MCQs Biology Class 12 for Entry Test

biology mcqs class 12
biology mcqs class 12

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MCQs Biology Class 12 for Entry Test

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MCQs Biology Class 12 for Entry Test

1201. It is very serious disease of brain which is caused by fungi________?

A. ring worm
B. meningitis
C. hepatitis
D. none of these

1202. Many bacteria in our digestive system synthesize vitamins for example vitamin_________?

A. B1
B. B2
C. B12
D. B6

1203. Which is not a vertebrate?

A. Reptiles
B. Fish
C. Insect
D. None of these

1204. Which of the following is the less important organ in human body?

A. Hair
B. Appendix
C. Hip bone
D. Navel

1205. Who is the father of Genetics?

A. Robert Hook
B. Robert Brown
C. Gregor Mendel
D. Charless Darwin

1206. which of the following hepatitis is more contagious ?

A. HAV
B. HBV
C. HCV
D. HDV

1207. Which branch of science is short in laws?

A. Biology
B. Physics
C. Chemistry
D. All of these

1208. A condition in which there is a decrease of oxygen to the tissue despite adequate blood flow to the tissue is_________?

A. Aphasia
B. Dysphasia
C. Hypoxia
D. None

1209. Insulin is a human__________?

A. Gene
B. Protein
C. Glucose
D. Diabetes

1210. The body of ________ is not made of cell.

A. Bacteria
B. Fungi
C. Viruses
D. Algae

1211. The biggest group of invertebrates is_________?

A. Worms
B. Insects
C. Jelly fish
D. None of these

1212. Which among the following is an Autotroph _________ ?

A. Butterfly
B. Mushroom
C. Fish
D. Algae

1213. Which of the following ” Tikka disease” is related with the crop?

A. Musturd
B. Paddy
C. Ground nut
D. None of these

1214. The hormone that helps in Parthenocarpy?

A. Abscisic acid
B. Cytokinin
C. Ethylene
D. Gibberellin

1215. The plant dye Henna imparts orangered colour to skin and hairs due to its reaction with which of the following?

A. Lipids
B. Carbohydrates
C. Amino acids
D. Protein and amino acids

1216. Disease which transferred from animal to Human is_________?

Sporadic
Epidemic
Endemic
Zoonosis

1217. Trisomy 21 is most common in mothers of the ________ age group.

A. 15 to 19
B. 20 to 34
C. 35 to 39
D. 40 to 45

1218. Who is the Father of Genetics?

A. Gregor Mendel
B. Alexendar
C. Darewin
D. Louis pasture

1219. Ingestion of some water with food in Amoeba takes place by the process of ______ ?

A. Endosmosis
B. Pinocytosis
C. Phagocytosis
D. None of these

1220. Amoeba secretes digestive enzymes to hydrolyse _________ ?

A. Starch
B. Sugar
C. Proteins
D. All of these and fats

1221. The number of daughter paramecia produced following conjugation is _______ ?

A. 8 from one conjugant
B. 8 from two conjugants
C. 16 from two conjugants
D. 8-16 from two conjugants

1222. Corolla and calyx collectively termed as___________?

A. Prienth
B. Hermaphrodite
C. Complete flower
D. Sexual whorls

1223. Sporogony of malaria parasite occurs in _______ ?

A. Liver of man
B. RBC of man
C. Stomach wall of mosquito
D. Salivary glands of mosquito

1224. Under unfavourable conditions, the Amoeba reproduces by ________ ?

A. Binary fission
B. Conjugation
C. Encystment
D. Endomixis

1225. Mild tertian malaria is caused by _______ ?

A. Plasmodium vivax
B. Plasmodium falciparum
C. Plasmodium ovale
D. Plasmodium malariae

1226. Blood does not coagulate inside the body due to the presence of___________?

A. Haemoglobin
B. Fibrin
C. Heparin
D. Plasma

1227. Accurate name given to blood is ___________ ?

A. Red fluid
B. Hemoglobin
C. Fluid tissue
D. Plasma

1228. Sweat glands occur in greatest number in the skin of the__________?

A. Forehead
B. Back
C. Armpits
D. Palm of hand

1229. Protein which acts as hormone is__________?

A. Casein
B. Trypsin
C. Oxytocin
D. Keratin

1230. Which one of the following vitamin is known as the “anti- Sterile” factor?

A. Ascorbic acid
B. Retinol
C. Riboflavin
D. a-tocopherols

1331. Which of the following vitamins is useful in ostcoimalacia?

A. Vitamin D
B. Vitamin E
C. Vitamin C
D. Vitamin A

1232. Human body makes about 20 million erythrocytes in__________?

A. One Second
B. Two Seconds
C. Three Seconds
D. Four Seconds

1233. Ingestion of bacteria by certain type of cells is termed as ________ ?

A. Acclimatization
B. Agglutination
C. Paralysis
D. Phagocytosis

1234. The expected number of RBCs in a single drop, or microliter, of blood is _________ million in Women.

A. 4.5 to 6.2 million
B. 3.4 to 6.8 million
C. 3.2 to 7.2 million
D. 4.0 to 5.2 million

1235. The normal range of the number of white blood cells in a microliter of blood is between _________ ?

A. 2,500 and 09,300
B. 4,500 and 10,000
C. 4,900 and 12,000
D. None of these

1236. The expected number of RBCs in a single drop, or microliter, of blood is _________ million in Men.

A. 4.5 to 6.2 million
B. 3.4 to 6.8 million
C. 3.2 to 7.2 million
D. 4.0 to 5.2 million

1237. Parkinson is a disease of_________?

A. Lungs
B. Eyes
C. Brain
D. Bones

1238. Acetabularia is a kind of __________ ?

A. Fungi
B. Protist
C. Multicellular alga
D. Unicellular alga

1239. Acetabularia mediterranea has a cap of _________?

A. Regular shape
B. Circular shape
C. Triangular shape
D. Cone shape

1240. What is hibernation and aestivation________?

A.Thermal adaptation shown by animals
B. wind adaptation shown by animals
C. adaptation of animals to escape from predators
D. none of the above

1241. Enzyme activity can also be charted through the __________ ?

A. Rate of digestion
B. Rate of reaction
C. Level of pH
D. Number of active sites

1242. BOD refers to the __________?

A. Bidding of Dermatology
B. Binding of Dirt
C. Biochemical occupied Date
D. Biochemical Oxygen demand

1243. Self pollination is not possible in ________ ?

A. Dioecious plants
B. Pawpaw
C. Flowers
D. both A and B 

1244. “lub” sound is produced after _________ ?

A. The ventricles are fully contracted
B. The ventricles start to relax
C. The bicuspid and tricuspid valves suddenly close
D. The semilunar valves are closed

1245. Examples of Epigeal germination include _________ ?

A. Maize
B. Sword bean seed
C. Broad bean seed
D. Corn

1246. All are functions of hypothalamus, but, _________ ?

A. Regulation of body temperature
B. Regulation of anti-diuretic hormones
C. Regulation of sleep and emotions
D. Regulation of blood osmotic pressure

1247. More water is reabsorbed in blood due to _________ ?

A. More anti-diuretic hormone
B. Lesser anti-diuretic hormone
C. Active functioning of pancreas
D. Inactivity of pituitary gland

1248. Sessile flowers have _________ ?

A. No scent
B. Irregular shape
C. No pedicles
D. No petals

1249. Stamens are not usually pendulous in plants pollinated by __________ ?

A. Wind
B. Insects
C. Water
D. Rain

1250. Guard cells of stoma are ________ ?

A. Irregular in shape
B. Convex in shape
C. Long and cylindrical in shape
D. Kidney-shaped

1251. Special kind of protein containing iron is called as _________ ?

A. Hormones
B. Hemoglobin
C. Red blood cell
D. White blood cell

1252. Zygote with three copies chromosome 21, is known to cause _________?

A. Hay fever
B. Scurvy
C. Parkinson Disease
D. Downs syndrome

1253. Kind of respiration through which skeletal muscles of human body gets the energy is ________ ?

A  Acidic respiration
B. Anaerobic respiration
C. Aerobic respiration
D. Nitrogenous respiration

1254. Fuel used by cells in cellular respiration to get energy is ________ ?

A. polysaccharides
B. Polypeptides
C. Glucose
D. Sugar

1255. Kind of cellular respiration which occurs in presence of oxygen is _________ ?

A. Anaerobic respiration
B. Aerobic respiration
C. Nitrogenous respiration
D. Acidic respiration

1256. Special enzymes are released during necrosis from __________ ?

A. lysosomes
B. Vacuoles
C. Cytoplasm
D. Golgi bodies

1257. Number of cells that are destroyed in adults by apoptosis are ________ ?

A. 20 to 35 billion cells
B. 50 to 70 billion cells
C. 10 to 20 billion cells
D. 15 to 25 billion cells

1258. Biebs that are broke off from cell are called __________?

A. Apoptotic bodies
B. Necrosis bodies
C. Tuberculosis bodies
D. Cytokinetic bodies

1259. Crysanthemum is propagated by___________?

A. Suckers
B. corms
C. corals
D. None

1260. Outer surface of bones is covered by a dense layer of connective tissue, called as ___________ ?

A. Periosteum
B. Woven bone
C. Epithelium lining
D. Connective lining

1261. Another name for liver is called ___________ ?

A. Hepar
B. Hepta
C. Heptum
D. Hilum

1262. Joints between flat bones of skull are termed as ____________ ?

A. Suture
B. Sutural joints
C. Syndesmosis
D. Both A and B

1263. Length of membranous urethra is about ___________ ?

A. 1 cm
B. 2 cm
C. 5 cm
D. 9 cm

1264. Division of nucleus is termed as___________ ?

A. Karyokinesis
B. Cytokinesis
C. Anaphase
D. Meiosis

1265. Membrane that separates ‘cytoplasm’ and ‘nucleus’ is called ___________ ?

A. Cell wall
B. Cell membrane
C. Boundary
D. Nuclear envelop

1266. Which one of the following is referred as the species occupation?

A. Autecology
B. Niche
C. Ecosystem
D. Biome

1267. The first ever vascular plants are_________?

A. Cooksonia 
B. Selaginella
C. Adiantum
D. Dryopteris

1268. Circular disc shaped structure with a round hole is ___________ ?

A. Iris
B. Pupil
C. Horoid coat
D. Ciliary body

1269. The higher animals have special organs for exchange of gases as their skin is ___________ ?

A. Thin
B. Thick
C. Soft
D. Hard

1270. Dorsal root of spinal nerves contain only __________ ?

A. Effectors neurons
B. Receptor neurons
C. Stimulators
D. Detector neurons

1271. Study of interaction of living organisms with other organisms and their environment relates with ___________ ?

A. Botany
B. Ecology
C. Social biology
D. Pharmacology

1272. __________is a condition in which there is an absence of oxygen supply to an organ’s tissues?

A. Anoxia
B. Anorexia
C. Hypoxia
D. Enuresis

1273. Virus is__________?

A. unicellular
B. multicellular
C. acellular
D. none of these

1274. Term the time during which an orgnism is present in the body before causing disease ?

A. Rest period
B. Incubation period
C. Sleeping period
D. Inclubation time

1275. Insects responsible for transmitting diseases are called___________?

A. Drones
B. Vectors
C. Hybirds
D. None of these

1276. The first cloned animal was____________?

A. Goat
B. Cow
C. Rat
D. Sheep 

1277. Genetic information carriers is/are____________?

A. DNA
B. Chromosomes
C. Gene
D. Nucleus

1278. The number carpels in our feet is__________?

A. 7
B. 14
C. 16
D. 0

1279. Oxygen is the production of____________?

A. Mitochonderia
B. Chloroplast
C. Peroxisomes
D. Both A & B

1280. The method of reproduction of new plants by cells instead of seed is known is:___________?

A. Tissue culture
B. Mutation
C. Antibiosis
D. Recombination

1281. The cardio respiratory capacity is related to____________?

A. Strength
B. Flexibility
C. Normal physical endurance
D. Agility

1282. Ultra Microscopic viruses are the main cause of__________?

A. Malaria
B. Measles
C. Mumps
D. Cholera

1283. Which is NOT an example of a microbial symbiosis?

A. bacteria in the human colon
B. tapeworm in the cow intestine
C. bacteria passing through the placenta
D. protozoans found within termites

1284. Which of the following proteins have role in heredity?

A. Chromo-proteins
B. Lipo-proteins
C. Phospho-proteins
D. Nucleo-proteins

1285. Deficiency of vitamin C will cause:__________?

A. Beri-Beri
B. Architis
C. Scurvy
D. Night-blindness

1286. Coelom is divided into septa in case of: __________?

A. Molluscs
B. Annelids
C. Sponges
D. Cniderians

1287. Haemoglobin is dissolved in the blood of:___________?

A. Earthworm
B. Cockroach
C. Hydra
D. Sponges

1288. Like enzymes , co enzyme can be used ?

A. only once
B. only few times
C. again and again
D. non of above

1289. Which of the following gases readily combines with the haemoglobin of the blood?

A. Carbon monoxide
B. Methene
C. Oxygen
D. Nitrogen dioxide

1290. Which of the following is a disease caused by deficiency of protein in children?

A. Pellagra
B. Marasmus
C. Beri-Beri
D. Rickets

1291. Which of the following secrete hydrochloric acid in stomach?

A. Mucosa
B. Goblet
C. Epithelial
D. Oxyntic

1292. What is called movement of cell against concentration gradient ?

A. Passive Transport
B. Osmosis
C. Active Transport
D. Diffusion

1293. Human blood is a viscous fluid due to_________?

A. Platelets in plasma
B. Proteins in blood
C. RBC and WBC in blood
D. Sodium in serum

1294. There are cells in human body called Faggot cells which cause__________?

A. AIDS
B. Tuberculosis
C. Smallpox
D. Leukaemia

1295. What is the percentage of water present in our brain?

A. 85%
B. 95%
C. 97%
D. 73%

1296. Which tube joins kidneys and bladder?

A. Urethra
B. Uretar
C. Inferno Verna Cava
D. Suprapubic Tube

1297. Stimulus for CCK hormone is___________?

A. Fat, Protein
B. Acid
C. Base
D. Both A & B

1298. Dogs mostly show which type of Diabetes Mellitus:

A. Type 1 diabetes
B. Type 2 diabetes
C. Both a& b
D. None of these

1299. Cats mostly show which type of Diabetes Mellitus?

A.Type 1 diabetes
B. Type 2 diabetes
C.Both A. & B
D. None of these

1300. Which of the following are insulin dependent Glut receptors?

A. Glut 1&3
B. Glut 2
C. Glut 1
D. Glut 4

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