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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.
| 8201. |
Question : Slow respiration, slow pulse rate and constriction of pupil occurs due to drug addiction of |
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Answer» MORPHINE and OPIUM |
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| 8202. |
Question : Slow rate of decomposition of fallen logs in nature is due to |
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Answer» Anaerobic ENVIRONMENT AROUND them |
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| 8203. |
Question : Sliding filament theory can be best explained as |
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Answer» actin and MYOSIN filaments do not SHORTEN but rather SLIDE PAST each other |
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| 8204. |
Question : "SLF" (I) Seaweed liquid fertilizer contains cytokinin. (II) Seaweed based fertilizers are made from kelp. (III) Liquid seaweed fertilizer is not an organic product. (IV) It forms long, cross-linked polymers in the soil. |
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Answer» I, II and III only |
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| 8205. |
Question : Slectthe correct explanation for the tabels A, B, C and D |
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Answer» A represents the FERTILISED zygote. |
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| 8206. |
Question : Sleeping pills contain :- |
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Answer» Benzodiazepines |
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| 8207. |
Question : State the principle of 'gel electrophoresis' and mention two applications of this technique of biotechnology |
| Answer» SOLUTION :a) Techmique where charged MOLECULES are separated on their molecular WEIGHT, gel acts as a sieve, (b) DNA ingerprinting/Cloning or RDNA | |
| 8208. |
Question : Selection of best plants from a mixed population to raise the next generation. |
| Answer» SOLUTION :MASS SELECTION. | |
| 8209. |
Question : Slash and burn agriculture means .........(A) agriculture on desert land(B) jhum cultivation(C) cultivation on hills(D) reforestation |
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Answer» AGRICULTURE on DESERT land |
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| 8210. |
Question : Skull of man is: |
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Answer» Monocondylic |
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| 8211. |
Question : Skin injury should not be neglected. Why? |
| Answer» Solution :The bacteria that CAUSE tetanus and blood poisoning ENTER our BODY from the soil through cuts and INJURIES. | |
| 8212. |
Question : Skin colour inheritance in man is |
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Answer» monogenic |
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| 8213. |
Question : Sketch and label T.S of vein |
Answer» SOLUTION :TRANSVERSE SECTION of VEIN
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| 8214. |
Question : Sketch and label T.S of Spinal cord. |
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Answer» Solution :(1) The spinal CORD is covered EXTERNALLY by three meninges viz. Dura mater, ARACHNOID membrane and pia mater. (2) Dorsoventrally there are two fissures, the shallow dorsal or posterior fissure and the deeper ventral or anterior fissure. (3) From dorsal fissure a dorsal septum extends inside. (4) Neurocoel or central canal is situated in the centre of spinal cord.  (5) The central canal is filled with cerebrospinal fluid and is lined by cuboidal epithelial cells called layer of ependyma. (6) There is inner grey and outer white matter in the spinal cord. This grey matter is in the shape of 'H' with two dorsolateral horns and two ventrolateral horns. (7) Dorsal horns form dorsal roots and ventral horns form ventral roots. (8) White matter is divided into three columns, viz., the dorsal funiculi, ventral funiculi and lateral funiculi on either SIDE. (9) Ascending and descending tracts of nerve fibres ARISE from dorsal and ventral roots of the spinal cord. Ascending tracts are sensory while descending tracts are motor in nature. |
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| 8215. |
Question : Sketch and label T.S. Of angiospermic anther . |
Answer» SOLUTION :
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| 8216. |
Question : Sketch and label the structure of male gamatophyte in anglosperm. What is siphonogamy? |
Answer» Solution :  2. SIPHONOGAMY: The fertilization process in which the non-motile male gametes are TRANSPORTED to the female gamete through the pollen tube is called siphonogamy. |
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| 8217. |
Question : Sketch and label the lateral view of human brain. |
Answer» SOLUTION :
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| 8218. |
Question :Sketch and label the T.S. of the thyroid gland. |
Answer» SOLUTION :
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| 8219. |
Question : Sketch and label structure of male gametophyte in angiosperm . What is Siphonogamy ? |
Answer» Solution :Siphonogramy is the FERTILIZATION process in which non-motile MALE gametes are TRANSPORTED to FEMALE gametes through a pollen tube. 
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| 8220. |
Question : Sketch and label structure of Antibody. |
Answer» SOLUTION :
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| 8221. |
Question : Sketch and label 'structure ofa pea flower . |
Answer» SOLUTION :
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| 8222. |
Question : Sketch and label stages in development of angiospermic female gametophyte from functional megaspore. |
Answer» SOLUTION :
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| 8223. |
Question :With the help of neat labelled diagram explain Stanley Miller's experiment in support. |
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Answer» Solution :Urey-Miller Experiment Harold Urey & Stanley Miller conducted an experiment to prove theory of CHEMICAL evolution. They created a condition SIMILAR to that of primitive earth (i.e. high temperature, volcanic STORMS, reducing atmosphere devoid of oxygen but containing compounds of carbon, hydrogen, NITROGEN and water. They made electric discharge in a closedflask containing `CH_4, NH_3, H_2` and water VAPOUR at `800^@ C`. As a result, some amino acids were formed. In similar experiments, others observed formation of sugars, nitrogen bases, pigments and fats. 
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| 8224. |
Question : Sketch and label lytic cycle. |
Answer» SOLUTION :
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| 8225. |
Question : Sketch and label internal view of heart. |
Answer» Solution : The heart shows four chambers with two atria and two ventricles. I. Atria : I. Right atrium : (1) Interatrial septum separatestwo atria which are thin walled receiving chambers on the UPPER side. (2) The right atrium receives deoxygenated blood from upper part of body through superior vena CAVA and from the lower part of the body by inferior vena cava. In the right atrium opens the coronary sinus which brings blood from the heart muscles. (3) Eustachian valve guards the opening of inferior vena cava while opening of coronary sinus is guarded by Theebesian valve. (4) On the right of interatrial septum is seen an oval depression called the fossa ovalis. 2. Left atrium : The oxygenated blood from the lungs is brought into left atrium through four openings of PULMONARY veins. II. Ventricles : (1) Two thick walled ventricles are separated from each other by interventricular septum. They are distributing chambers. (2) The inner surface of the ventricle is thrown into a series of folds called columnae carnae or trabeculae carnae. (3) Each atrium opens into the ventricle of its side through atrioventricular aperture. The right atrioventricular is guarded bytricuspid vlve. While the left atrioventricular valve by biscuspid valve or mitral valve. (4)Bicuspid and tricuspid valves are attached to PAPILLARY muscles of ventricles by chordae tendinae. The chordae tendinae prevent the valves from turning back into the atria during the contraction of ventricles. (5) From the right ventriclearises pulmonary trunk which carries deoxygenated blood to lungs for oxygenation. From the left ventricle arise systemic aorta which distributes oxygenated blood to all parts of the body. (6) Pulmonary aorta and systemic aorta have threesemilunarvalves at the base which prevent backward flow of blood during ventricular diastole. |
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| 8226. |
Question : Sketch and label 'human male reproductive system.' |
Answer» SOLUTION : Human-Male REPRODUCTIVE SYSTEM |
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| 8227. |
Question : Sketch and label a typical biogas plant. |
Answer» SOLUTION :
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| 8228. |
Question : How is nucleosome formed? Draw a diagram of the nucleosome. |
Answer» SOLUTION :
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| 8229. |
Question : Skeletal muscles work non-stop till death. |
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Answer» |
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| 8230. |
Question : Size of population is : |
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Answer» POPULATION density |
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| 8231. |
Question : Sixteen called embryo is called………….. |
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Answer» Foetus |
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| 8232. |
Question : Site of synthesis of cytokinin is |
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Answer» REGION of MATURATION of root |
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| 8233. |
Question : Site of photoperiodic response in plants is: |
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Answer» Flower |
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| 8234. |
Question : Site of PGA formation in C_3 plants & C_4 plants respectively |
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Answer» Mesophyll CELLS & Mesophyll cells |
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| 8235. |
Question : Site of gluconeogenesis is: |
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Answer» Mitochondria |
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| 8236. |
Question : Sita and Ram have their first child .Sita knows her blood type is A, but ram does not known his blood type. However, Ram knows that both his mother and father have type B blood. The first child is boy named kush. Kush has type O blood. Sita and ram do not understand how this happened . Which of the following is the best explanation? |
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Answer» Sita's GENOTYPE is AA and Ram's genotype is OO,thus, skip expresses the O phenotype |
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| 8237. |
Question : Sita is a owner of confectionary. She got an order from one of her customers to prepare 150 loaves of bread for a birthday party. On her making process of bread, though there is a time constrain, she prepared the dough and kept it aside undisturbed for few hours. Later she made the required number of breads and delivered to customer on time. A day after the party, customer appreciated Sita for the soft and good quality of bread that she supplied to party. (a) Why Sita kept aside the dough undisturbed? (b) Name the living organism involved in the process. (c) What are the products of the process? (d) How this process enhances the quality of food? |
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Answer» Solution :(a) SITA kept the dough undisturbed for the fermentation process to occur. (b) Yeast, SACCHAROMYCES erevisiae (fungus). (c) Ethyl alcohol, carbon-dioxide are the PRODUCTS of fermentation of glucose in dough. (d) During fermentation, glucose is broken down into ethanol and `CO_2` which is responsible for LEAVENING of dough. When leavened dough is baked, both the ethanol and `CO_2` gets evaporated making the bread porous and soft. |
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| 8238. |
Question : Sir J.C Bose was supporter of ____ theory of ascent of sap. |
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Answer» ROOT PRESSURE theory |
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| 8239. |
Question : Siphonogamy along with zooidogamy is a feature of |
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Answer» Cycas |
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| 8240. |
Question : Sinu-atrial node initiates the wave of contraction when |
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Answer» Only RIGHT ATRIUM is full |
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| 8241. |
Question : Single maize root apical meristem can give rise to more than (A)___ new cells per hour whereas cells in a watermelon may increase in size o by upto (B)____ times. |
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Answer» B-3,50,000 |
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| 8242. |
Question : Single step large mutation leading to speciation is also called |
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Answer» FOUNDER effect |
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| 8243. |
Question : Single membraned vesicular cell organelles with different enzymes. |
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Answer» |
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| 8244. |
Question : Single flower with multiple ovaries form |
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Answer» Composite fruit |
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| 8245. |
Question : Single cotyledon of monocot embryo:TestaTegmenScutellumColeorrhiza |
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Answer» TESTA |
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| 8246. |
Question : Single-celled eukaryotes are included in: |
| Answer» ANSWER :A | |
| 8247. |
Question : Single cell protein.(SCP) |
| Answer» Solution :(1)There are some microbes WHOSE fruting BODIES are directly used as a source of protien rich food.(2)The dried cells of microbes like bacteria,alhae,moulds and yeasts are denoted by the TERM SCP (single cell protein).(3)The single cell proteins which serve as a source of protein are obtained by growing microbes on different substrates.(4)These microbes include bacillus subtillis(bacteria).CANDIDA and saccharomyes(yeasts)and chlorella (algae). | |
| 8248. |
Question : Single cell protein is obtained from |
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Answer» plants |
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| 8249. |
Question : Single cell proteins are microbes grown on a large scale to produce proteins. Give the merits of growing SCP. |
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Answer» Solution :a. It can be grown easily on materials like waste water, straw, sewage and animal manure. b. It can serve as food RICH in PROTEIN, minerals,fats, carbohydrates and vitamins. c. It reduces ENVIRONMENTAL pollution. d. It has HIGH rate of biomass production. |
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| 8250. |
Question : Single cell protein utilization reduces ............ |
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Answer» Infection |
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