MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 1212 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
Which of the following bones bones are present in the plam of hand? |
| A. | Carpals |
| B. | Metacarpals |
| C. | Phalanges |
| D. | Metatarsals |
| Answer» C. Phalanges | |
| 202. |
Which of the following bone is not present in the hind-limb? |
| A. | Femur |
| B. | Tibia |
| C. | Radius |
| D. | Fibula |
| Answer» D. Fibula | |
| 203. |
Which of the following bacteria do not have flagella commonly__________? |
| A. | Cocci |
| B. | Bacilli |
| C. | Streptobacilli |
| D. | Vibrio |
| Answer» B. Bacilli | |
| 204. |
Which of the following bacteria are thick rigid and spiral______________? |
| A. | Vibrio |
| B. | Spirillum |
| C. | Spirochete |
| D. | Coccus |
| Answer» C. Spirochete | |
| 205. |
Which of the following are triploblastic and acoelomate? |
| A. | Sponges |
| B. | Annelida |
| C. | Platyhelminthes |
| D. | Aves |
| Answer» D. Aves | |
| 206. |
Which of the following are responsible for the detection of changes in environment? |
| A. | Receptors |
| B. | Neurons |
| C. | Effectors |
| D. | All of these |
| Answer» B. Neurons | |
| 207. |
Which of the following are proteins in nature? |
| A. | Antibodies |
| B. | Interferons |
| C. | Antitoxins |
| D. | All of these |
| Answer» E. | |
| 208. |
Which of the following are motile zooids in cnidarians? |
| A. | Polyps |
| B. | Medusae |
| C. | Both of these |
| D. | None of these |
| Answer» C. Both of these | |
| 209. |
Which of the following are connective tissues? |
| A. | cartilage |
| B. | bone |
| C. | blood |
| D. | all the above |
| Answer» E. | |
| 210. |
Which of the following animals has a respiratory system with one way flow of the air through the lungs, and the air is renewed after inspiration? |
| A. | Cockroach |
| B. | Earthworm |
| C. | Aves |
| D. | Frogs |
| Answer» D. Frogs | |
| 211. |
Which of the following animal uses Setae and Muscles for their Iocomotion? |
| A. | Cockroach |
| B. | Snail |
| C. | Earthworm |
| D. | Star fish |
| Answer» D. Star fish | |
| 212. |
Which of the following animal excrete nitrogenous waste mainly as uric acid? |
| A. | Hydra |
| B. | Planaria |
| C. | Humans |
| D. | Birds |
| Answer» E. | |
| 213. |
Which of the following animal has a hydrostatic skeleton? |
| A. | Earthworm |
| B. | Round worm |
| C. | Tape worm |
| D. | Pin worm |
| Answer» B. Round worm | |
| 214. |
Which of the following allows precise muscular movements_______________? |
| A. | Cerebrum |
| B. | Cerebellum |
| C. | Thalamus |
| D. | Hypothalamus |
| Answer» C. Thalamus | |
| 215. |
Which of the following acts as thermoregulator? |
| A. | Cerebrum |
| B. | Cerebellum |
| C. | Thalamus |
| D. | Hypothalamus |
| Answer» E. | |
| 216. |
Which of the Euglenas (a Protoctista) character resembles that of animals______________? |
| A. | They can move |
| B. | They lack cell wall |
| C. | They do not have chlorophyll |
| D. | Both a and b |
| Answer» E. | |
| 217. |
Which of following system is segmentally arranged in annelids? |
| A. | Excretory system |
| B. | Digestive system |
| C. | Criculatory system |
| D. | Nervous system |
| Answer» D. Nervous system | |
| 218. |
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 |
| Answer» D. protozoans found within termites | |
| 219. |
Which is not a vertebrate ? |
| A. | Reptiles |
| B. | Fish |
| C. | Insect |
| D. | None of these |
| Answer» D. None of these | |
| 220. |
Which is an organic compound found in most cells ? |
| A. | Water |
| B. | Glucose |
| C. | Oxygen |
| D. | Sodium chloride |
| Answer» C. Oxygen | |
| 221. |
Which is a parasitic plant? |
| A. | cuscuta |
| B. | rose |
| C. | ferns |
| D. | mosses |
| Answer» B. rose | |
| 222. |
Which excretory product in produced in plants during autotrophic mode of life? |
| A. | CO2 |
| B. | H2O |
| C. | O2 |
| D. | Both A and B |
| Answer» D. Both A and B | |
| 223. |
Which disease has been totally eradicated from the world because of effective vaccination? |
| A. | Measles |
| B. | Polio |
| C. | Small pox |
| D. | Hepatitis |
| Answer» D. Hepatitis | |
| 224. |
Which disease can be controlled by vaccination? |
| A. | Measles |
| B. | Cancer |
| C. | Diabetes |
| D. | Heart attack |
| Answer» B. Cancer | |
| 225. |
Which conjegated molecules play important role in gene expression___________? |
| A. | Glycolipids |
| B. | Glycoproteins |
| C. | Nucleohistones |
| D. | None of these |
| Answer» D. None of these | |
| 226. |
Which chemical component has the same % in bacterial as well as the mammalian cell_____________? |
| A. | Water |
| B. | Carbohydrate |
| C. | Proteins |
| D. | Lipids |
| Answer» B. Carbohydrate | |
| 227. |
Which chemical component has the greatest contribution in the total mammalian cell weight__________? |
| A. | Proteins |
| B. | Carbohydrate |
| C. | Lipids |
| D. | Water |
| Answer» E. | |
| 228. |
Which character differentiates living things from non-living organisms___________? |
| A. | They live in the same ecosystem. |
| B. | They are acted upon by the same environment |
| C. | They are highly organized and complex made of one or more cells and contain genetic material |
| D. | Both a and b |
| Answer» D. Both a and b | |
| 229. |
Which character differentiates living things from non-living organisms? |
| A. | They live in the same ecosystem |
| B. | They are highly organized and complex made of one or more cells and contain genetic material |
| C. | They are acted upon by the same environment |
| D. | Both a and b |
| Answer» C. They are acted upon by the same environment | |
| 230. |
Which branch of science is short in laws ? |
| A. | Biology |
| B. | Physics |
| C. | Chemistry |
| D. | All of these |
| Answer» B. Physics | |
| 231. |
Which bone is called beauty bone in women? |
| A. | sternum |
| B. | clavicle |
| C. | maxilla |
| D. | radius |
| Answer» C. maxilla | |
| 232. |
Which are the four most abundant elements in living cells ? |
| A. | carbon, oxygen, nitrogen, sulfur |
| B. | carbon, oxygen, hydrogen, nitrogen |
| C. | carbon, oxygen, sulfur, phosphorus |
| D. | carbon, sulfur, hydrogen, magnesium |
| Answer» C. carbon, oxygen, sulfur, phosphorus | |
| 233. |
Which among the following is an Autotroph _________ ? |
| A. | Butterfly |
| B. | Mushroom |
| C. | Fish |
| D. | Algae |
| Answer» E. | |
| 234. |
Which adaptation is acquired by plants of cooler areas to prevent lipid crystal formation in cell membrane? |
| A. | Change in membrane protein composition |
| B. | Change in the solute composition of the cell membrane which prevents crystallization |
| C. | Increase in proportion of unsaturated fatty acids |
| D. | Development of heat shock proteins |
| Answer» D. Development of heat shock proteins | |
| 235. |
When abdomen expands, the number of spiracles open is_____________? |
| A. | 2 |
| B. | 3 |
| C. | 6 |
| D. | 8 |
| Answer» E. | |
| 236. |
What percentage of light reaching the earth is used in photosynthesis? |
| A. | 25% |
| B. | 10% |
| C. | 5% |
| D. | 1% |
| Answer» E. | |
| 237. |
What is the mode of transmission of Hepatitis virus? |
| A. | Aerosol |
| B. | Parentral (via blood) |
| C. | Skin penetration |
| D. | Unknown |
| Answer» C. Skin penetration | |
| 238. |
What is the function of synapse________________? |
| A. | To allow nerve impulse to move in backward direction |
| B. | To decrease the speed of nerve impulse |
| C. | To stop the nerve impulse |
| D. | To provide cytoplasmic connection between neurons |
| Answer» C. To stop the nerve impulse | |
| 239. |
What is the characteristic feature of consumers? |
| A. | Autotroph |
| B. | Heterotroph |
| C. | Parasite |
| D. | Saprophyte |
| Answer» C. Parasite | |
| 240. |
What is the branch of biology in which structure and function of tissues are studied___________? |
| A. | Cell Biology |
| B. | Taxonomy |
| C. | Histology |
| D. | Morphology |
| Answer» D. Morphology | |
| 241. |
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 |
| Answer» B. wind adaptation shown by animals | |
| 242. |
What happens during muscle contraction to the length of each myosin and action filament? |
| A. | Z- lines get closer |
| B. | A band becomes short |
| C. | 1 band elongates |
| D. | There is no change in sarcomere |
| Answer» B. A band becomes short | |
| 243. |
Water potential of pure water is__________? |
| A. | zero |
| B. | one |
| C. | negative |
| D. | two |
| Answer» B. one | |
| 244. |
Water is _________ times viscous than air? |
| A. | 50 |
| B. | 1000 |
| C. | 5000 |
| D. | 8000 |
| Answer» B. 1000 | |
| 245. |
Water has maximum density at____________? |
| A. | 0°C |
| B. | 4°C |
| C. | 4° K |
| D. | 4.8°C |
| Answer» C. 4° K | |
| 246. |
____________ was first to propose an objective definition of instinct. |
| A. | Thorpe |
| B. | Darwin |
| C. | Pavlov |
| D. | Kohler |
| Answer» C. Pavlov | |
| 247. |
Vocal cords are stretched across_______? |
| A. | Larynx |
| B. | Pharynx |
| C. | Golttis |
| D. | None of these |
| Answer» D. None of these | |
| 248. |
Voice box is another name used for___________? |
| A. | Buccal cavity |
| B. | Pharynx |
| C. | Larynx |
| D. | Chest Cavity |
| Answer» D. Chest Cavity | |
| 249. |
Visible light used in photosynthesis ranges from:__________? |
| A. | 300 – 700 nm in wavelength |
| B. | 350 – 750 nm in wavelength |
| C. | 380 – 750 nm in wavelength |
| D. | 390 – 790 nm in wavelength. |
| Answer» D. 390 – 790 nm in wavelength. | |
| 250. |
Viruses are __________ smaller than bacteria? |
| A. | 10 – 100 times |
| B. | 10 – 1000 times |
| C. | 100 – 1000 times |
| D. | 1000 – 10000 times |
| Answer» C. 100 – 1000 times | |