BIOLOGY - RAILWAY RECRUITMENT BOARD ASSISTANT LOCO PILOT EXAMINATION

E.S./ 17 193. Number of optical isomers in which sugar can

exist—

(a) 8 (b) 4

(e) 64

194. Carbohydrates respond to—

(a) Molish’s test (b) Marsh test (c) Iodoform test (d) Furfural test (e) Luca’s test

195. Sodium metal reacts with—

(a) Ethanol (b) Ethyl ether (c) Acetone (d) Propene (e) Alkyl halide

196. An alcohol on oxidation first yield aldehyde which on further oxidation yield carboxylic acid,bothcontainingsamenumberofcarbon atoms as the alcohol, the alcohol is—

(a) Primary alcohol (b) Polyhydric alcohol (c) Tertiary alcohol (d) Secondary alcohol (e) None of the above

197. Ethyl alcohol can be differentiated from methyl alcohol chemically by—

(a) Victor Meyer’s test (b) Idoform test (c) Luca’s test (d) Oxidation product (e) Furfural test

198. Ethylene oxide on hydrolysis yield—

(a) Ethyl alcohol (b) Ethylene glycol (c) Ethanol (d) Acetone (e) None of these

199. Which of the following find use in the manu-facture of candle ?

(a) Bees wax (b) Spermaceti wax (c) Lanodin wax (d) Paraffin wax (e) All of these

200. Wood spirit is—

(a) Methyl alcohol (b) Ethyl alcohol (c) Butyl alcohol (d) Propyl alcohol (e) Isopropyl alcohol

18/ E.S.

211. The red colour of red sea is because of—

(a) Red algae (b) Cephaleuros (c) Brown algae

(d) Trichodesmium erythrium (e) None of the above

212. Plants can be made disease resistant by—

(a) Treating with colchicine (b) Inducing mutations

(e) treating with 2-4D

213. Which one of the following gases is considered as atmospheric pollutant ?

(a) oxygen (b) ozone

(e) argon

214. The age of tree can be calculated by—

(a) counting number of branches (b) measuring its girth

(e) feeling its hardness

215. The movement of water molecule from one cell to another depends on—

(a) osmotic concentration (b) turgor pressure (c) Wall pressure (d) plasma pressure

(e) diffusion pressure deficit

216. The genes are arranged on chromosome in a—

(a) Randon manner (b) Spiral manner (c) Linear manner (d) Irregular manner

(e) None of the above manner

217. Which of the following can be used for biological control of mosquitoes ?

(a) Oil (b) Ointments

(e) Gamaxene

218. Water from soil enters into root hairs owing to—

(a) atmospheric pressure (b) capillarity

219. Diseases transmitted by the head louse is—

(a) plague (b) rabies

(e) cholera

220. Red blood corpuscles are formed in the—

(a) small intestine (b) bone marrow

(e) kidneys

221. Deficiency of Vitamin ‘C’ causes—

(a) Rheumatism (b) Kidney malfunction (c) Scurvy

(d) Respiratory disease (e) Night blindness

222. Trachoma is the disease of the—

(a) skin (b) eyes

(e) liver

223. The enzyme found in the saliva is—

(a) ptylin (b) pepsin

224. Which type of soil is the best for wheat crop ?

(a) loam (b) sandy loam

(e) clay

225. Which of the following processes liberates energy ?

(a) osmosis (b) symbiosis (c) photosynthesis (d) respiration (e) digestion

226. The heart of a young man beats about—

(a) 50 times per minute (b) 72 times per minute (c) 90 times per minute (d) 110 times per minute (e) 120 times per minute

227. What is the name of the longest bone of thigh ?

(a) vistula (b) femur

(e) tibia

E.S./ 19 228. The total number of bones in the human body

is—

(a) 206 (b) 260

(e) 417

229. The main function of white blood corpuscles in the body is—

(a) to carry food

(b) to help in the formation of clot (c) to carry oxygen

(d) to protect the body against diseases (e) to help extricate waste products 230. Deficiency of vitamin E results in—

(a) Scurvy

(b) Loss of fertility (c) Rickets (d) Beri-Beri (e) Xeropthalmia

231. Haemoglobin is a pigment present in—

(a) the plasma (b) red blood cells (c) white blood cells (d) spleen

(e) hepatic cells

232. Which of the following is anti-coagulant ? (a) Thromboplastin

(b) Sodium chloride (c) Ptassium chloride (d) Fibrinogen (e) Sodium oxalate

233. Blood Plasma is composed chiefly of—

(a) water

(b) the hormone component (c) the antibody component (d) haemoglobin

(e) lymph

234. ‘Universal Donor’ belongs to blood group—

(a) O (b) AB

(e) None of these

235. Diabetes can be controlled by the injection of—

(a) penicillin (b) thyrosin (c) terramycin (d) auromycin (e) insulin

236. Bile is secreated by the—

(a) kidney (b) liver

237. The ‘Universal Recipient’ belongs to blood group—

(a) O (b) A

(e) None of these

238. Carbon becomes available to crop plants in the form of—

(a) amino acids (b) carbon dioxide (c) carbonates (d) element carbon (e) carbohydrates

239. Which one of the following cartilage helps in the easy birth of young ones without damage to pelvic girdle ?

(a) Fibrous Cartilage (b) Hyaline Cartilage (c) Elastic Cartilage (d) Non-elastic Cartilage (e) None of the above

240. Blood circulates from arteries to veins through microscopic vessels known as—

(a) capillaries (b) corpuscles

(e) tubes 241. Antibiotics are—

(a) anaesthetic substances (b) sleeping pills

(d) drugs prepared from moulds and mould like organisms

(e) medicines against contamination of wounds

242. Blood is composite system consisting of—

(a) Plasma and red blood cells

(b) Plasma, white blood cells and red blood cells

(d) plasma and white blood cells (e) protoplasm and haemoglobin

20/ E.S.

243. Xerophytes are—

(a) plant tissues which carry out transportation of water minerals and food from one part to another

(b) the plants adapted to grow in dry habitats (c) the male reproductive parts of the flower (d) organisms living on dead organic matter (e) none of these

244. What does phototropism mean ?

(a) movement of the plant towards water and moisture

(b) specialised protoplasm from which arises a cilia

245. Who discovered Insulin ?

(a) F. Banting (b) Edward Jenner (c) Ronald Ross (d) Jonas E. Salk (e) S. A. Wakesman

246. With what discovery is Alexander Flemming associated ?

(a) circulation of blood (b) laws of heredity

247. The deficiency of which constituent causes goitre ?

(a) water (b) vitamin C

(d) vitamin A (e) iodine (e) calcium

248. Name the part or organ of the human body most commonly affected by diphtheria—

(a) Lungs (b) Intestine

(e) Throat

249. Where is the location of the pitutiary gland in the body ?

(a) Base of the brain (b) Base of the neck (c) Behind the stomach (d) Kidneys

(e) Liver

250. Who is/are credited with the discovery of the structure of DNA ?

(a) James Watson and Francis Crick (b) Hargovind Khurana

(e) None of these

251. Which of the following is not a defect of eye ? (a) Myopia (b) Hypermertropia

(e) Eczema

252. Which of the following is not an endocrine gland ?

(a) Pituitary (b) Thyroid

(e) Parathyroid

253. ‘Polycythemia’ is the increase in the number of RBCs in the body due to—

(a) Muscular exercise

(b) Environmental temperature (c) High altitude

(d) Hormonal disease (e) All of these

254. Name the disease of the bones caused by the deficiency of vitamin D in the body—

(a) Beri-Beri (b) Scurvy (c) Trachoma (d) Diabetes (e) Rickets

255. Blood is purified in—

(a) lungs (b) kidneys

256. Reflex action is the function of—

(a) autonomous nervous system (b) spinal chord

257. Fats are digested by—

(a) bile (b) erepsin

258. Sunlight produces—

(a) Vitamin A (b) Vitamin B (c) Vitamin C (d) Vitamin D (e) Vitamin E

E.S./ 21 259. Hepatitis is a disease of the—

(a) eyes (b) liver

(e) brain

260. Which of the following is not an essential function of the skin in the human body ? (a) protects the internal organs of the body (b) acts as a sensory organ

(d) regulates the temperature of the body (e) gives shape to the body

261. Which of the following is not concerned with lungs ?

(a) respiration (b) pneumonia

262. In digestion bile provides—

(a) enzymes (b) hormones

(e) copper

263. Oxyntic cells in stomach mainly secrete—

(a) Pepsin (b) HCl

(e) Ptyalin

264. Who was the founder of Homeopathy ? (a) Berliner (b) Robert Koch (c) Hahnemann (d) Broquet (e) Elias How

265. Streptomycin was discovered by—

(a) Alexander Flemming (b) Joseph Lister (c) Wakesman (d) W. Shockley (e) None of these

266. Pigmented layer of the eye is known as—

(a) retina (b) sclerotic

(e) cone

267. Edward Jenner discovered—

(a) Antiseptic surgery (b) Small pox Vaccine

(d) Malaria parasite (e) Radium

268. Blood group of an individual is determined by—

(a) haemoglobin (b) antigen on RBC (c) antigen on WBC (d) genes

(e) both, by RBC and WBC 269. A cardiogram is used to trace the—

(a) growth of plants

(b) pulsation of the cardiac nerve (c) defects in the small intestine (d) proper heart function (e) function of lungs 270. What is allergy ?

(a) It is a high altitude disease

(b) it is an abnormal reaction of the body by the introduction of a foreign substance (c) It is an attitude of repulsion towards one’s

enemies

(d) It is a bad habit of backbiting others (e) It is a high blood pressure disease

271. The poor children of the under developed countries normally suffer from a disease known as kwashiorkor. It is due to the deficiency of—

(a) Iron (b) Calcium

272. The bacteria, which decompose nitrates of the soil to set free nitrogen, are called—

(a) nitrifying bacteria (b) symbiotic bacteria (c) nitrosifying bacteria (d) denitribying bacteria (e) nitrogenous bacteria

273. Which of the following is a proteolytic enzyme?

(a) adenine (b) insulin (c) diastage (d) pepsin (e) thymine

274. Man is—

(a) a primate (b) an animal (c) a carnivore (d) a rodent (e) none of the above

22/ E.S.

275. In a normal man the amount of blood put out by the heart per minute is about—

(a) 1 litres (b) 2 litres (c) 3 litres (d) 4 litres (e) 5 litres

276. Centripetal xylem is the characteristic of—

(a) Roots (b) Stems

277. D.N.A. (Deoxyribonucleic acid) is concen-trated in the—

(a) Chromatin (b) Nucleoplasm (c) Microsome (d) Cell Wall (e) Protoplasm

278. The human blood has a specific gravity of—

(a) 1·055 (b) 1·235

(e) 2·45

279. Insulin controls the metabolism of—

(a) hormones (b) proteins

(e) salts

280. The name of the disease called Lock-jaw is—

(a) Hypetropia (b) Epilepsy (c) Apoplexy (d) Tetanus (e) Arthritis

281. 20% of the total volume of the blood is stored up in the—

(a) Heart (b) Liver

(e) Pancreas

282. It is not advisable to sleep under a tree at night because—

(a) it is cold over there

(b) the leaves produce a sticky substance (c) the tree gives out CO₂ at night (d) oxygen is produced by the air

(e) supernatural beings inhabit the trees at night

283. Total water content in soil is known as—

(a) Echard (b) Chresard

284. Ionizing radiations are used in—

(a) Sterilization

(b) Preservation of food stuffs (c) Inducing artificially mutation

(d) All the above (e) None of the above 285. Pyorrhoea is a disease of—

(a) Liver (b) Lungs

286. Mention the science dealing with fossil plants—

(a) Palaeobotany (b) Geology (c) Epistemology (d) Entomology (e) Histology

287. Acupuncture is a technique—

(a) to correct a tube puncture (b) to subside the pain

(c) to cure certain diseases, e.g., arthritis, rheumatism, etc.

(d) for operation and removal of a body part (e) none of the above

288. Which one of the following is an indicator of air pollution ?

(a) Lichens (b) Cycas

(e) Pteridophytes

289. The association of nodules bacteria with the roots of legumes is called as—

(a) parasitism (b) symbiosis (c) epiphytism (d) saprophytism (e) commensalism

290. The organism that lives at the cost of another living organism is called—

(a) aphrodite (b) saprophyte (c) graminivor (d) parasite (e) epiphyte

291. The substance which has recently received greater attention in investigations concerning disases of the heart and blood vessels is—

(a) protein (b) fats

292. Which of the following phenomena normally leads to coronary heart disease—

(a) blood pressure (b) anaemia (c) Arteriosclerosis (d) indigestion (e) worry

E.S./ 23 293. The cell is considered to be the fundamental

living unit because—

(a) it is the smallest part of organism that is visible under the microscope

(b) the biologist can not test experimentally a smaller unit of material

(e) iti s the smallest amount of material that exhibits growth, metabolism, self regula-tion and self-reproducregula-tion

294. Red-green colour blindness in man is known as—

(a) Protanopia (b) Deuteranopia (c) Both a & b

(d) Marfan’s syndrome (e) None of these

295. One of the following pigments protect plants from harmful effect of ultraviolet rays, is—

(a) Chlorophyll (b) Carotenoid (c) Phycocyanin (d) Phycoerythrin (e) Plastid

296. Genetics is the study of the—

(a) mutations (b) cell division (c) reproduction

(d) mechanism of inheritance

(e) growth and differentiation in living orga-nism

297. Supersonic jets cause pollution by thinning of—

(a) Sulphur dioxide layer (b) Carbon dioxide layer (c) Ozone layer

(d) All of these (e) None of these

298. ‘World Evironment Day’ is celebrated every year on—

(a) 15 January (b) 26 August

(e) 20 July

299. Which of the following disease is caused by a fungus ?

(a) Mumps (b) Trichinosis

300. Which of the following disease is not a water borne disease ?

(a) Cholera (b) Typhoid (c) Asthama

(d) Amoebic dysentery (e) Tularemia

301. Bacteria do not need sunlight to grow because—

(a) they make their food without light

(b) they use other kinds of light for manu-facturing their food

(d) they like darkness (e) none of the above 302. The viruses lack—

(a) Proteins (b) Enzymes (c) Nucleic acids (d) Tentacles (e) All of these

303. Putrefaction involves—

(a) Anaerobic degradation of proteins by bacteria

(b) Aerobic breakdown of proteins (c) Degradation of carbohydrates (d) Degradation of fats

(e) None of these

304. Commercial source of streptomycin is—

(a) Streptomyces venezuellae (b) Streptomyces griseus (c) Streptomyces scoleus (d) Streptomyces aureus (e) All of these

305. Pneumonia is caused by—

(a) virus (b) fungi

306. The poisonous substance produced by bacteria is known as—

(a) toxin (b) caffein

24/ E.S.

307. Which one of the following is commonly called

‘Edible sponge mushroom’ ?

(a) Sargassum (b) Morchella (c) Agaricus (d) Polyporus (e) None of these

308. One of the following is the rich source of natural litmus—

(a) Red algae (b) Lichens (c) Rocella (d) Agaricus (e) Sargassum

309. The most important part of a green plant is—

(a) stalk (b) leaf

(e) none of these

310. Aflatoxin in humans is produced by—

(a) Penicillium (b) Rhizopus nigricous (c) Yeast

(d) Aspergillus (e) Puccinia

311. The banch of the science dealing with the study of human skin is called—

(a) Physiology (b) Pathology (c) Anatomy (d) Biochemistry (e) Dermatology

312. Whatisthedistincthumanvisionnormally ? (a) 12-30 feet (b) 1-2metres (b) 25-30 metres (d) 50-75 cms.

(e) 25-30 cms.

313. Gaseous exchange between old corky stem and internal tissue takes place through—

(a) xylem (b) phloem

314. Which of the following disease is caused by air pollution ?

(a) Leukemia (b) Bronchitis (c) Rheumatism (d) Goitre (e) Rubeola

315. The total number of muscles in the human body is—

(a) 525 (b) 639

(e) 734

316. Which is not a vector borne disease ? (a) Malaria

(b) Sleeping sickness (c) Ascariasis (d) Rabies (e) Dengue fever

317. Teratology is the branch of biology which deals with the study of—

(a) Extra-embryonic memberane (b) Post-embronic development

(d) Haemopoisis

(e) Abnormal development during embryo-genesis

318. Larva of mosquito is known as—

(a) Imago (b) Maggot

319. The language of Honey-bees was decoded by—

(a) Carolus Linnaeus (b) William Harvey (c) Karl von Frisch (d) Charles Darwin (e) Mendel

320. Which insect is not found in wild state ? (a) Silk Moths (b) Honey bees (c) Cochineal insects (d) Lac insects (e) None of the above

321. The function of the tapetum in the anther is—

(a) protective (b) productive (c) nutritive (d) decorative (e) conduction

322. The fastest running animal is—

(a) Ape (b) Dog

(e) Leopard

323. Diabetes incipidus is caused due to the defi-ciency of—

(a) Insulin

(b) Anti-diuretic hormone (ADH) (c) Glucagon

(d) Thyroxine (e) ASH

E.S./ 25 324. An injury caused to the rear portion of the

cerebrum would most likely affect—

(a) the sense of hearing (b) the snese of sight (c) muscular co-ordination (d) the hand jerk

(e) swallowing

325. Chloromycetin is obtained from—

(a) Streptomyces griseus (b) Streptomyces venezuelae (c) Acetobactor aceti (d) Aspergillus niger (e) All of these

326. Introduction of dead or weak pathogen in the body results in—

(a) Natural immunity

(b) Passive acquired immunity (c) Active acquired immunity (d) Multiplication of pathogens (e) None of these

327. What is the chemical name for Vitamin B₁— (a) Glycodin (b) Cholesterol

(e) Riboflavine

328. Clotting of blood in blood-vessels is known as—

(a) haemolysis (b) Haemopoisis (c) Thrombosis (d) Agglutination (e) Rheumatism

329. Which is the only mammal which can fly ?

(a) Whale (b) Snake

(e) Bat

330. What are the main chemical elements of the bone ?

(a) Carbon, phosphorus and hydrogen (b) Calcium, phosphorus and oxygen (c) Nitrogen, phosphorus and potassium (d) Oxygen, hydrogen and nitrogen (e) Carbon, hydrogen and oxygen 331. The outer most layer of epidermis is—

(a) Stratum geminatum (b) Stratum lucidium (c) Stratum granulosum

(d) Stratum corneum (e) None of these

332. Grafting in monocot plant is not possible because they—

(a) Lack cambium

(b) Lack secondary growth (c) Have adventitious roots (d) Have scattered vascular bundles (e) None of these

333. Plants are killed in winter by frost because—

(a) Water expands and breaks the cells (b) Water in the plants freezes

(d) No photosynthesis at low temperature (e) None of these

334. The Hydroponics refers to—

(a) Marine water plantation (b) Growing plants in loam soil

(d) Culture of plants (e) Dry land plantation

335. Most of the atmospheric nitrogen in nature is fixed by—

(a) Prokaryotes (b) Anabaena (c) Green plants (d) Azotobacter (e) All of these

336. Which of the following is a non-essential element for the growth of plants ?

(a) Calcium (b) Sodium

(e) Magnesium

337. Why is rotation of crops essential ? (a) For increasing the quantity of minerals (b) For increasing the quantity of proteins (c) For getting different kinds of crops (d) For increasing fertility of the soil (e) For the above purposes

338. Which of the following is present in plant embryo ?

(a) cotyledons

(b) cotyledons and plumule (c) radicle, plumule and cotyledons (d) cotyledons and endosperm (e) radicle and plumule

26/ E.S.

339. Anaemia in man is caused due to the deficiency of—

(a) Vitamin C (b) Vitamin B₁₂ (c) Vitamin A (d) Folic acid (e) Vitamin D

340. Saffron is derived from—

(a) Roots of crocus (b) Petals of crocus (c) Leaves of crocus

(d) Styles and stigmas of crocus (e) All of these

Below are given statements. Write ‘Yes’

against those which are correct and ‘No’

against those which are incorrect.

341. Genetic code is a code of characters by which inherited characters are transmitted from one generation to another. Yes/No 342. Charles Darwin propounded cell theory.

Yes/No 343. The thyroid gland is situated in the head.

Yes/No 344. Deciduous trees are the tress which shed their

leaves in a certain season. Yes/No 345. Endemic disease are those which are constantly

present in a population of a area but affects only a few at a time. Yes/No 346. Soil-erosion cannot be controlled by

con-servation techniques. Yes/No 347. Biofertilizers are essential for sustaining soid

fertility. Yes/No

348. Dwarf mexican varities of wheat are low

yielding once. Yes/No

349. Rice is a dryland crop. Yes/No 350. Horticulture deals with garden crops. Yes/No

Miscellaneous Questions on

Dalam dokumen RAILWAY RECRUITMENT BOARD ASSISTANT LOCO PILOT EXAMINATION (Halaman 164-173)