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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.
| 7301. |
Question : What type of leaf does dicot plant have? |
| Answer» SOLUTION :DORSIVENTRAL. | |
| 7303. |
Question : What type of fibres are found in connective tissue matrix? |
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Answer» Collagen |
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| 7304. |
Question : What type of equilibrium do maculae maintain ? |
| Answer» SOLUTION :STATIC EQUILIBRIUM | |
| 7305. |
Question : What type of digestion of food takes place in all protozoan protists ? |
| Answer» SOLUTION :INTRACELLULAR | |
| 7306. |
Question : What type of covering do the cells have? Name the chemical component. |
| Answer» Solution :Cells have CELL walls GENERALLY made of CHITIN, a nitrogen CONTAINING polysaccharide. | |
| 7307. |
Question : What type of conditions are created by leg-hemoglobin in the root nodule of a legume? |
| Answer» Solution :Leghaemoglobin produces anaerobic situation in root nodule of leguminous plants. It is an oxygen SCAVENGER. It receives `O_2` and prevents NITROGENASE from its adverse effect. So it becomes easy for nitrogenase to FIX atmospheric nitrogen into AMMONIA. | |
| 7308. |
Question : What type of connective tissue is damaged when you cut your index finger?. |
| Answer» Solution :The AREOLAR connective tissue is DAMAGED when finger GETS CUT. | |
| 7309. |
Question : What type of circulatory system is found in cockroach? |
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Answer» LACUNAR |
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| 7310. |
Question : What type of cells are present in the shells of nuts or stones of fruits? |
| Answer» SOLUTION :SCLEREIDS ( SCLERENCHYMA CELLS). | |
| 7311. |
Question : What type of cell organisation do you observe in the members of Kingdom Protista ? |
| Answer» SOLUTION :EUKARYOTIC CELL ORGANISATION. | |
| 7312. |
Question : What type of body plan do the following animals have :hydra, sponge, flatworms, roundworms, jellyfish, earthworm, spiders, sea horse, frog, sparrow? |
| Answer» Solution :(i) Cell aggregate plan-sponge, (ii) Blind sac plan–Hydra, flatworms, JELLY fish, (iii) Tube-within-a-tube plan-round WORMS, earthworm, SPIDERS, SEA horse, frog,sparrow. | |
| 7314. |
Question : What are polysomes? |
| Answer» Solution :During PROTEIN synthesis, the ribosomes are HELD together by MRNA and FORM the POLYSOMES. | |
| 7315. |
Question : Why the cells of sclerenchyma and tracheids become dead? |
| Answer» Solution :TRACHEIDS & mature Sclerenchyma cells become dead due to the excessive secondary cell wall THICKENING composed of lignin. Due to this, the cell wall becomes HARD & IMPERMEABLE to water & other components essential for cell metabolism. Eventually, the cytoplasm is last, leaving lumen in CENTRE. | |
| 7316. |
Question : What term is given to the arrangement of leaves on the stem? |
| Answer» SOLUTION :PHYLLOTAXY | |
| 7317. |
Question : What taxonomic aid gives comprehensive information about a taxon? |
| Answer» Answer :A | |
| 7318. |
Question : What system of nervous system control the straited muscles? |
| Answer» SOLUTION :VOLUNTARY NERVOUS SYSTEM. | |
| 7319. |
Question :What symptoms are shown by plants due to phosphorus deficiency? |
| Answer» Solution : PREMATURE leaf fall, purple anthocyanin pigmentation, OLDER leaves EXHIBIT DEFICIENCY symptoms FIRST. | |
| 7320. |
Question : What structural and functional attributes must a cell have to be called a living cell ? |
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Answer» Solution :All living organisms are made up of cells which form tissue, organ and organ SYSTEM. So forms constitutional elements of living organisms. Cells possess property of regeneration. It forms new living organism. Moreover, it forms constitutional unit. That PERFORMS definite functions in different parts. It shows division of labour eg. cell organelle show specific character in their functions. (a) Cell membrane : Structure : It is made up of phospho lipid. Function : It shows SELECTIVE permeability. (b) Cytoplasm : Structure : It is a combination mixture of organic, inorganic material fluid. Function : As a site of metabolism provides material and energy for growth and reproduction. (c) Nucleus : Structure : It possesses DNA, nucleus, nuclear membrane, nucleoli, chromatin. Function : It stores / transports genetic information of cell for reproduction and growth. (d) Golgi bodies : Structure : It is a flat, disc like, parallely arranged BAGS like structure. Function : If functions as packaging material and for inter cellular transport of synthesized materials. (e) Endoplasmic Reticulum : Structure : RER/SER sisterni / tubes / vesicles. Function: Functions for synthesis of protein and steroid substances. (f)Mitochondria : Structure : Double membrane bound structure, inner membrane possesses cristae. Function : It is a power house of the cell, cellular energy is produced as ATP. (g) Lysosomes : Structure : It is a vesicle having single membrane bound layer. It is made up from golgi bodies. Function : If possesses various types of Hydrolysing enzymes (h) Vacuoles : Structure : It is a membrane bound space found in cytoplasm that contains cellular fluids and other materials. Function : The tonoplast facilitates the transport of a number of ions and other materials against concentration gradients into the vacuole. |
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| 7321. |
Question : What strategy would you suggest if a person wants to evolve a pureline in an plant? |
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Answer» Cross-breeding |
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| 7323. |
Question : What spongocoel? |
| Answer» SOLUTION :The central cavity of the SPONGES is CALLED spongocoel. | |
| 7324. |
Question : What special anatomical features are displayed by leaves of C_(4) plants ? How do they provide advantange over the structure of C_(3) plants ? |
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Answer» Solution :Kranz anatomy : It is a SPECIAL characteristic of `C_(4)` plants. Two typees of chloroplaste are seen in leaves of `C_(4)` plants. Chloroplast WITHOUT GRANA in BUNDLE sheath cells and chloroplast with grana in MESOPHYLL cells. `C_(4)` cycle existsin mesophyll cell while `C_(3)` pathway runs in bundle sheath cells. `C_(4)` plants function even if temperature and concentration of `O_(2)` ishigher. In comparison of `C_(3)` plants, `C_(4)` pathway is seen in many monocot plants like maize, sugarcane and milles. |
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| 7325. |
Question : What solute is normally present in the body to estimate GFR in humans? |
| Answer» Solution :Creatinine. Some of it is SECRETED but the quantity PRESENT is very LOW and its clearance is a MEASURE of estimating glomerular filtration RATE (efficiency of the kidney). | |
| 7326. |
Question : What shows the fluidity of cell membrane ? |
| Answer» Solution :SIDEWAY movements of PHOSPHOLIPID and some INTEGRAL PROTEIN molecules. | |
| 7327. |
Question : What should be the pH and salinity of freshwater used for aquaculture? |
| Answer» Solution :PH of the freshwater should be around NEUTRAL and SALINITY below 5ppt. | |
| 7328. |
Question : What should be remembered in the matter of Transport/movement ? |
| Answer» Solution :When we talk of the MOVEMENT of SUBSTANCES we FIRST need to define what kind of movement we are TALKING about and also what substances we are looking at. | |
| 7329. |
Question : What shortnotes on the functions of the following hormones : (a) Parathyroid hormone (PTH) , (b) Thyroid hormones, (c ) Thymosins (d) Androgens, (e ) Estrogetns , (f) Insuling and Glucagon |
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Answer» Solution :(a) Parathyorid hormone (PTH) Its main function is to increase the level of calcium in blood. It promotes the reabsorption of calcium from nephrons and also, promotes the absorption of calcium from digrested food. Hence, It plays an important ROLE in MAINTAINING calcium balance in the body ? (B) Thyroid hormones Throxine, triiodothyronin, and thyrocalcitonin are secreted by the thyroid galnds. THYROXIN maintains the basall metaobolic rate of the body and regulates the carbohydrate, fat and protein metabolism. Water and electrolyte balance of also maintained by throid hormones. Thyrocalcitonin or calcitonin lowers calcium level in blood plasma. It plays a significant role in calcium levels along with parathyroid hormone. (c ) Thyosins Thymosin is secreted be the thymusgland. Major role in immunity and also. Thymosins also help in the development of sex glands. (d) Testosterone is a male sex harmone that regulates the developement of secondary sex characteristics such as facial hair, hoarse voice, development of reproductive organm etc. ANDROGENS also regulate the development, mautration and functions of various male accessory organs such as epididymis and prostate glands. It stimulates spermatogenesis and formation of mature sperms. It also influences male sexual beheviour. (e) Estrogens Estrogen is the female sex hormone that controls the development of secondary sex characteristics such as enlargements of breasts and development of female reproductive organs. If plays a role in the development, growth and maturation of female secondary characteristics . It also helps in the developmentof growing ovarian follicles. (f) Insulin and Glucagon They regulate the blood glucose level in the body. `alpha`-cells secrete glucagon that maintain a normal blood glucose level inm the body, whereas `ÃŽÂ^(2)`-cells secrete insulin that regualtes the storage of glycogen in the liver. Function of insulin (conversion of glucose to glucogen). The rapid conversion of glucose from the blood to glycogen in heptoytes and adipocytes results into a decreased glucose level. Insulin also prevents the formation of glycose from non-carbohydrate substance such as proteins and fats. So, it acts as a regulatorof carbohydrate metabolism. Function of glucagon- The main function of the glucagon is to increase the level of glucose when there is a deficiency of glucose in the body. This process is known as glycogenolysis. |
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| 7330. |
Question : What shield-shaped single cotyledon of monocots is called? |
| Answer» SOLUTION :SCUTELLUM | |
| 7331. |
Question : What role does thromboplastin play? |
| Answer» SOLUTION : It CONVERTS PROTHROMBIN to THROMBIN. | |
| 7332. |
Question : What role do deuteromycetes play in the environment? |
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Answer» Solution :Deuteromycetes or Fungi Imperfecti: The fungi belonging to this group LACK sexual reproduction and are called as Deuteromycetes or imperfect fungi . A large number of speceis live as saprophytes in soil and many are PLANT and animal parasites. Parasexual cycle operates in this group of fungi . This brings GENETIC variation among the species. 1. PRODUCTION of Organic ACID : 2. Production of enzymes3. Harmful activities |
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| 7333. |
Question : What role cohesion and adhesion play in xylem transport?(a) Like transpiration, they create a tension(b) Like root pressure, they create a positive pressure(c) Like sugars, they cause water to enter xylem(d) They create a continuous water column in xylem |
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Answer» LIKE transpiration, they create a tension |
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| 7334. |
Question : Whatprovides additionalstffness topenisin many mammals ? |
| Answer» SOLUTION :RODENTS .,reccoonsealrusesand manyothermammalshavebonecalledBaculumin thepenisITplaysanadditional roletostiffenthe PENIS | |
| 7335. |
Question : What physiological circumstances lead to erythroblastosis foetalis ? |
| Answer» Solution :It occurs due to RH-incompatibility between `Rh^-` pregnant MOTHER and `Rh^(+)` FOETUS DEVELOPING in her uterus. | |
| 7336. |
Question : What percentage of the living species of animals is threatened? |
| Answer» SOLUTION :TEN PERCENT. | |
| 7337. |
Question : What part of the plant would show the following: (a) Radial vascular bundle (b) Polyarch xylem (c) Well developed pith |
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Answer» Solution :(a) RADIAL VASCULAR bundle : Xylem and phloem are located at different RADII in root. This type of structure of vascular bundle is CALLED radial vascular bundle. (b) Polyarch xylem : When MANY groups of xylem tissue are located then it is called Polyarch condition. This is a specific characteristic of monocot root. (c) Well developed pith: Well developed pith is made up of parenchymatous cells having intercellular spaces in dicot stem and monocot root |
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| 7338. |
Question : What part of sunlight is most suitable for photosynthesis ? |
| Answer» SOLUTION :Blue and red REGIONS of the LIGHT SPECTRUM are the most effective in photosynthesis. | |
| 7339. |
Question : What P indicates in ECG? |
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Answer» END of ATRIUM SYSTOLE |
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| 7340. |
Question : What of the following are true (T) or false (F) ? (a) The plasma membrane has rigid structure. (b) Membrane are useful for compartmentalisation in cells. (c) Solid particle are ingested by pinocytosis. (d) All molecules can pass easily through a biomembrane if they are water soluble. (e) ATP is required for active transport. (f) Sodium-potassium pump help to transport Na^(+) ions and K^(+) ions in both directions across a membrane. |
| Answer» SOLUTION :TRUE : (b), (E) False : (a), (C), (d), (F). | |
| 7341. |
Question : What of the following does not happen in the bright light? |
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Answer» SIZE of the PUPIL INCREASES |
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| 7342. |
Question : What observable features in Trypanosoma would make you classify it under Kingdom Protista? |
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Answer» Solution :Observable features in TRYPANOSOMA are : (i) Unicellular, flagellum with basal granules (ii) Well-developed nucleus LIKE eukaryotes (iii) It has CENTRALLY LOCATED nucleus (iv) Method of reproduction is asexual (V) Reserve food material in the form of granules. 
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| 7343. |
Question : What occupies the space between the cell wall and the shrunken protoplast in plasmolysed cell? |
| Answer» SOLUTION :The external solution, the CELL wall is freely PERMEABLE to SOLUTIONS, | |
| 7344. |
Question : What occupies the space between the cell wall and the shrunken protoplast in the plasmolysed cell ? |
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Answer» Solution :When the cell (or tissue) is placed in an isotonic solution, there is no net flow of water towards the inside or outside. If external solution balances the osmotic pressure of the cytoplasm it is said to be isotonic. When water flows into the cell and out of the cell and are in EQUILIBRIUM, the cells are said to be flaccid. Plasmolysis : The process of plasmolysis is usually reversible. When the cells are placed in a hypotonic solution, water DIFFUSES into the cell causing the cytoplasm to build up a pressure against the wall, that is called turgor pressure. The pressure exerted by the protoplasts due to entry of water against the rigid walls is called pressure potential `Psi_p`. (`Psi_P` s positive value) Because of the rigidity of the cell wall, the cell does not rupture. This turgor pressure is ultimately responsible for enlargement and EXTENSION GROWTH of cells. |
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| 7345. |
Question : What observable features in Trypanosoma would make you classify it under kingdom-Protista ? Discuss cell structure of Trypanosoma also discuss its different strain in brief. |
| Answer» Solution : UNICELLULAR and eukaryotic. It REPRODUCES by binary fission DETAILS refer .Zooflagellata. of Kingdom PROTISTA. FIG. 12 Chapter-2 | |
| 7346. |
Question : What name is given to bacteria, that can live in extreme hot sulphur springs? |
| Answer» SOLUTION :THERMOACIDOPHILES. | |
| 7347. |
Question : What name is given to a virus which infects bacteria ? |
| Answer» SOLUTION :BACTERIOPHAGE | |
| 7348. |
Question : What might be the effect on a person whose diet has less iron content? |
| Answer» Solution : A person whose DIET has less iron CONTENT will become aunaemic. The haemoglobin content of the blood will be less. The volume of oXygen caried by RBCs gets reduced. He/she may experience tiredness, WEAKNESS, fatigue ETC. In order to OVERCOME this deficiency one has to take iron rich diet | |
| 7349. |
Question : Why are sparrows listed as endangered species? |
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Answer» Solution :The extinction of the dinosaurs is an enigma that has captivated scientists for well over a CENTURY. We find the fossilized remains of gaint reptiles all over the earth. Yet we do not see any of the creatures alive today. If sparrows are not there, the population of BIRDS of prey MAY also be affected. Apart from this, every constitue of an ecosystem is important from an ant to an ELEPHANT. We are eliminating SPECIES by species which are important linkswhich make the web of life. Today it's these species are getting extinct. |
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| 7350. |
Question : What makes the synovial joints freely movable ? List any four types of synovial joints. |
| Answer» | |