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.
| 1101. |
Antherozoids the male gamete in bryophytes are attracted towards Archegonium i.e. female sex organ by____________? |
| A. | Phototactic phenomenon |
| B. | Chemotactic phenomenon |
| C. | Geotropic phenomenon |
| D. | Chemotropic movement |
| Answer» C. Geotropic phenomenon | |
| 1102. |
Antheridiophore and archegoniophore are found in_____________? |
| A. | Marchantia |
| B. | Funaria |
| C. | Both of these |
| D. | None of these |
| Answer» D. None of these | |
| 1103. |
Antheridia and archegonia are born on ______________ in bryophytes. |
| A. | Sporophyte |
| B. | Gametophyte |
| C. | Both of these |
| D. | None of these |
| Answer» C. Both of these | |
| 1104. |
Another name for liver is called ___________ ? |
| A. | Hepar |
| B. | Hepta |
| C. | Heptum |
| D. | Hilum |
| Answer» B. Hepta | |
| 1105. |
Annual rainfall in grassland is about_____________? |
| A. | More than 2500 mm |
| B. | 750-1500 mm |
| C. | 250-750 mm |
| D. | Less than 250 mm |
| Answer» D. Less than 250 mm | |
| 1106. |
Animals that eat plants are called___________________? |
| A. | Herbivores |
| B. | Consumer |
| C. | Carnivores |
| D. | Omnivores |
| Answer» B. Consumer | |
| 1107. |
Animals with greatest number of similarities are grouped together in a/an___________? |
| A. | Phylum |
| B. | Family |
| C. | Genus |
| D. | Order |
| Answer» D. Order | |
| 1108. |
Animals that produce metabolic heat at low level and also absorb heat from the surroundings are called__________? |
| A. | Endotherms |
| B. | Ectotherms |
| C. | Heterotherms |
| D. | Homeotherms |
| Answer» D. Homeotherms | |
| 1109. |
Animals of which class of arthropoda are present everywhere_____________? |
| A. | Crustacean |
| B. | Insecta |
| C. | Arachnida |
| D. | Myriapoda |
| Answer» C. Arachnida | |
| 1110. |
Animals living in the Tree trunks are known as___________? |
| A. | Arboreal |
| B. | Volant |
| C. | Amphibious |
| D. | Aquaticx |
| Answer» B. Volant | |
| 1111. |
Animals obtain carbohydrates mainly from___________? |
| A. | Glucose |
| B. | Starch |
| C. | Sucrose |
| D. | Glycogen |
| Answer» C. Sucrose | |
| 1112. |
Animals fats are ______________ atroom temperature? |
| A. | Liquids |
| B. | Gases |
| C. | Solids |
| D. | None of these |
| Answer» D. None of these | |
| 1113. |
An unbroken series of species arranged in ancestors to descendent sequence with each later species having evolved from one that immediately preceded it is called? |
| A. | Biome |
| B. | Phyletic lineage |
| C. | Community |
| D. | Population |
| Answer» C. Community | |
| 1114. |
An isolated virus is not considered living since it________________? |
| A. | Separates in to two inner parts |
| B. | Can not metabolize |
| C. | Rapidly looses its Genome chemical inert |
| D. | Is coated with an air tight shield |
| Answer» C. Rapidly looses its Genome chemical inert | |
| 1115. |
An insulin molecule consists of _________ polypeptide chains? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 1116. |
An infectious disorder of respiratory system is_________________? |
| A. | Cancer |
| B. | Asthma |
| C. | Tuberculosis |
| D. | Emphysema |
| Answer» D. Emphysema | |
| 1117. |
An increrase in plant girth due to activity of _____________ is called secondary growth? |
| A. | Cork cambium |
| B. | Pith |
| C. | Vascular cambium |
| D. | Both a and c |
| Answer» E. | |
| 1118. |
An illness which largely affects girls usually just after the onset of puberty. |
| A. | Bulimia nervosa |
| B. | Obesity |
| C. | Anorexia nervosa |
| D. | None of these |
| Answer» D. None of these | |
| 1119. |
An example of codominance is______________? |
| A. | A’ blood group |
| B. | B’ blood group |
| C. | O’ blood group |
| D. | AB’ blood group |
| Answer» E. | |
| 1120. |
An enzyme which converts a dipeptide into separate amino acids is an example of__________? |
| A. | Decarboxylase |
| B. | Hydrolase |
| C. | Oxidoreductase |
| D. | Transferase |
| Answer» C. Oxidoreductase | |
| 1121. |
An enzyme which can convert single stranded RNA into double stranded viral DNA is called____________? |
| A. | DNAase |
| B. | RNAase |
| C. | DNA polymerase |
| D. | Reverse Transcriptase |
| Answer» E. | |
| 1122. |
An educated guess is called: |
| A. | Accumulated Data |
| B. | Observation |
| C. | Hypothesis |
| D. | Conclusion |
| Answer» D. Conclusion | |
| 1123. |
An association in which fungal hyphae penetrate the outer cells of the plant root forming coils swellings and minute branches and also extend out into surrounding soil is called______________? |
| A. | Mycorrizael association |
| B. | Endomycorrhizae |
| C. | Ectomycorrhizae |
| D. | Lichen |
| Answer» C. Ectomycorrhizae | |
| 1124. |
An antibody is made of _________ polypeptide chains? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 1125. |
An activated enzyme consisting of polypeptide chain and a cofactor is called_______________? |
| A. | Apoenzyme |
| B. | Holoenzyme |
| C. | Activated enzyme |
| D. | Both b and c |
| Answer» E. | |
| 1126. |
Amphoixus is a__________? |
| A. | Chordate |
| B. | Protochordate |
| C. | Lower chordate |
| D. | All of these |
| Answer» E. | |
| 1127. |
Amphibians are considered to be evolved from___________? |
| A. | Newts |
| B. | Varanope |
| C. | Dipnoi |
| D. | Hagfishes |
| Answer» D. Hagfishes | |
| 1128. |
Amount of water required to excrete 1gN of Urea is_________? |
| A. | 1 ml |
| B. | 50 ml |
| C. | 100 ml |
| D. | 150 ml |
| Answer» C. 100 ml | |
| 1129. |
Among the followings which is the most longest supportive cell? |
| A. | Tracheids |
| B. | Sclereids |
| C. | Trachea |
| D. | Collenchyma cells |
| Answer» B. Sclereids | |
| 1130. |
Among the following organisms which shows the best adaptations for locomotion? |
| A. | Amoeba |
| B. | Earthworm |
| C. | Reptiles |
| D. | Amphibians |
| Answer» D. Amphibians | |
| 1131. |
Amoeboid movements and movement of cyclosis is due to_________? |
| A. | Microfilaments |
| B. | Microtubules |
| C. | Intermediate filaments |
| D. | Cytoskeleton |
| Answer» B. Microtubules | |
| 1132. |
Amoeba secretes digestive enzymes to hydrolyse _________ ? |
| A. | Starch |
| B. | Sugar |
| C. | Proteins |
| D. | All of these and fats |
| Answer» E. | |
| 1133. |
Amoeba moves in water with the help of locomotory organs called_________? |
| A. | tube feet |
| B. | cilia |
| C. | pseudopodia |
| D. | flagella |
| Answer» D. flagella | |
| 1134. |
Amoeba can move with the help of? |
| A. | Flagella |
| B. | Pseudopodia |
| C. | Water |
| D. | Cilia |
| Answer» C. Water | |
| 1135. |
Amoeba belongs to which kingdom______________? |
| A. | Prokaryotae |
| B. | Plantae |
| C. | Monera |
| D. | Protista |
| Answer» E. | |
| 1136. |
Alternation of generations is absent in___________? |
| A. | Hydration |
| B. | Obelia |
| C. | Jelly fish |
| D. | Physalia |
| Answer» B. Obelia | |
| 1137. |
Allium cepa is the scientific name of______________? |
| A. | Onion |
| B. | Amaltas |
| C. | Potato |
| D. | Tomato |
| Answer» B. Amaltas | |
| 1138. |
All the animals of the grade radiata are____________? |
| A. | Diploblastic |
| B. | Triploblastic |
| C. | Both |
| D. | Unicellular |
| Answer» B. Triploblastic | |
| 1139. |
All such fungi in which sexual phase has not been observed are present in___________? |
| A. | Zygomycota |
| B. | Ascomycota |
| C. | Basidiomycota |
| D. | Deuteromycota |
| Answer» E. | |
| 1140. |
All plants do not possess___________? |
| A. | Lenticels |
| B. | Cuticle |
| C. | Stomata |
| D. | All of these |
| Answer» B. Cuticle | |
| 1141. |
All phostosynthetic euglenoids lose their chlorophyll when grown in dark and obtain their nutrients heterotrophically this statement is___________? |
| A. | True |
| B. | False |
| C. | May be true may be false |
| D. | Unpredictable |
| Answer» C. May be true may be false | |
| 1142. |
All of the insectivorous plants are true________________? |
| A. | Heterotrophs |
| B. | Autotrophes |
| C. | Carnivores |
| D. | Saprotrophs |
| Answer» C. Carnivores | |
| 1143. |
All of the follwing are blood clots except:___________? |
| A. | Thrombus |
| B. | Embolus |
| C. | Atheroma |
| D. | Hematoma |
| Answer» D. Hematoma | |
| 1144. |
All of the following veins carry deoxygenated blood except |
| A. | Superior vena cava |
| B. | Inferior vena cava |
| C. | Hepatic vein |
| D. | Pulmonary vein |
| Answer» E. | |
| 1145. |
All of the following contain cartilage except:___________? |
| A. | Larynx |
| B. | Trachea |
| C. | Bronchi |
| D. | Bronchioles |
| Answer» E. | |
| 1146. |
All of the following coelenterates show alternation of generation except: |
| A. | Hydra |
| B. | Obelia |
| C. | Aurelia |
| D. | None of these |
| Answer» B. Obelia | |
| 1147. |
All of the following are true for Platyhelminthes except____________? |
| A. | Flatwarms |
| B. | Triploblastic |
| C. | Coelomate |
| D. | Bilateral symmetry |
| Answer» D. Bilateral symmetry | |
| 1148. |
All of the following are similarities between nervous and endocrine system except:_____________? |
| A. | Produce chemical messengers |
| B. | Release chemical messengers in extracellular space |
| C. | Homestatic in function |
| D. | Having slow but prolonged effects |
| Answer» E. | |
| 1149. |
All of the following are involved in nitrification except |
| A. | Nitrobacter |
| B. | Nitrosomonas |
| C. | Rhizohium |
| D. | All of these |
| Answer» D. All of these | |
| 1150. |
All of the following are elements that plants need in very small amounts except___________? |
| A. | Iron |
| B. | Hydrogen |
| C. | Chlorine |
| D. | Copper |
| Answer» C. Chlorine | |