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.
| 301. |
Question : What is tissue culture? |
| Answer» Solution :The process in which tissues or organisms can be GROWN or CULTURED artificially in laboratory conditions using a part of the TISSUE(s) from the ORGANISM is called tissue culture. | |
| 302. |
Question : What is Tidal energy? What are it's advantages? |
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Answer» Solution :The energy obtained from the movement of WATER, due to ocean tides is called tidal energy. Tides are the rise and fall of sea LEVEL, caused by the COMBINED effects of the gravitational force. A tidal stream is a fast flowing body of water created by tides. Turbines are placed in tidal STREAMS. When the tides hit the turbine, the turbine rotates and converts the tidal energy into electric energy. Advantages: • It does not produce any pollution. • It does not use any fuel and does not produce any waste. •Tidesarepredictable, so tidal energy can be produced at anytime. • Water is denser than air, and therefore can generate electricity at lower speeds than windturbines. |
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| 303. |
Question : What is the zoological name of Indian peacock, the national bird? |
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Answer» PASSER domesticus |
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| 304. |
Question : What is the ultimate source of energy for biomass, wind and ocean thermal energy ? |
| Answer» Solution :Sun /Solar ENERGY is the ULTIMATE source of energy for biomass, wind and OCEAN THERMAL energy. | |
| 305. |
Question : What is the triple fusion in higher plants ? |
| Answer» Solution :In FLOWERING plants, one of the MALE gamete fuses with the two polar nuclei. This process is KNOWN as triple fusion. It results in formation of PEN (Primary ENDOSPERM Nucleus). | |
| 306. |
Question : What is the thread-like basic structural element of a fungus? |
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Answer» filament |
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| 307. |
Question : What is the study of fossils called ? |
| Answer» SOLUTION :PALAEONTOLOGY. | |
| 309. |
Question : What is the similarity in reproduction between amoeba and bacteria ? (1) They are multicellular. (2) They are unicellular. (3) They only undergo sexual reproduction. (4) They only undergo asexual reproduction. (5) They mainly undergo binary fission. |
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Answer» (1 ), (3) and (4) |
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| 310. |
Question : What is the significance of the peripheral nervous system ? Name the components of this nevous system and distinguish between the origin of the two. |
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Answer» Solution :The communication between the central nervous SYSTEM and the OTER PARTS of the body is facilitated by the paripheral nervous system. Craninl nerves and SPINAL nerves are its main components. Cranial nerves arise from the brain, spinal nerves arise from the spinal cord. |
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| 311. |
Question : What is the significance of meiosis? |
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Answer» Solution :(1) The process of cell division is same in unicellular organisms to multicellular organisms like human beings . (2) Cell division is the process that transforms a human fertilized egg into a BABY in nine months and into an adult in the next 20 years . (3) Cell division and function in a multicellular organism is highly regulated . It occursonly when there is a need for it. (4) Cells in some organs, such as heart and brain of an individual never divide. (5) On the other hand bone marrow cells actively divide to produce red blood cells, which have a short life span (120 days ) in the body . (6) For example , if you cut your finger and bleed , soon a blood clot forms to stop the bleeding. (7) This brings in various chemicals to the SITE that stimulate skin cells to divide and heal the wound. (8) Cell division ceases or stops as the wound is completely healed. (9) In contrast, cancer cells do not respond to such growth regulating factors and continuously divide at the expense of NORMAL cells . Thus ultimately in cell division. (10) So it BECOMES important to understand the processes involved in cell division . |
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| 312. |
Question : What is the significance of Archaeopteryx in evolution? |
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Answer» SOLUTION :ARCHAEOPTERYX PROVIDES evidence of evolution of birds from reptiles and its STUDY SHOWS that: (i) birds and reptiles had a common ancestor. (ii) birds have evolved from reptiles. |
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| 313. |
Question : Whatis the shapeof RBCinhumanblood? |
| Answer» SOLUTION :The SHAPE of RBC in HUMAN blood is biconcave and disc-shaped. | |
| 314. |
Question : What is the sequence of species through which the organic molecules in a community pass is called? |
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Answer» PYRAMID of energy |
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| 315. |
Question : What is the sequence of species through which the organic molecules in a community pass called? |
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Answer» Pyramid of energy |
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| 316. |
Question : What is the role of the seminal vesicles and the prostate gland. |
| Answer» Solution :The secretion from seminal vesicles and prostate glands LUBRICATE the SPERMS and provide a FLUID medium for easy transport the secretions also provide nutrient in the from of fructose CALCIUM and some enzymes. | |
| 317. |
Question : What is the role of the seminal vesicles and the prostate gland? |
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Answer» Solution :Seminal vesicles are a pair of thin-walled muscular elongated SACS which secrete fluid for NOURISHMENT of sperms. PROSTATE glands also produce fluid which is released in the urethra along with secretion of seminal vesicle and helps in sperm mobility. The secretion of these accessory glands together with sperm is called SEMEN. It AFFECTS the vaginal pH so that sperms move smoothly inside the vagina. |
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| 318. |
Question : What is the role of the seminal vesicles and the prostate gland ? |
| Answer» SOLUTION :The secretion of the SEMINAL vesicles and the prostate gland MAKES transport of sperms EASIER and provides NUTRITION to the sperms. | |
| 319. |
Question : What is the role of the acid in our stomach? |
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Answer» SOLUTION :(i) The acid (hydrochloric acid) secreted inside the stomach makes the medium acidic which is necessary for the ACTIVATION of the ENZYME pepsin. It converts inactive propepsin into ACTIVE pepsin. (ii) Another function of hydrochloric acid is that it kills any bacteria which may enter the stomach along with food. |
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| 320. |
Question : What is the role of the acid in our stomach ? |
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Answer» Solution :The HYDROCHLORIC acid in our stomach facilitates following things : (i)Itcreates an acidic medium for the ACTION of proteolytic enzyme pepsin. (ii) Kills harmful bacteria present in the food. (iii)Inactivates salivary amylase. (IV)Prevents fermentation of food. (v)HCI converts INACTIVE pepsinogen into active pepsin . |
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| 321. |
Question : What is the role of seminal vesicles and prostațe gland ? |
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Answer» Solution :Role of seminal vesicles. These glands secrete VISCOUS secretions, which contain FRUCTOSE and prostaglandins. The fructose is source of energy for sperm and prostaglandins STIMULATE uterine CONTRACTION and thus may help the sperm to MOVE towards the female.s oviduct. Role of prostate gland. It secretes an alkaline milky fluid that aid in sperm motality. The fluid contains small amount of citric acid, some lipids and a few enzymes. It also contains bicarbonate ions which give the semen its alkaline pH. |
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| 322. |
Question : What is the role of saliva in the digestion of food? |
| Answer» SOLUTION :Saliva contains an enzyme called salivary amylase which DIGESTS the STARCH (complex MOLECULE) present in food into SUGAR (maltose). | |
| 323. |
Question : What is the role of saliva in the digestion of food ? |
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Answer» Solution :Role of saliva 1. Saliva lubricates the food and facilitates MASTICATION . 2 . Saliva binds the food MOLECULES together . 3. Saliva contains ptyalin (salivary AMYLASE) enzyme which ACTS on starch , glycogen and other carbohydrates to form maltose . |
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| 324. |
Question : What is the role of reproduction ? |
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Answer» SOLUTION :(i) PROPAGATION of SPECIES (II) EVOLUTION of species. |
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| 325. |
Question : Write the information you got from your teacher about role of different parts in development of embryo.Chorion,placenta,amnion,alantois are the embryonic membranes.Write their functions in a tabular form. |
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Answer» Solution :(1) Placenta is a tissue FORMED by the cells from the embryo and the mother. (2) It is formed at around 12 weeks of pregnancy and becomes an important STRUCTURE for nourishment of the embryo . (3) Placenta is a disc which is embedded in the uterine wall . It contain villi on the embryo's side are BLOOD spaces. (4) On the mother's side are blood spaces. (5) This provides a large surface area for diffusion of glucose, OXYGEN and other NUTRIENTS from the mother of the embryo. |
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| 326. |
Question :What is therole ofoxyheamoglobinafterreleasing molecularoxygenin thetissues? |
| Answer» SOLUTION :Amino group of reduced haemoglobin COMBINES with`CO_(2)`forming CARBAMINOHAEMOGLOBIN to transport `CO_(2)` | |
| 327. |
Question : What is the role of parathorone? |
| Answer» SOLUTION :The PARATHORMONE regulates calcium and phosphorus metabolism in the body. They act on bone, kidney and intestine to MAINTAIN blood calcium LEVELS. | |
| 328. |
Question : What is the role of Ministry of Environment and Forests ? |
| Answer» Solution :Ministry of Environment and Forests in involved in planning, inducting and INCREASING awarenessabout environment and forests through VARIOUS programs SINCE 1985. | |
| 329. |
Question : What is the role of intercostal muscles in respiration and where are these found? |
| Answer» Solution :INTERCOSTAL muscles are found in between the ribs. Their contraction and relaxation CHANGES the volume of THORACIC cavity so that air can enter and leave the LUNGS. | |
| 330. |
Question : What is the role of insulin ? |
| Answer» SOLUTION :METABOLISM of SUGAR. | |
| 331. |
Question : What is the role of fat in the cause of atherosclerosis ? |
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Answer» SOLUTION :The atherosclerosis is the CONDITION, where the ARTERIES become narrowed and hardened, due to the build up of plaque (fatty streak to a fibrous form) around the artery wall and leads to the narrowing of blood vessels. It leads to Ischemia (deficient blood supply to heart muscle) and MYOCARDIAL infarction (death of the heart muscle tissue) occur. This disease disrupts the flow of blood around the body, POSING the risk of serious complications. |
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| 332. |
Question : What is the role of decomposition in the ecosystem ? |
| Answer» Solution :They decompose dead REMAINS of PLANTS and animals and their waste organic products into simple INORGANIC substances which are released into the ATMOSPHERE for reuse by the plants . THUS , they help in recycling of materials . | |
| 333. |
Question : What is the role of decomposers in an ecosystem? |
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Answer» CONVERTS inorganic ELEMENTS in SIMPLE FORM |
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| 334. |
Question : What is the role of acid in our stomach ? |
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Answer» SOLUTION :FUNCTIONS of HCl (i) It provides acidic medium . It is required for the action of enzymes . It changes the PH of FOOD from almost neutral to acidic medium (from pH 7 to 2 ). (ii) ACTIVATES the proenzyme propepsin into active pepsin . (iii) Destroys the bacteria present in food. |
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| 335. |
Question : What is the relationship between mutation and variation ? |
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Answer» SOLUTION :Mutation and variation are the two events involved in the process of EVOLUTION. Mutation ARISES due to errors occuring in DNA during replication or exposure to ultraviolet RAYS or chemicals. Mutation leads to variation. It BRINGS changes in a single individual. |
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| 336. |
Question : What is the relationship between water-fern (Azolla) and nitrogen-fixing cyanobacteria (Anabaena) called? |
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Answer» SYMBIOTIC |
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| 337. |
Question : What is the relation between heart and lungs ? |
| Answer» SOLUTION :HEART sends impure blood to LUNGS , and lungssendsback OXYGENATED PURE blood to heart. | |
| 338. |
Question : What is the reason for the long neck of a camel? |
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Answer» Increase in the NUMBER of CERVICAL verte brae |
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| 339. |
Question : What is the range of normal systolic and diastolic blood pressure ? |
| Answer» SOLUTION :SYSTOLIC - 120 mm of HG. Diastolic - 80 mm of Hg. | |
| 340. |
Question : What is the purpose of water harvesting ? |
| Answer» SOLUTION :PURPOSE of water harvesting is : To COLLECT rainwater, ALLOW it to percolate and thereby INCREASE the ground water level. | |
| 341. |
Question : What is the purpose of environmental Conservation Act, 1986 ? |
| Answer» Solution :Purpose of the Environment Conservation Act, 1986 is to control the pollution and PUNISH the persons or INSTITUTES harming the environment. | |
| 342. |
Question : What is the process of translocation of food in plants. |
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Answer» Solution :Transport of food in plants The food PREPARED in the green leaves of plants is transported through phloem in the FORM of SUCROSE solution to storage organs of roots, seeds and fruits. This process is called translocation. This process REQUIRES energy. It is provided by ATP molecules. This increases the osmotic pressure in the tissue causing water to move into it. This pressure MOVES the material in the phloem to tissues which have less pressure. |
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| 343. |
Question : What is the primary toxic waste in our blood filtered by the kidneys ? |
| Answer» Solution :UREA and uricacid are the primary TOXIC WASTES in ourblood FILTERED by the kidneys. | |
| 344. |
Question : What is the phenotypie ratio of a dihybrid cross in F2 generation. |
| Answer» SOLUTION :`9:3:3:1` | |
| 345. |
Question : What is the physical method of determining of age of fossils ? |
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Answer» Solution :Determination of AGE of fossils (dating of fossils) Once the fossils are unearthed palaeontologists try to determine their position in the historical sequence of life. The absolute age of fossil is difficult to calculate and older the fossil, less precise is the calculation. Physical method. Before we begin to determine the age of fossil, we have to gain some perspective about the age of earth. The age of the earth is estimated to be near about 300 CRORE years. This life SPAN of earth has been divided into six principal eras. Out of these, three eras are subdivided into smaller span known as periods or EPOCHS. |
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| 346. |
Question : What is the other name of food pipe? |
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Answer» Larynx |
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| 347. |
Question : What is the normal range of haemoglobin contentin human beings ? |
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Answer» SOLUTION :MALE - 14 to 16 g per mL of blood Female - 12 to 14 g per 100 mL of blood is the normalrange ofhaemoglobin CONTENT in humanbeings. |
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| 348. |
Question : Whatis the needfor contracption ? |
| Answer» SOLUTION :CONTRACEPTION is used to prevent PREGNANCY, to check POPULATION growth. | |
| 349. |
Question : What is the need for plants to have both sexual and asexual means of reproductions? |
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Answer» Solution :1] Asexual Reproduction: By asexual reproduction a large number of plants can be produced by a SMALL vegetative part in a short span of time. 2] Genetically identical plants can be obtained by asexual reproduction. 3] Vegetative parts of plants can withstand adverse CLIMATIC conditions and can germinate into a new plant on RETURN of FAVOURABLE conditions. 4] Reproduction through sexual means is uncertain hence asexual means is important. 1] Sexual Reproduction: By sexual methods, plants will have genetic variations which results in higher yields as the plant adapts against all odds. 2] The primary advantage of sexual reproduction is that itencourages the survival of a species. 3] Sexual reproduction creates genetic diversity within a species. 4] In sexual reproduction there is a natural level of disease resistance throughout the species. 5] Genetic VARIATION can lead to evolutionary advancements. |
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| 350. |
Question : What is the need for a system of control and coordination in an organism? |
| Answer» Solution :It is necessary that various organs of the BODY of an organism work TOGETHER in a proper MANNER to produce proper reaction to a STIMULUS. | |