MCQs of Biology 2nd Year and More

mcqs of biology 2nd year
mcqs of biology 2nd year

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MCQs of Biology 2nd Year and More

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MCQs of Biology 2nd Year and More

601. Golden algae are also known as___________?

A. Chrysophyta
B. Phaeophyta
C. Pyrrophyta
D. Rhodophyta

602. The drfinite shape to ciliates is given by____________?

A. Pellicle
B. Penicle
C. Calcium
D. Cell wall

603. Brown algae are also known as___________?

A. Phaeophyta
B. Rhodophyta
C. Pyrrophyta
D. Chrysophyta

604. Chalk is gradually formed of dead______________?

A. Actinopods
B. Foraminiferans
C. Apicomplexans
D. Radiolarians

605. The only group of algae having no flagellated motile cells at any stage is___________?

A. Chrysophyta
B. Phaeophyta
C. Pyrrophyta
D. Rhodophyta

606. Of the following which one has glassy shells________________?

A. Radiolarians
B. Forams
C. Both of these
D. None of these

607. Most of the photosynthesis on earth is carried by__________?

A. Kelps
B. Gymnosperms
C. Angiosperms
D. Algae

608. Which of the following statement is incorrect about algae______________?

A. Their zygote unlike plants is protected by parental tissue
B. Their classification is based on pigment composition
C. Most of them have different morphological forms in-different stages of their life cycle
D. Almost all of them are aquatic

609. In which of the following pigments major energy reserves and cell wall are like plants?

A. Rhodophyta
B. Chlorophyta
C. Phaeophyta
D. Chrysophyta

610. The word Archaeobacteria (a division of bacteria) derived from Greek means___________?

A. True bacteria
B. False bacteria
C. Recent bacteria
D. Ancient bacteria

611. Who coined the term Animalcules for microorganisms like Bacteria and protozoa______________?

A. Robert Koch
B. Louis Pasteur
C. Alexander Fleming
D. Leeuwenhoek

612. Who discovered the bacteria causing tuberculosis and also developed various techniques of media preparation and maintenance of pure culture_____________?

A. Robert Koch
B. Louis Pasteur
C. Alexander Fleming
D. Leeuwenhoek

613. Which of the following statement is incorrect regarding germ theory of diseases postulated by Robert Koch_____________?

A. A specific organism can always be found in association with a given disease
B. The organism can be isolated and grown in pure culture in the laboratories
C. The pure culture cannot produce the disease when inoculated into susceptible animal however the causative organism isolated from pure culture can do so.
D. It is possible to recover the organism in pure culture from the experimentally infected animals

614. Which of the following structure is not present in all the bacteria_____________?

A. Cell membrane
B. Chromatin bodies
C. Ribosomes
D. Capsule

615. The size of Spirochete is_____________?

A. 0.1 -600 um
B. 100-200 nm
C. 500 um
D. 0.75-1.25 um

616. E. coli and example of entrobacteriace is important for causing diarrheal diseases its size is____________?

A. 0.1-600 um
B. 100-200 nm
C. 1.1-1.5 um (width) 2.0-6.0 um (length)
D. 0.75-1.25 um

617. In bacterial categories the bacteria smaller in number are_______________?

A. Gram-ive bacteria
B. Eubacteria
C. Ancient bacteria
D. Gram +ive bacteria

618. Germ theory of disease has________________postulates?

A. 3
B. 5
C. 4
D. 6

619. Some bacteria ranging occasionally a size of 500 ?m in length are___________________?

A. Escherichia coli
B. Spirochetes
C. Mycoplasma
D. Epulopiscuim

620. Coccobacillus has a shape similar to________________?

A. Diplobacillus
B. Sarcina
C. Egg
D. None of these

621. The first bacterium isolated was_________________?

A. Coccus
B. Bacillus
C. Vibrio
D. Spirochete

622. Which of the following bacteria are thick rigid and spiral______________?

A. Vibrio
B. Spirillum
C. Spirochete
D. Coccus

623. A group of 8 cocci is called______________?

A. Diplococci
B. Octococci
C. Tetrad
D. Sarcina

624. Approximately _____ species of bacteria are known to cause diseases in humans.

A. 100
B. 200
C. 300
D. 400

625. Cyanobacteria reproduce by____________?

A. Binary fission
B. Mitosis
C. Meiosis
D. Conjugation

626. Which of the following help cyanobacteria to locomote?

A. Flagella
B. Gas vesicles
C. Both of these
D. None of these

627. Cyanobacteria have ________ cell wall?

A. Gram +ve.
B. Gram – ve.
C. Acid fast
D. Cellulose rich

628. Who developed the vaccine against anthrax?

A. Louis Pasteur
B. Edward Jennar
C. Leuvenhoek
D. Alexander Fleming

629. Chemical substances used on living tissues that inhibit the growth of micro organism are called___________?

A. Antiseptics
B. Disinfectants
C. Antibiotics
D. Vaccines

630. Rapid growth at exponential ration occurs in which phase of bacterial growth:

A. Lag phase
B. Log phase
C. Stationary phase
D. Death / decline phase

631. Spirochete is an example of___________?

A. Aerobic bacteria
B. Anaerobic bacteria
C. Facultative bacteria
D. Microaerophilic

632. E. coli and example of____________?

A. Aerobic bacteria
B. Anaerobic bacteria
C. Facultative bacteria
D. Microaerophilic

633. Nitrifying bacteria are the examples of___________?

A. Hetrotrophic bacteria
B. Chemosynthetic bacteria
C. Saprophytic bacteria
D. Parasitic bacteria

634. Those bacteria which are fully dependent upon their host for nutrition are called__________?

A. Heterotrophic bacteria
B. Chemosynthetic bacteria
C. Saprophytic bacteria
D. Parasitic bacteria

635. Purple non-sulphur bacteria is an example of___________?

A. Heterotrophic bacteria
B. Chemosynthetic bacteria
C. Photosynthetic bacteria
D. Saprotrophic bacteria

636. Example of bacteria requiring low concentration of oxygen is__________?

A. Campylobactor
B. spirocheta
C. E-coli
D. Pseudomonas

637. The common waste material in bacteria is____________?

A. Glycogen
B. Lactic acid
C. Ammonia
D. Urea

638. Which of the following contains genes for drug and disease resistance in bacteria?

A. Necleotide
B. Plasmid
C. Mesosome
D. Ribosome

639. Which of the following bacteria do not have flagella commonly__________?

A. Cocci
B. Bacilli
C. Streptobacilli
D. Vibrio

640. A bacterium with tuft of flagella at both poles is called_____________?

A. Lophotrichus
B. Monotrichous
C. Peritrichous
D. Amphitrichous

641. Flagella originate from_______________?

A. Cell membrane
B. Cell wall
C. Capsule
D. Basal body

642. Which of the following structure provides greater pathogenicity to the bacteria__________?

A. Capsule
B. Slime
C. Cell Wall
D. Cell membrane

643. 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

644. Cell wall is absent in___________?

A. Cocci
B. Bacilli
C. Mycobacterium
D. Mycoplasma

645. Cell wass of Archaeobacteria does not contain_____________________?

A. Peptidoglycan
B. Proteins
C. Glycoproteins
D. Polysaccharides

646. Gram positive bacteria appear_______________?

A. Purple
B. Red
C. Pink
D. Blue

647. 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

648. All of the following are coelomates except:____________?

A. Deuterosomes
B. Proterosomes
C. Hemichordates
D. Aschelminthes

649. The radial symmetry is found in the animals of___________?

A. Protozoa
B. Porifera
C. Cnidaria
D. All of these

650. Both radial and bilateral symmetry is found in the phylum____________?

A. Protozoa
B. Porifera
C. Echinodermata
D. None of these

651. 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

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

A. Pseudocoelous
B. Schizocoelous
C. Enterocoelous
D. Emphicoelous

653. 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

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

A. Mesenchyme
B. Sclerenchyma
C. Chlorenchyma
D. Mesoderm

655. Aquatic arthropods respire through__________?

A. Spiracles
B. Gills
C. Book lungs
D. Both b and c

656. Circulatory system is open type in all of the following except:___________?

A. Arthropoda
B. Gastropoda
C. Pelecypoda
D. Cephalopoda

657. Shell of egg is leathery in appearance in___________?

A. Amphibians
B. Reptiles
C. Birds
D. Prototherians

658. Aschelminthes is also known as____________?

A. Protozoans
B. Eumatazoa
C. Nematodes
D. Protoctist ancestors

659. The name animal is derived from the word__________?

A. Anima
B. Anemia
C. Aname
D. All of these

660. All the animals of the grade radiata are____________?

A. Diploblastic
B. Triploblastic
C. Both
D. Unicellular

661. 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

662. The system well developed in the acoelomate is___________?

A. Excretory system
B. Nervous system
C. Transport system
D. All of these

663. In acoelomates gut is ________ in origin.

A. Ectodermal
B. Endodermal
C. Mesodermal
D. None of these

664. Venus flower basket is also known as___________?

A. Sycon
B. Euplectella
C. Leucoselenia
D. Spongilla

665. The internal buds are known as__________?

A. Spicules
B. Choanocytes
C. Gemmules
D. None of these

666. The skeleton of the sponges is in the form of variously shaped needle like structures called___________?

A. Stripules
B. Spicules
C. Brails
D. Spines

667. Gut in pseudocoelomates is made from___________?

A. Ectoderm
B. Mesoderm
C. Endoderm
D. All of these

668. Sperms are _________ in origin.

A. Ectodermal
B. Mesodermal
C. Endodermal
D. None of these

669. Inner layers of the sponges are made up of__________?

A. Pinacocytes
B. Choanoderm
C. Choanoytes
D. Pinacoderm

670. Of the following which one is not included in Proterostomes?

A. Arthropods
B. Hemichordates
C. Annelids
D. Molluses

671. Coelom that develops from the archenteron as outpouching is__________?

A. Pseudocoelom
B. Enterocoelom
C. Schizocoelom
D. None of these

672. Of the following which one is not found in series proterostomia?

A. Annelida
B. Arthropoda
C. Mollusea
D. Echinodermata

673. 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

674. 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

675. A sponge of Antarctica which is more than a meter tall is____________?

A. Scolymastra joubini
B. Euplectella
C. Spongilla
D. Leucoselenia

676. The sponges in which sperms develop first are included in the category of__________?

A. Peritandrous
B. Pertandrous
C. Protendrous
D. Protandrous

677. The skeleton of sponges is made up of___________?

A. Calcium
B. Silica
C. Both of these
D. None of these

678. Sperms released in water are carried to the mesenchyme in sponges by__________?

A. Amoeboid cell
B. Stipules
C. Spicules
D. Spines

679. The single main opening of the sponge cavity is____________?

A. Osculum
B. Ostia
C. Spongocoel
D. None of these

680. 80% of the food of sponges consists of__________?

A. Detrital organic particles
B. Zooplankton and small animals
C. Phytoplanktons
D. all of these

681. In sponges fertilization takes place in____________?

A. Ectoderm
B. Mesenchyme
C. Endoderm
D. Uterus

682. Which of the following are motile zooids in cnidarians?

A. Polyps
B. Medusae
C. Both of these
D. None of these

683. Mammals became dominant in__________?

A. Proterozoic era
B. Mesozoic era
C. Paleozoic era
D. Cenozoic era

684. Which of the following fishes contained lungs?

A. Lamprey
B. Perch
C. Plaice
D. Dipnoi

685. Notochord is present throughout life in___________?

A. Urochordates
B. Cephalochordates
C. Chordates
D. Vertebrates

686. Body is eel like in___________?

A. Cyclostomata
B. Chondrichthyes
C. Osteichthyes
D. None of these

687. Body is globular in_________?

A. Cake urchin
B. Sea Urchin
C. Sea cucumber
D. Brittle star

688. Second largest phylum of invertebrates is____________?

A. Porifera
B. Arthropoda
C. Mollusca
D. Chordata

689. 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

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

A. Nematods
B. Annelids
C. Arthropods
D. Molluscs

691. 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.

692. Coelom is lined by__________?

A. Parietal mesoderm
B. Visceral mesoderm
C. Mesoderm
D. Both A & B

693. 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.

694. Enteron in coelenterates acts as___________?

A. Digestive cavity
B. Body cavity
C. Transporting cavity
D. all of these

695. All of the following coelenterates show alternation of generation except:

A. Hydra
B. Obelia
C. Aurelia
D. None of these

696. Excretory system of platyhlminthes consists of___________?

A. Nephridia
B. Flame cells
C. Malpighian tubules
D. Nephrons

697. Pseudocoelem develops from____________?

A. Blastopore
B. Plastoquinone
C. Blastocoel
D. Splitting of mesoderm

698. Exoskeoeton of coelenterates terates is made up to__________?

A. Calcium
B. Silica
C. Chitin
D. Both A & B

699. All of the following are true for Platyhelminthes except____________?

A. Flatwarms
B. Triploblastic
C. Coelomate
D. Bilateral symmetry

700. Nervous system of nematods consists of?

A. Ventral nerve cord
B. Dorsal nerve cord
C. Lateral nerve cord
D. All of these

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