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.
| 1051. |
By which of the following mechanism unicellular yeast reproduce? |
| A. | Sporing |
| B. | Conidiation |
| C. | Budding |
| D. | Fragmentation |
| Answer» D. Fragmentation | |
| 1052. |
Bryophtes are called amphiabians of plant world because: |
| A. | Bryophytes like amphibian ancestors are one of the most primitive organisms in this world |
| B. | Bryophytes like amphibian live in damp shady places and close to water body. |
| C. | Amphibians have close relation with bryophytes in their habitat. |
| D. | All of these |
| Answer» C. Amphibians have close relation with bryophytes in their habitat. | |
| 1053. |
Brown fat present in certain mammals is specialized in___________? |
| A. | Providing insulation in cold environment |
| B. | Providing insulation in hot environment |
| C. | Rapid heat production |
| D. | Controlling heat production |
| Answer» D. Controlling heat production | |
| 1054. |
Brown algae are also known as___________? |
| A. | Phaeophyta |
| B. | Rhodophyta |
| C. | Pyrrophyta |
| D. | Chrysophyta |
| Answer» B. Rhodophyta | |
| 1055. |
Breeders have developed new and better varieties of food items by using which technique? |
| A. | Pasteurization |
| B. | Hydroponic culture technique |
| C. | Genetic engineering |
| D. | Biological control techniques |
| Answer» D. Biological control techniques | |
| 1056. |
Breaking of terminal phosphate of ATP releases about ___________ Kcal of energy? |
| A. | 6.1 |
| B. | 6.3 |
| C. | 7.1 |
| D. | 7.3 |
| Answer» E. | |
| 1057. |
Breakdown of large molecules into smaller ones utilizing water molecules is_________? |
| A. | Hydration |
| B. | Hydrolysis |
| C. | Dehydration synthesis |
| D. | Electrolysis |
| Answer» C. Dehydration synthesis | |
| 1058. |
branches of biology and medicine concerned with the structure and function of plant and animal cells is called___________? |
| A. | Nephrology |
| B. | Semiology |
| C. | Orology |
| D. | Cytology |
| Answer» E. | |
| 1059. |
Branch of biology which deals with the study of chemical components and chemical processes in living organisms is called________________? |
| A. | Molecular biology |
| B. | Physiology |
| C. | Biochemistry |
| D. | Atomic biology |
| Answer» D. Atomic biology | |
| 1060. |
Both radial and bilateral symmetry is found in the phylum____________? |
| A. | Protozoa |
| B. | Porifera |
| C. | Echinodermata |
| D. | None of these |
| Answer» D. None of these | |
| 1061. |
Bony callus formation completes in___________? |
| A. | 2-3 weeks |
| B. | 3-4 weeks. |
| C. | 2-3 months. |
| D. | 3-4 months. |
| Answer» D. 3-4 months. | |
| 1062. |
Body is eel like in___________? |
| A. | Cyclostomata |
| B. | Chondrichthyes |
| C. | Osteichthyes |
| D. | None of these |
| Answer» B. Chondrichthyes | |
| 1063. |
Body is globular in_________? |
| A. | Cake urchin |
| B. | Sea Urchin |
| C. | Sea cucumber |
| D. | Brittle star |
| Answer» C. Sea cucumber | |
| 1064. |
BOD refers to the __________? |
| A. | Bidding of Dermatology |
| B. | Binding of Dirt |
| C. | Biochemical occupied Date |
| D. | Biochemical Oxygen demand |
| Answer» E. | |
| 1065. |
Blubber a thick layer of fat is present in___________? |
| A. | Fresh water mammals |
| B. | Terrestrial mammals |
| C. | Marine Mammals |
| D. | Flying mammals |
| Answer» D. Flying mammals | |
| 1066. |
Blood is carried towards the heart by __________? |
| A. | Arteries |
| B. | Capillaries |
| C. | Veins |
| D. | none of these |
| Answer» D. none of these | |
| 1067. |
Blood does not coagulate inside the body due to the presence of___________? |
| A. | Haemoglobin |
| B. | Fibrin |
| C. | Heparin |
| D. | Plasma |
| Answer» D. Plasma | |
| 1068. |
Biometry is the application of_______ in biology. |
| A. | Algebra |
| B. | Statistics |
| C. | Matrix |
| D. | Geometry |
| Answer» C. Matrix | |
| 1069. |
Biologist ‘Grass’ discovered the life cycle of plasmodium in_______? |
| A. | 1896 |
| B. | 1897 |
| C. | 1898 |
| D. | 1899 |
| Answer» D. 1899 | |
| 1070. |
Biological sciences have a set methodology and it is based on ? |
| A. | Experimental inquiry |
| B. | Esthetic preference |
| C. | Philosophical ideas |
| D. | Imaginations |
| Answer» B. Esthetic preference | |
| 1071. |
Biological organization is_____________? |
| A. | simple |
| B. | advance |
| C. | complex |
| D. | highly complex |
| Answer» E. | |
| 1072. |
Biological molecules (proteins) which catalyze a biochemical reaction and remain unchanged after completion of reaction are called_____________________? |
| A. | Cofactor |
| B. | Coenzymes |
| C. | Activator |
| D. | Enzymes |
| Answer» E. | |
| 1073. |
Biebs that are broke off from cell are called __________? |
| A. | Apoptotic bodies |
| B. | Necrosis bodies |
| C. | Tuberculosis bodies |
| D. | Cytokinetic bodies |
| Answer» B. Necrosis bodies | |
| 1074. |
Bean shaped cells in plants are_________? |
| A. | mesophyll cells |
| B. | xylem cells |
| C. | phloem cells |
| D. | guard cells |
| Answer» E. | |
| 1075. |
Bats & humming birds belong to___________? |
| A. | Endotherms |
| B. | Ectotherms |
| C. | Heterotherms |
| D. | Homeotherms |
| Answer» D. Homeotherms | |
| 1076. |
Based on molecular data euglenoids are thought to be closely related to___________? |
| A. | Dinoflagellates |
| B. | Zooflagellates |
| C. | Protozoans |
| D. | Algae |
| Answer» C. Protozoans | |
| 1077. |
Bacteriopahage that infect E. coli are called_____________? |
| A. | M type |
| B. | N type |
| C. | T type |
| D. | S type |
| Answer» D. S type | |
| 1078. |
Bacteriochlorophylls does not include________________? |
| A. | Chlorophyll e |
| B. | Chlorophyll d |
| C. | Chlorophyll a |
| D. | Chlorophyll c |
| Answer» D. Chlorophyll c | |
| 1079. |
Bacteria which grow either in the presence or absence of oxygen___________? |
| A. | Aerobic bacteria |
| B. | Anaerobic bacteria |
| C. | Facultative bacteria |
| D. | Microaerophilic |
| Answer» D. Microaerophilic | |
| 1080. |
Autotrophic organisms can exist in an exclusively ________________ environment? |
| A. | Organic |
| B. | Inorganic |
| C. | Wet |
| D. | Terrestrial |
| Answer» C. Wet | |
| 1081. |
Autophagosomes are____________? |
| A. | Those lysosomes which eat parts of their own cells to generate energy |
| B. | Those lysosomes which eat old and worn out cellular organelles |
| C. | Lysosomes which help in extracellular digestion |
| D. | Both a and b |
| Answer» E. | |
| 1082. |
Attachment of the bacteriophage with the receptor site on the bacterial cell wall involves_______________? |
| A. | Strong covalent bond between virion and the receptor site. |
| B. | Week chemical unior between them |
| C. | Both A and B depending upon the phage |
| D. | None of these |
| Answer» C. Both A and B depending upon the phage | |
| 1083. |
ATP is a an important molecule for its major function___________? |
| A. | As an energy currency of the cell |
| B. | As a coenzyme |
| C. | Both a and b |
| D. | None of these |
| Answer» B. As a coenzyme | |
| 1084. |
ATP are consumed during___________? |
| A. | Glycolysis |
| B. | Kreb’s cycle |
| C. | Light dependent phase |
| D. | none of these |
| Answer» B. Kreb’s cycle | |
| 1085. |
At which times there is no net gaseous exchange between leaves and the atmosphere. |
| A. | Day time |
| B. | Night time |
| C. | Dawn & Dusk |
| D. | Mid night |
| Answer» D. Mid night | |
| 1086. |
At which stage in the life cycle of Rhizopus meiosis takes place? |
| A. | Formation of sporangiophore via germination of zygospore |
| B. | Formation of spores in sporangia |
| C. | Fusion of two hyphae |
| D. | Formation of Zygote by fusion of gametangia |
| Answer» B. Formation of spores in sporangia | |
| 1087. |
At the induction of action potential opening of Na+ gate with influx of Na+ is a ___________ processes? |
| A. | Active transport |
| B. | Passive transport |
| C. | Diffusion |
| D. | none of these |
| Answer» C. Diffusion | |
| 1088. |
Astronauts may use which technique to grow fruits and vegetables ? |
| A. | Tissue culture techniques |
| B. | Cloning |
| C. | Pasterisation |
| D. | Hydroponic culture technique |
| Answer» E. | |
| 1089. |
Aschelminthes is also known as____________? |
| A. | Protozoans |
| B. | Eumatazoa |
| C. | Nematodes |
| D. | Protoctist ancestors |
| Answer» D. Protoctist ancestors | |
| 1090. |
Artherosclerosis is a major condition leading to__________? |
| A. | heart attack |
| B. | hypertension |
| C. | stroke |
| D. | tumor |
| Answer» B. hypertension | |
| 1091. |
Arterial blood contains _________ of CO2 per 100 ml of blood |
| A. | 54 ml |
| B. | 60 ml |
| C. | 64 ml |
| D. | 50 ml |
| Answer» E. | |
| 1092. |
_______ are the first group of invertebrates which have developed a closed circulatory system. |
| A. | Nematods |
| B. | Annelids |
| C. | Arthropods |
| D. | Molluscs |
| Answer» C. Arthropods | |
| 1093. |
___________ are needed as a source of energy for the vital activities of the body? |
| A. | Calcium |
| B. | Iron |
| C. | Water |
| D. | Carbohydrates |
| Answer» E. | |
| 1094. |
__________ are believed to have common origin with annelids. |
| A. | Nematods |
| B. | Arthropods |
| C. | Molluscs |
| D. | None of these |
| Answer» C. Molluscs | |
| 1095. |
Aquatic arthropods respire through__________? |
| A. | Spiracles |
| B. | Gills |
| C. | Book lungs |
| D. | Both b and c |
| Answer» E. | |
| 1096. |
Aquatic animals excrete nitrogenous waste commonly in the form of_____________? |
| A. | Ammonia |
| B. | Urea |
| C. | Uric acid |
| D. | Trimethylamine oxide |
| Answer» B. Urea | |
| 1097. |
Approximately _____ species of bacteria are known to cause diseases in humans. |
| A. | 100 |
| B. | 200 |
| C. | 300 |
| D. | 400 |
| Answer» C. 300 | |
| 1098. |
Any change in the environment of an organism is called___________? |
| A. | Stimulus |
| B. | Variation |
| C. | Response |
| D. | Reaction |
| Answer» B. Variation | |
| 1099. |
Anus is surrounded by _____ types of muscles? |
| A. | 2 |
| B. | 3 |
| C. | 1 |
| D. | 4 |
| Answer» B. 3 | |
| 1100. |
Antibodies play important role against microorganisms and other pathogens to which type of proteins do they belong________? |
| A. | Globular proteins |
| B. | Fibrous Proteins |
| C. | Both a and b |
| D. | None of these |
| Answer» B. Fibrous Proteins | |