Biology MCQ (Multiple Choice Questions) - SchoolingAxis

Biology MCQ (Multiple Choice Questions)

 Que- Purple non-sulphur bacteria is an example of___________? 

a. Heterotrophic bacteria  

b. Chemosynthetic bacteria  

c. Photosynthetic bacteria  

d. Saprotrophic bacteria 


Answer- Photosynthetic bacteria


Que- Example of bacteria requiring low concentration of oxygen is__________? 

a. Campylobactor  

b. spirocheta  

c. E-coli  

d. Pseudomonas 


Answer- Campylobactor


Que- The common waste material in bacteria is____________? 

a. Glycogen  

b. Lactic acid  

c. Ammonia  

d. Urea 


Answer- Lactic acid


Que- Which of the following contains genes for drug and disease resistance in bacteria? 

a. Necleotide  

b. Plasmid  

c. Mesosome  

d. Ribosome 


Answer- Plasmid


Que- Which of the following bacteria do not have flagella commonly__________? 

a. Cocci  

b. Bacilli  

c. Streptobacilli  

d. Vibrio 


Answer- Cocci


Que- A bacterium with tuft of flagella at both poles is called_____________? 

a. Lophotrichus  

b. Monotrichous  

c. Peritrichous  

d. Amphitrichous 


Answer- Amphitrichous


Que- Flagella originate from_______________? 

a. Cell membrane  

b. Cell wall  

c. Capsule  

d. Basal body 


Answer- Basal body


Que- Which of the following structure provides greater pathogenicity to the bacteria__________? 

a. Capsule  

b. Slime  

c. Cell Wall  

d. Cell membrane 


Answer- Slime


Que- Which of the following structure primarily helps in attachment of bacteria on various surfaces____________? 

a. Flagella  

b. Pili  

c. Both of these  

d. None of these 


Answer- Pili


Que- Cell wall is absent in___________? 

a. Cocci  

b. Bacilli  

c. Mycobacterium  

d. Mycoplasma 


Answer- Mycoplasma


Que- Cell wass of Archaeobacteria does not contain_____________________? 

a. Peptidoglycan  

b. Proteins  

c. Glycoproteins  

d. Polysaccharides 


Answer- Peptidoglycan


Que- Gram positive bacteria appear_______________? 

a. Purple  

b. Red  

c. Pink  

d. Blue 


Answer- Purple


Que- Extremely long molecule of DNA that is tightly folded to fit inside the cell component is called_____________? 

a. Nucleus  

b. Chromosome  

c. Chromatid  

d. Chromatin body 


Answer- Chromatin body


Que- All of the following are coelomates except:____________? 

a. Deuterosomes  

b. Proterosomes  

c. Hemichordates  

d. Aschelminthes 


Answer- Aschelminthes


Que- The radial symmetry is found in the animals of___________? 

a. Protozoa  

b. Porifera  

c. Cnidaria  

d. All of these 


Answer- Cnidaria


Que- Both radial and bilateral symmetry is found in the phylum____________? 

a. Protozoa  

b. Porifera  

c. Echinodermata  

d. None of these 


Answer- Echinodermata


Que- Of the following which one is not the characteristic of triploblasts? 

a. All of them have blood vascular system  

b. They may be coelomate pseudocoelomate or acoelomate  

c. They are included in grade bilaterian  

d. All of them have digestive system 


Answer- All of them have blood vascular system


Que- The animals in which coelom is formed due to splitting of mesocerm are known as____________? 

a. Pseudocoelous  

b. Schizocoelous  

c. Enterocoelous  

d. Emphicoelous 


Answer- Schizocoelous


Que- In some cases the blastomere can produce complete embryo the cleavage will be___________? 

a. Spiral and determinate  

b. Radial and indeterminate  

c. Spiral and indeterminate  

d. Radial and determinate 


Answer- Radial and indeterminate


Que- Of the following which one is non-cellular in most cases in animals? 

a. Mesenchyme  

b. Sclerenchyma  

c. Chlorenchyma  

d. Mesoderm 


Answer- Mesenchyme


Que- Aquatic arthropods respire through__________? 

a. Spiracles  

b. Gills  

c. Book lungs  

d. Both b and c 


Answer- Both b and c


Que- Circulatory system is open type in all of the following except:___________? 

a. Arthropoda  

b. Gastropoda  

c. Pelecypoda  

d. Cephalopoda 


Answer- Cephalopoda


Que- Shell of egg is leathery in appearance in___________? 

a. Amphibians  

b. Reptiles  

c. Birds  

d. Prototherians 


Answer- Reptiles


Que- Aschelminthes is also known as____________? 

a. Protozoans  

b. Eumatazoa  

c. Nematodes  

d. Protoctist ancestors 


Answer- Nematodes


Que- The name animal is derived from the word__________? 

a. Anima  

b. Anemia  

c. Aname  

d. All of these 


Answer- Anima


Que- All the animals of the grade radiata are____________? 

a. Diploblastic  

b. Triploblastic  

c. Both  

d. Unicellular 


Answer- Diploblastic


Que- The fate of each blastomere is foretold. The cleavage will be as____________? 

a. Spiral and indeterminate  

b. Radial and indeterminate  

c. Radial and indeterminate  

d. Spiral and determinate 


Answer- Spiral and determinate


Que- The system well developed in the acoelomate is___________? 

a. Excretory system  

b. Nervous system  

c. Transport system  

d. All of these 


Answer- All of these


Que- In acoelomates gut is ________ in origin. 

a. Ectodermal  

b. Endodermal  

c. Mesodermal  

d. None of these 


Answer- Endodermal


Que- Venus flower basket is also known as___________? 

a. Sycon  

b. Euplectella  

c. Leucoselenia  

d. Spongilla 


Answer- Euplectella


Que- The internal buds are known as__________? 

a. Spicules  

b. Choanocytes  

c. Gemmules  

d. None of these 


Answer- Gemmules


Que- The skeleton of the sponges is in the form of variously shaped needle like structures called___________? 

a. Stripules  

b. Spicules  

c. Brails  

d. Spines 


Answer- Spicules


Que- Gut in pseudocoelomates is made from___________? 

a. Ectoderm  

b. Mesoderm  

c. Endoderm  

d. All of these 


Answer- Endoderm


Que- Sperms are _________ in origin. 

a. Ectodermal  

b. Mesodermal  

c. Endodermal  

d. None of these 


Answer- Mesodermal


Que- Inner layers of the sponges are made up of__________? 

a. Pinacocytes  

b. Choanoderm  

c. Choanoytes  

d. Pinacoderm 


Answer- Choanoytes


Que- Of the following which one is not included in Proterostomes? 

a. Arthropods  

b. Hemichordates  

c. Annelids  

d. Molluses 


Answer- Hemichordates


Que- Coelom that develops from the archenteron as outpouching is__________? 

a. Pseudocoelom  

b. Enterocoelom  

c. Schizocoelom  

d. None of these 


Answer- Enterocoelom


Que- Of the following which one is not found in series proterostomia? 

a. Annelida  

b. Arthropoda  

c. Mollusea  

d. Echinodermata 


Answer- Echinodermata


Que- In most triploblasts after embryonic development the three layers are represented as___________? 

a. Separate layers of cells  

b. Structures formed from them  

c. Structures associated with them  

d. Their functions in body 


Answer- Structures formed from them


Que- The function of coelom is__________? 

a. To increase the size of the animals  

b. To help in the functioning of reproductive system  

c. To provide space for the development of organs and systems  

d. None of these 


Answer- To provide space for the development of organs and systems


Que- A sponge of Antarctica which is more than a meter tall is____________? 

a. Scolymastra joubini  

b. Euplectella  

c. Spongilla  

d. Leucoselenia 


Answer- Scolymastra joubini


Que- The sponges in which sperms develop first are included in the category of__________? 

a. Peritandrous  

b. Pertandrous  

c. Protendrous  

d. Protandrous 


Answer- Protandrous


Que- The skeleton of sponges is made up of___________? 

a. Calcium  

b. Silica  

c. Both of these  

d. None of these 


Answer- Both of these


Que- Sperms released in water are carried to the mesenchyme in sponges by__________? 

a. Amoeboid cell  

b. Stipules  

c. Spicules  

d. Spines 


Answer- Amoeboid cell


Que- The single main opening of the sponge cavity is____________? 

a. Osculum  

b. Ostia  

c. Spongocoel  

d. None of these 


Answer- Osculum


Que- 80% of the food of sponges consists of__________? 

a. Detrital organic particles  

b. Zooplankton and small animals  

c. Phytoplanktons  

d. all of these 


Answer- Detrital organic particles


Que- In sponges fertilization takes place in____________? 

a. Ectoderm  

b. Mesenchyme  

c. Endoderm  

d. Uterus 


Answer- Mesenchyme


Que- Which of the following are motile zooids in cnidarians? 

a. Polyps  

b. Medusae  

c. Both of these  

d. None of these 


Answer- Medusae


Que- Mammals became dominant in__________? 

a. Proterozoic era  

b. Mesozoic era  

c. Paleozoic era  

d. Cenozoic era 


Answer- Cenozoic era


Que- Which of the following fishes contained lungs? 

a. Lamprey  

b. Perch  

c. Plaice  

d. Dipnoi 


Answer- Dipnoi


Que- Notochord is present throughout life in___________? 

a. Urochordates  

b. Cephalochordates  

c. Chordates  

d. Vertebrates 


Answer- Cephalochordates


Que- Body is eel like in___________? 

a. Cyclostomata  

b. Chondrichthyes  

c. Osteichthyes  

d. None of these 


Answer- Cyclostomata


Que- Body is globular in_________? 

a. Cake urchin  

b. Sea Urchin  

c. Sea cucumber  

d. Brittle star 


Answer- Sea Urchin


Que- Second largest phylum of invertebrates is____________? 

a. Porifera  

b. Arthropoda  

c. Mollusca  

d. Chordata 


Answer- Mollusca


Que- Main blood vessel of arthropods usually: 

a. Lies on dorsal side  

b. Lies on ventral side  

c. Lies on lateral side  

d. Is not present 


Answer- Lies on dorsal side


Que- _______ are the first group of invertebrates which have developed a closed circulatory system. 

a. Nematods  

b. Annelids  

c. Arthropods  

d. Molluscs 


Answer- Annelids


Que- Of the following which one is not the characteristic of Kingdom Animalia. 

a. All animals are ingestive heterotrophs  

b. All animals are eukaryotes  

c. All animals develop from the dissimilar gametes i.e. large sperm and small egg.  

d. It is largest kingdom. 


Answer- All animals develop from the dissimilar gametes i.e. large sperm and small egg.


Que- Coelom is lined by__________? 

a. Parietal mesoderm  

b. Visceral mesoderm  

c. Mesoderm  

d. Both A & B 


Answer- Both A & B


Que- Porifera range in size from__________? 

a. Few millimeter wide to more than one meter tall  

b. Few centimeter wide to more than one meter tall  

c. Few decimeter wide to more than one meter tall  

d. One meter wide to more than millimeter tall. 


Answer- Few millimeter wide to more than one meter tall


Que- Enteron in coelenterates acts as___________? 

a. Digestive cavity  

b. Body cavity  

c. Transporting cavity  

d. all of these 


Answer- all of these


Que- All of the following coelenterates show alternation of generation except: 

a. Hydra  

b. Obelia  

c. Aurelia  

d. None of these 


Answer- Hydra


Que- Excretory system of platyhlminthes consists of___________? 

a. Nephridia  

b. Flame cells  

c. Malpighian tubules  

d. Nephrons 


Answer- Flame cells


Que- Pseudocoelem develops from____________? 

a. Blastopore  

b. Plastoquinone  

c. Blastocoel  

d. Splitting of mesoderm 


Answer- Blastocoel


Que- Exoskeoeton of coelenterates terates is made up to__________? 

a. Calcium   

b. Silica  

c. Chitin  

d. Both A & B 


Answer- Calcium 


Que- All of the following are true for Platyhelminthes except____________? 

a. Flatwarms  

b. Triploblastic  

c. Coelomate  

d. Bilateral symmetry 


Answer- Coelomate


Que- Nervous system of nematods consists of? 

a. Ventral nerve cord  

b. Dorsal nerve cord  

c. Lateral nerve cord  

d. All of these 


Answer- All of these


Que- Polychaeta have____________? 

a. Tentacles  

b. Palps  

c. Eyes  

d. All of these 


Answer- All of these


Que- __________ are believed to have common origin with annelids. 

a. Nematods  

b. Arthropods  

c. Molluscs  

d. None of these 


Answer- Arthropods


Que- Mantle in molluscs is present over____________? 

a. Head  

b. Ventral muscular foot  

c. Dorsal visceral region  

d. All of these 


Answer- Dorsal visceral region


Que- Prechordates is another name used for___________? 

a. Echinoderms  

b. Hemichordates  

c. Vertebrates  

d. Chordates 


Answer- Hemichordates


Que- True metamorphosis is not present in________? 

a. Crustacea  

b. Insecta  

c. Arachnida  

d. Myriapoda 


Answer- Arachnida


Que- Pin warm is common name used for__________? 

a. Rhabditis  

b. Enterobius vermicularis  

c. Ancylostoma duodenale  

d. Taenia solium 


Answer- Enterobius vermicularis


Que- Which system is present in nematodes? 

a. Sac – like digestive system  

b. Tube – like digestive system  

c. Circulatory system  

d. Respiratory system 


Answer- Tube – like digestive system


Que- Which of following system is segmentally arranged in annelids? 

a. Excretory system  

b. Digestive system  

c. Criculatory system  

d. Nervous system 


Answer- Criculatory system


Que- The number of chromosomes in human cell is_____________? 

a. 48.0 

b. 44.0 

c. 46.0 

d. 26.0 


Answer- 46.0


Que- The resolving power of electric microscope is____________? 

a. 0.2 mm  

b. 0.2 nm  

c. 0.2 m  

d. none of these 


Answer- 0.2 nm


Que- Free living example of Platyhelminthes is____________? 

a. Dugesia   

b. Fasciola  

c. Taenia  

d. None of these 


Answer- Dugesia 


Que- Psedudocoelom is character of____________? 

a. Coelenterates  

b. Platyhelminthes  

c. Aschelminthes  

d. Annelids 


Answer- Aschelminthes


Que- Which of the following statement about plants is incorrect? 

a. All are eukaryotes  

b. They are multicellular.  

c. Non-motile organisms  

d. They Are heterotrophes 


Answer- They Are heterotrophes


Que- Antheridia and archegonia are born on ______________ in bryophytes. 

a. Sporophyte  

b. Gametophyte  

c. Both of these  

d. None of these 


Answer- Gametophyte


Que- Which of the following of bryophytes are the simplest one? 

a. Porella  

b. Funaria  

c. Anthocerus  

d. Polytrichum 


Answer- Porella


Que- Ferns are included in__________? 

a. Psilopsida  

b. Lycopsida  

c. Sphenopsida  

d. Pteropsida 


Answer- Pteropsida


Que- in which cell ribosome are of large size and present either on endoplasmic reticulum or free in cytoplasm? 

a. prokaryotic  

b. eukaryotic  

c. both  

d. all the above 


Answer- eukaryotic


Que- mitochondria in heart muscles are nearly_____________? 

a. 400.0 

b. 375.0 

c. 350.0 

d. 325.0 


Answer- 350.0


Que- mitochondria in ear lobe cells are nearly____________? 

a. 40.0 

b. 50.0 

c. 55.0 

d. 60.0 


Answer- 50.0


Que- four daughter cells are given to rise during the process of____________? 

a. meiosis  

b. mitosis  

c. cell division  

d. none of these 


Answer- meiosis


Que- which of the following gives to rise two daughter cell during cell division? 

a. meiosis  

b. mitosis  

c. both a & b  

d. none of these 


Answer- mitosis


Que- in animals meiosis produces____________? 

a. spores  

b. gametes  

c. both a & b  

d. all the above 


Answer- gametes


Que- prokaryotic and eukaryotic are two types of___________? 

a. cells  

b. tissues  

c. organs  

d. organisms 


Answer- cells


Que- cells are of__________types? 

a. 4.0 

b. 3.0 

c. 2.0 

d. 1.0 


Answer- 2.0


Que- Gametophyte of Psilopsida develops a symbiotic association with which of the following______________? 

a. Algae  

b. Bacteria  

c. Protozoa  

d. Fungus 


Answer- Fungus


Que- Which of the following is an example of the living member of Psilopsida________________? 

a. Rhynia  

b. Psilophyton  

c. Psilotum  

d. Cooksonia 


Answer- Psilotum


Que- In term of spore production Selaginella is characterized by________________? 

a. Homosporous  

b. Hetrosporous  

c. Both depending upon the conditions  

d. None of these 


Answer- Hetrosporous


Que- Which of the following tracheophytes are also called arthrophytes______________? 

a. Psilopsids  

b. Lycopsids  

c. Sphenopsids  

d. Prteropsids 


Answer- Sphenopsids


Que- Equistem is an example of___________? 

a. Psilopsida  

b. Lycopsida  

c. Sphenopsida  

d. Prteropsida 


Answer- Sphenopsida


Que- 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- Bryophytes like amphibian live in damp shady places and close to water body.


Que- Today the land habitat is dominated by__________________? 

a. Fungi  

b. Gymnosperms  

c. Angiosperms  

d. Tracheophytes 


Answer- Tracheophytes


Que- Hornwarts are included in sub-class of __________? 

a. Anthoceropsida  

b. Bryopsida  

c. Hepaticopsida  

d. Psilopsida 


Answer- Anthoceropsida


Que- Of the following which one is not the characteristic of the plants included in psilopsida_____________? 

a. Gametophyte is colourless  

b. They have mycorrhizal association  

c. Rhizoids bear Rhizome  

d. Aerial branches have veinless outgrowths 


Answer- Rhizoids bear Rhizome


Que- Horsetails are included in class of____________? 

a. Sphenopeida  

b. Lycopsida  

c. Psilopsida  

d. Pteropsida 


Answer- Sphenopeida

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