MCQOPTIONS
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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.
| 1151. |
All of the following are coelomates except:____________? |
| A. | Deuterosomes |
| B. | Proterosomes |
| C. | Hemichordates |
| D. | Aschelminthes |
| Answer» E. | |
| 1152. |
All insects have how many parts of legs? |
| A. | 4 |
| B. | 2 |
| C. | 3 |
| D. | 6 |
| Answer» D. 6 | |
| 1153. |
All chromosomes other than ‘sex’ chromosome are called __________ ? |
| A. | Autosomes |
| B. | Acentric chromosomes |
| C. | Metacentric Chromosomes |
| D. | Telocentric chromosomes |
| Answer» B. Acentric chromosomes | |
| 1154. |
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 |
| Answer» C. Regulation of sleep and emotions | |
| 1155. |
Air contains __________ % of CO2 ? |
| A. | 0.02-0.03 |
| B. | 0.03-0.04 |
| C. | 0.04-0.05 |
| D. | 0.05-0.06 |
| Answer» C. 0.04-0.05 | |
| 1156. |
Aerating openings formed in the bark through which exchange of gases takes place and water is lost in the form of vapours are___________? |
| A. | Hydathods |
| B. | Stomata |
| C. | Lenticels |
| D. | None of these |
| Answer» D. None of these | |
| 1157. |
Adult human brain is about_________% of the total body weight. |
| A. | 2% |
| B. | 3% |
| C. | 7% |
| D. | 8% |
| Answer» B. 3% | |
| 1158. |
Adult birds normally possess only one functional____________? |
| A. | Ureter |
| B. | Ovary |
| C. | Lung |
| D. | Testis |
| Answer» C. Lung | |
| 1159. |
Addition of salts and other solutes from other cells into xylem sap, __________ the water potential of the xylem sap |
| A. | Increases |
| B. | Lowers |
| C. | Doesn’t effect |
| D. | Maintains |
| Answer» C. Doesn’t effect | |
| 1160. |
Active transport is dependent on____________? |
| A. | Photosynthesis |
| B. | Respiration |
| C. | Photophosporylation |
| D. | None of these |
| Answer» C. Photophosporylation | |
| 1161. |
Active site of Rubisco is evolved to bind? |
| A. | CO2 |
| B. | O2 |
| C. | H2O |
| D. | All of these |
| Answer» E. | |
| 1162. |
Actin and myosin are the basic proteins involved in contractile machinery of our body to which type of proteins do they belong____________? |
| A. | Globular proteins |
| B. | Fibrous Proteins |
| C. | Both a and b |
| D. | None of these |
| Answer» C. Both a and b | |
| 1163. |
Acromegaly is caused due to oversecretion of____________? |
| A. | STH |
| B. | TSH |
| C. | ACTH |
| D. | Thyroxin |
| Answer» E. | |
| 1164. |
Acetabularia mediterranea has a cap of _________ ? |
| A. | Regular shape |
| B. | Circular shape |
| C. | Triangular shape |
| D. | Cone shape |
| Answer» B. Circular shape | |
| 1165. |
Acetabularia is a kind of __________ ? |
| A. | Fungi |
| B. | Protist |
| C. | Multicellular alga |
| D. | Unicellular alga |
| Answer» E. | |
| 1166. |
Accurate name given to blood is ___________ ? |
| A. | Red fluid |
| B. | Hemoglobin |
| C. | Fluid tissue |
| D. | Plasma |
| Answer» D. Plasma | |
| 1167. |
Accumulation of lipid molecules in brain cells lead to____________? |
| A. | paralysis |
| B. | oedema |
| C. | mental retardation |
| D. | all of these |
| Answer» D. all of these | |
| 1168. |
Accumulation of lipid molecules in brain cells lead to__________? |
| A. | paralysis |
| B. | oedema |
| C. | mental retardation |
| D. | all of these |
| Answer» D. all of these | |
| 1169. |
According to two kingdom classification fungi were placed in kingdom___________? |
| A. | Plantae |
| B. | Animalia |
| C. | Protista |
| D. | Fungi |
| Answer» B. Animalia | |
| 1170. |
According to modern system of taxonomy, living organisms have been classified into? |
| A. | Three Kingdoms |
| B. | Five Kingdoms |
| C. | Two Kingdoms |
| D. | Six Kingdoms |
| Answer» C. Two Kingdoms | |
| 1171. |
According to Lamarch evolution occurred as the result of__________? |
| A. | Natural selection |
| B. | The theory of recapitulation |
| C. | Inheritance of acquired characters |
| D. | Over production |
| Answer» D. Over production | |
| 1172. |
According to cohesion-tension theory, tension is created by__________________? |
| A. | Hydrogen bonding |
| B. | Transpiration |
| C. | Adhesion |
| D. | Root prerssure |
| Answer» C. Adhesion | |
| 1173. |
Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering______________? |
| A. | Gibberellins |
| B. | Cytokinins |
| C. | Auxins |
| D. | Ethene |
| Answer» B. Cytokinins | |
| 1174. |
About __________ of the body weight of a mammal is water ? |
| A. | 60% |
| B. | 65% |
| C. | 70% |
| D. | 75% |
| Answer» D. 75% | |
| 1175. |
About __________ % of photosynthesis is carried by terrestrial plants, while rest occurs in ocean, lakes, and ponds? |
| A. | 10% |
| B. | 20% |
| C. | 30% |
| D. | 40% |
| Answer» B. 20% | |
| 1176. |
A virion is______________? |
| A. | Virus |
| B. | Viral protein |
| C. | Viral lysozyme |
| D. | Viral gene |
| Answer» B. Viral protein | |
| 1177. |
A Vegetable containing sulphur is____________? |
| A. | Potato |
| B. | Cabbage |
| C. | Brinjal |
| D. | Pumpkin |
| Answer» C. Brinjal | |
| 1178. |
A three dimensional dcavity bearing a specific charge by which the enzyme reacts with its substrate is called_________________? |
| A. | Active site |
| B. | Binding site |
| C. | Catalytic site |
| D. | Allosteric site |
| Answer» B. Binding site | |
| 1179. |
A substance which binds at the active site of the enzyme but does not result in the formation of the products is called________________? |
| A. | Irreversible inhibitor |
| B. | Reversible inhibitor |
| C. | Competitive inhibitor |
| D. | Non-competitive inhibitor |
| Answer» D. Non-competitive inhibitor | |
| 1180. |
A structure formed by groups of similar cells organized into loose sheetsor bundles performing similar functions is called as________? |
| A. | An organ |
| B. | An organism |
| C. | A Tissue |
| D. | A Cell |
| Answer» D. A Cell | |
| 1181. |
A structure formed by groups of similar cells organized into loose sheets or bundles performing similar functions is called as: |
| A. | An organ |
| B. | An organism |
| C. | A Tissue |
| D. | A Cell |
| Answer» D. A Cell | |
| 1182. |
A stone measuring 0.4 cm, blocking the outlet of renal pelvis resulting in mild to moderate tract obstruction. Which of the following technique will be opted to remove this stone? |
| A. | Kidney surgery |
| B. | Burring a hole and removing the stone manually (nephrolithotomy) |
| C. | Extracorporeal Shock wave lithotripsy |
| D. | None of these |
| Answer» D. None of these | |
| 1183. |
A sponge of Antarctica which is more than a meter tall is____________? |
| A. | Scolymastra joubini |
| B. | Euplectella |
| C. | Spongilla |
| D. | Leucoselenia |
| Answer» B. Euplectella | |
| 1184. |
A smallest contractile unit of muscle contraction called sarcomere is the area between two: |
| A. | H- zone |
| B. | M- Line |
| C. | Z- Line |
| D. | A band |
| Answer» D. A band | |
| 1185. |
A series of hypothesis supported by the results of many tests is called ? |
| A. | Scientific law |
| B. | Theory |
| C. | Data |
| D. | Deduction |
| Answer» C. Data | |
| 1186. |
A pressure created by active secretion of salts and other solutes from other cells into xylem sap is called___________? |
| A. | Transpiration pull |
| B. | Root pressure |
| C. | Osmotic pressure |
| D. | None of these |
| Answer» C. Osmotic pressure | |
| 1187. |
A painful burning sensation produced in the chest cavity usually associated with the back flush of acidic chyme into the esophagus is__________? |
| A. | Pyrolysis |
| B. | Pyrosis |
| C. | Peristalsis |
| D. | Dyspepsia |
| Answer» C. Peristalsis | |
| 1188. |
A moth is closely related to_________? |
| A. | Wasp |
| B. | Beetle |
| C. | Cricket |
| D. | Butterfly |
| Answer» E. | |
| 1189. |
A large regional community primarily determined by climate is called__________? |
| A. | Population |
| B. | Community |
| C. | Biome |
| D. | Habitat |
| Answer» D. Habitat | |
| 1190. |
A large regional community primarily determined by climate is called ? |
| A. | Population |
| B. | Community |
| C. | Biome |
| D. | Habitat |
| Answer» D. Habitat | |
| 1191. |
A joint formed between humerus, radius and ulna is an example of__________? |
| A. | Immovable joint |
| B. | Slightly movable joint |
| C. | Freely movable joint |
| D. | Fibrous joint |
| Answer» D. Fibrous joint | |
| 1192. |
A group of very similar inter breeding organisms constitutes? |
| A. | Biosphere |
| B. | Ecosystem |
| C. | Population |
| D. | Species |
| Answer» E. | |
| 1193. |
A group of similar cells that perform a specific function is: |
| A. | Organ |
| B. | Tissues |
| C. | Organelle |
| D. | Organ System |
| Answer» C. Organelle | |
| 1194. |
A group of ribosomes attached to mRNA is known as___________? |
| A. | Polymer |
| B. | Polypeptide |
| C. | Polysomes |
| D. | Monomer |
| Answer» D. Monomer | |
| 1195. |
A group of 8 cocci is called______________? |
| A. | Diplococci |
| B. | Octococci |
| C. | Tetrad |
| D. | Sarcina |
| Answer» E. | |
| 1196. |
A genome is___________? |
| A. | Appearance of an individual |
| B. | Genetic basis of few characters |
| C. | Full set of genes of an individual |
| D. | All of these |
| Answer» D. All of these | |
| 1197. |
A fracture hematoma has____________? |
| A. | Healing properties |
| B. | Destructive properties |
| C. | Neutralizing properties |
| D. | Dead cells |
| Answer» E. | |
| 1198. |
A disease of longs in which inside of the lungs is damaged resulting in cough and fever? |
| A. | Lung cancer |
| B. | Asthma |
| C. | Emphysema |
| D. | Pulmonary tuberculosis |
| Answer» D. Pulmonary tuberculosis | |
| 1199. |
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 |
| Answer» D. None | |
| 1200. |
A compound produced as a result of a chemical reaction of an alcohol with an acid in which water molecule is released is called________________? |
| A. | Monosaccharide |
| B. | Fatty acid |
| C. | Neutral lipid |
| D. | Nucleic acid |
| Answer» D. Nucleic acid | |