirror.4. Distance of object and mirror is same as distance of mirror and image. | |
| 54288. |
Difine electric curreny |
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| 54289. |
Divine electric circuit |
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Answer» Flowing of current in a closed path A continous and closed path of an electric current is called electric circuit |
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| 54290. |
Define the mode of nutrition? |
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Answer» Mode of nutrition means method of obtaining food by an organism. There are mainly two modes of nutrition:\tAutotrophic mode of nutrition\tHeterotrophic mode of nutritionAutotrophic mode of nutrition: Autotrophic nutrition is that mode of nutrition in which an organism makes (or synthesizes) its own food from the simple inorganic materials like carbon dioxide and water present in the surroundings (with the help of sunlight energy). Those organisms which can make their own food from carbon dioxide and water are called autotrophs. Example: all green plants, autotrophic bacteria. Autotrophs make their food by photosynthesis.Heterotrophic mode of nutrition: Heterotrophic nutrition is that mode of nutrition in which an organism cannot make (or synthesizes) its own food from simple inorganic materials like carbon dioxide and water, and depends on other organisms for its food. Those organisms which cannot make their own food from inorganic substances like carbon dioxide and water, and depends on other organisms for their food are called heterotrophs. Example: all the animals (man, dog, cat, lion, etc.), most bacteria and fungi. Mode of nutrition means by which way the organism intake their food. There are two modes of nutrition Autotrophic Hetrotropic |
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| 54291. |
What is ph value of milk and curd |
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Answer» Milk - 6.4 - 6.8(cow\'s milk)Curd - 4.5 - 5.5(if made from cow\'s milk) Fresh milk has a pH of 6.7 whereas cow’s milk has a Ph between 6.4 and 6.8When milk changes into curd (yogurt), its pH value decreases. This\xa0is because, during curd formation, Lactic acid is produced which make it acidic. pH of curd is between 4.5 to 5.5. You can observe that curd pH level are lower than that of milk because of generation of Latic acid in curd. |
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| 54292. |
What is phone value of milk and curd |
| Answer» Sorry not phone it\'s ph | |
| 54293. |
What is athane? |
| Answer» | |
| 54294. |
Black coating on silver |
| Answer» Silver article reacts with sulphur compounds such as H2S present in air. The phenomenon is called corrosion. For silver particularly, it is called tarnishing of silver.The black substance form in this reaction is silver sulphide (Ag2S).2 Ag(s) + H2S(g) → Ag2S(S) + H2(g) | |
| 54295. |
Write two observations you would make when quick lime is added to water? |
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Answer» The two observations are as follows:1.Formation of calcium hydroxide.2.Release of heat energy It starts boiling and heat is produced Sorry starts boiling 1 A hissing sound is observed .2 The mixture stars boiling and lime water is obtained. It is also given in Ncert |
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| 54296. |
Name the substrales for the following enzyme:- (A) Trypsin (B) Amylase (c) pepsin (d) lipase. |
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Answer» (B) Starch (C) Protein (A) Protein (B) Protein (C) Starch |
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| 54297. |
State the function of the following in the alimentary card:(A) liver. (B) Gall bladder (c) villi |
| Answer» A) liver produces bile juice. ,B) bile is stored in gall bladder. C) villi increases the area of absorption and all nutrition through blood capillaries goes to blood. | |
| 54298. |
Which has higher ph value, 1M Hcl or 1M NaoH solutions? |
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Answer» 1M NaOH has higher ph as it has less H+ion concentration. NaOH has higher PH value NaOH has higher ph because it is basic The pH of acidic solution varies from 0-6.9, while that of basic solution varies from 7.1-14. Hence, the lower is the pH value, more is the acidic strength of a substance. Conversely, more is the pH, more is the basic character of the substance. Thus, out of HCl and NaOH, NaOH will have higher pH. |
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| 54299. |
On what chemical law . balancing of chemical equation is based |
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Answer» Law of conservation of mass The law of conservation of mass. The law states that mass can neither be created nor be destroyed by a chemical reaction Chemical reactions follow the law of conservation of mass, meaning that the total mass of the reactants has to be equal to the total mass of the products. The number of each type of atom must also be conserved from reactants to products. Atoms cannot be created or destroyed, so if the equation cannot be balanced, there must be another reactant or product involved. Uncovering these missing materials can shed light on how the reactions take place, how to get a better yield of the products, or what waste products may be generated. |
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| 54300. |
Explain the following with reason:-Silver become blackish when exposed to air. |
| Answer» a layer of silver sulphide appears on the surface | |