Biology MCQs Quiz for Test Preparation

biology mcqs quiz
biology mcqs quiz

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Quiz of MCQs of Biology

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Quiz Biology MCQs

501. Which of the following virus has special affiliations with the tumor production:

A. Hepatitis virus
B. Retrovirus
C. Polio virus
D. Pox virus

502. Which of the following is incorrect for the lysogenic cycle in life cycle of bacteriophage_____________?

A. Phage when gets incorporated with the bacterial chromosome is called prophage
B. The bacterium continues to live and reproduce normally
C. Lysogenic bacteria may get infected by the related phage
D. The cycle may convert into lytic type resulting from environmental exposure

503. 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

504. In lysogenic cycle the process of spearation of phage DNA from the hosts chromosome and initiation of lytic cycle is called______________?

A. Lysis
B. Lysogeny
C. Induction
D. Adsorption

505. Which of the following disease results in Paralysis due to viral attack on C.N.S:

A. Measles
B. Herpes simplex
C. Hepatitis
D. Polio

506. In life cycle of bacteriophage which step occur after attachment of prophage with the receptor site of the bacterial cell wall_____________?

A. Absorption
B. Multiplication
C. Lysogeny
D. Penetration

507. Tobacco mosaic virus is__________?

A. Spherical
B. Rod Shaped
C. Tadpole like
D. Hexagonal

508. In the Lysogenic cycle the DNA of the bacteriophage__________________?

A. Joins the bacterial chromosomes
B. Attaches to the inner surface of the host membrane
C. Is immediately degraded when enters the host
D. Goes directly to host ribosomes for translation

509. Which of the following is an RNA virus:

A. Influenza virus
B. Herpes virus
C. HBV
D. Pox virus

510. Temperate phage may exist as_____________?

A. Prophage
B. Capsid
C. Viron
D. Retrovirus

511. In the lytic cycle of bacteriophage the host DNA is__________?

A. Replicated
B. Turn off by the protein coat.
C. Digested into its nucleotides
D. Turned on by the removal of the protein coat

512. Pepsinogen is produced from__________?

A. Mucous cells
B. Parietal cells
C. Zymogen cells
D. All of these

513. Carbohydrates, fats & proteins are essential for_______________?

A. Metabolic processes of an organism
B. Providing energy
C. Formation of sturctures
D. All of these

514. Dipeptides into amino acids are are converted through_____________?

A. Amino peptidase
B. Erypsin
C. Pepsin
D. Trypsin

516. Magnesium is present in which of the following__________________?

A. Cytochromes
B. ATP
C. Chlorophyll
D. Haemoglobin

517. Deficiency of which of the following causes chlorosis__________________?

A. Nitrogen
B. Magnesium
C. Iron
D. Both A and B

518. Mastication is carried out by__________?

A. Teeth
B. Tongue
C. Smooth muscles
D. All of these

519. Deficiency of K+ causes_____________?

A. Stunted growth & strong chlorosis
B. No electron transport chains
C. Premature death of leaves
D. Stunted growth of roots

520. Masses of dilated tortuous veins in the anorectal mucosa are known as___________?

A. Bulimia
B. Ulcer
C. Adipose tissue
D. Hemorrhoids

521. Puccinia is a parasitic___________?

A. Plant
B. Fungus
C. Animal
D. Algae

522. 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

523. Autotrophic organisms can exist in an exclusively ________________ environment?

A. Organic
B. Inorganic
C. Wet
D. Terrestrial

524. Loss of appetite due to the fear of becoming obese is____________?

A. Anorexia nervosa
B. Bulimia nervosa
C. Piles
D. Dyspepsia

525. Strong chlorosis is due to the deficiency of _____________ in plants?

A. Magnesium
B. Nitrogen
C. Potassium
D. Phosphorus

526. Stunted growth of roots is due to the deficiency of____________in plants?

A. Potassium
B. Magnesium
C. Phosphorus
D. Iron.

527. The liquid that escapes during defrosting frozen meat contains _____ bacteria?

A. Campylobacter
B. Nitrobacter
C. Azobacter
D. Salmonella

528. One of the commonest cause of food poisoning are the toxins produced by__________?

A. Azobacter
B. Nitrosomonas
C. Campylobacter
D. Nitrobacter

529. Puccinia commonly destroys______________?

A. Corn
B. Tomato
C. Dodder
D. Wheat

530. Nodules on roots of leguminous plants have __________ bacteria?

A. Anaerobic
B. Nitrogen fixing
C. Nitrifying
D. Ammonifying

531. Earthworm is an example of ______________feeder?

A. Detritus
B. Fluid
C. Macrophageus
D. Filter

532. All of the insectivorous plants are true________________?

A. Heterotrophs
B. Autotrophes
C. Carnivores
D. Saprotrophs

533. Of the following, which one has more variety of nutrition________________?

A. Animals
B. Bacteria
C. Plants
D. Fungi

534. Incomplete or imperfect digestion is known as________?

A. Obesity
B. Dyspepsia
C. Anorexia nervous
D. Bulimia nervosa

535. The leaf is bilobed with midrib between them. The plant is____________?

A. Saraccnia
B. Dionaea
C. Pitcher plant
D. None of these

536. Anus is surrounded by _____ types of muscles?

A. 2
B. 3
C. 1
D. 4

537. Of the following, which one is missing in herbivores_______________?

A. Premolars
B. Canines
C. Incisors
D. Molars.

538. Certain types of whales are also __________ feeder?

A. Fluid
B. Macrophagous
C. Filter
D. None of these

539. ____________is about 2.4 meter in length and comprising about two fifth of the small intestine?

A. Duodenum
B. Jejunum
C. Ileum
D. Caecum

540. Hydra is an example of ______________ feeder?

A. Fluid
B. Macrophagous
C. Fluid
D. All of these

541. Hepatic and Pancreatic secretions are also stimulated by a hormone produced by the intestinal mucosa. The hormone is___________?

A. Creatin
B. Gastrin
C. Secretin
D. Pepsin

542. Parasites capable of living independently of its host at times is called as ___________ parasite?

A. Obligate
B. Strict
C. Facultative
D. Endoparasite

543. 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

544. In planaria, numerous small branches which end blindly are called as__________?

A. Digestive tract
B. Intestinal caeca
C. Hepatic caeca
D. Both B & C

545. Midgut in cockroach is a short narrow tube called____________?

A. Hepatic caeca
B. Gizzard
C. Stomach
D. Rectum

546. Hunger contractions are _____ contractions?

A. Antiperistalsis
B. Peristalsis
C. Voluntary
D. None of these

547. The partly digested food is stored in________in cockroach?

A. Gizzard
B. Crop
C. Hepatic caeca
D. Rectum

548. How many species of fungi are known till now?

A. 10000
B. 100000
C. 10000000
D. 1000

549. Which of the following group represent pathological fungi______________?

A. Mushrooms morels and truffles
B. Rusts smuts and molds
C. Penicillium
D. All of these

550. Death cap/death angel (Amanita) and Jack O Latern mushroom are examples of__________?

A. Edible mushrooms
B. Poisonous mushrooms
C. Both of these
D. None of these

551. Which one of the following is different from all the rest regarding the number of cells inits body_______________?

A. Rusts
B. Mushrooms
C. Molds
D. Yeasts

552. Fungi which get their food directly from dead organic matter are called______________?

A. Parasitic fungi
B. Predators
C. Mutualists
D. Decomposers

553. How many species of mushrooms are edible?

A. 100
B. 200
C. 3000
D. 4000

554. Root like structure in saprotrophic fungi are called_______________?

A. Rhizodis
B. Haustoria
C. Hyphae
D. Constricting rings

555. Penicillium reproduce via___________?

A. Spores
B. Conidia
C. Budding
D. Fragmentation

556. Those fungi which can grow only on their living host and cannot be grown on available defined growth culture medium e.g. various mildews and most rust species are called_____________?

A. Parasitic fungi
B. Obligate parasitic fungi
C. Facultative parasitic fungi
D. All of these

557. Mode of nutrition in penecillium is____________?

A. Saprotrophs
B. Parasitic
C. Predators
D. Mutualistics

558. Oyster mushroom is an example of predator fungi which attack on______________?

A. Pin warms
B. Tape worms
C. Round worms
D. Platehelminthes

559. Lichen is a symbiotic mutualistic association of fungi with______________?

A. Autotrophs
B. Roots of vascular plants
C. Green algae and cyanobacterium
D. Leguminous plants

560. Foliose lichen are_____________?

A. Stem like
B. Branching
C. Leaf like
D. Crust like

561. How many species of ascomycota occur in lichen symbiotic association?

A. 30%
B. 40%
C. 50%
D. 60%

562. 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

563. Which one of the following is the largest group of fungi?

A. Zygomycota
B. Ascomycota
C. Basidiomycota
D. Deuteromycota

564. The Kingdom of recyclers is known as kingdom_____________?

A. Algae
B. Bacteria
C. Fungi
D. Embryophata

565. According to two kingdom classification fungi were placed in kingdom___________?

A. Plantae
B. Animalia
C. Protista
D. Fungi

566. 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.

567. Ecological role of fungi as decomposers is only paralleled by_____________?

A. Cyanobacteria
B. Blue green algae
C. Bacteria
D. Virus

568. Which of the following is called black bread mold?

A. Pilobolus
B. Penicillium
C. Neurospora
D. Rhizopus

569. Coenocytic hyphae are also known as______________?

A. Septate
B. Perforated hyphae
C. Aseptate
D. Uninucleate hyphae

570. In which of the following example of fungi dikaryotic hyphae exist for long period?

A. Deuteromycota
B. Basidiomycota
C. Zygomycota
D. All of these

571. Unicellular fungi which is non-hyphal is___________?

A. Mushroom
B. Yeast
C. Penicillium
D. Mold

572. Parasitic fungi absorb nutrients directly from the living host cytoplasm with the help of special hyphal tips called___________?

A. Mildew
B. Constricting ring
C. Haustoria
D. All of these

573. By which of the following mechanism unicellular yeast reproduce?

A. Sporing
B. Conidiation
C. Budding
D. Fragmentation

574. Constricting ring around nematode is formed by_____________?

A. Arthrobotrys
B. Pleurotus ostreatus
C. Mildews
D. All of these

575. Simple breaking of mycelium resulting in formation of a new mycelium from each broken segments is called__________?

A. Sporing
B. Conidiation
C. Budding
D. Fragmentation

576. Type of lichen which tightly attaches to rocks is_____________?

A. Parmelia
B. Fruticose
C. Foliose
D. Crustose

577. Mycorrhizae are found in about__________vascular plants?

A. 90%
B. 95%
C. 98%
D. 96%

578. Spores in sporangia are produced by process?

A. Sexual
B. Asexual
C. Both of these
D. None of these

579. Fungi can tolerate pH from____________?

A. 3-7
B. 2-6
C. 2-9
D. 3-6

580. Which of the following is responsible for Irish potato famine?

A. Dinoflagellates
B. Kleps
C. Physarum polycephalum
D. Phytophthora infestans

581. Which of the following statement about Kingdom Protista is incorrect_______________?

A. Their members have characteristics which separate them from other kingdoms
B. They only include unicellular aquatic eukaryotic organisms
C. They do not develop from Blastula or embryo
D. They contain ancestors for fungi plants & animals

582. Spores produced by slime molds are__________?

A. Haploid
B. Diploid
C. Triploid
D. None of these

583. Who first separated bacteria from other protists as a group_____________?

A. John Hogg
B. Ernst Haeckel
C. Margulis and Schwartz
D. Herbert Copeland

584. In slime molds spores develop into__________?

A. Swarm cells
B. Biflagellated cells
C. Amoeboid reproductive cells
D. All of these

585. Which of the protozoa has a striking resemblance to collar cells in sponges_____________?

A. Zooflagellates
B. Choanflagellates
C. Trypanosomoa
D. Trichonymphas

586. Of the following which one is not the characteristic of green algae?

A. Some green algae possess cell wall with cellulose
B. They are generally accepted as the ancestors of green plants
C. Chlorella is unicellular non-motile green algae
D. None of these

587. Radiolarians belong to which of the following protozoal group____________?

A. Zooflagellates
B. Actinopods
C. Foraminifera
D. Apicomplexans

588. In chlorophytes the main energy stores are__________?

A. Cellulose
B. Starch
C. Glycogen
D. All of these

589. Which of the following statement about eiliates in incorrect_____________?

A. Contain mainly unicellular organisms.
B. Their contractile vacoule is respobsible for water regulation.
C. They are even capable of sexual reproduction.
D. Diploid nucleus being smaller is responsible for cells metabolism and growth while polyploidy nucleus functions in sexual process.

590. Examples of Rhodophytes are___________?

A. Chondrus
B. Polysiphonia
C. Both of these
D. Pinnularia

591. Of the following which one is not the characteristic of dinoflagellates?

A. Most of them are unicellular
B. They have blooms
C. Their cells are often covered with shells of interlocking cellulose plates impregnated with calcium
D. None of these

592. Lime stone deposits are formed from__________?

A. Zooflagellates
B. Foraminferans
C. Aetinopods
D. Apicomplexans

593. The most important group of producers in marine ecosystem is of__________?

A. Diatoms
B. Euglenoids
C. Dinoflagellates
D. Brown algae

594. Plasmodium belongs to__________?

A. Ciliates
B. Apicomplexans
C. Actinopods
D. Foraminferans

595. Most dinoflagellates are___________?

A. Unicellular
B. Multicellular
C. Both of these
D. Zooflagellates

596. Kingdom protista includes_____________phyla?

A. 27
B. 28
C. 26
D. 29

597. 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

598. Stentor is a/an____________?

A. Ciliate
B. Foraniniferan
C. Actinopods
D. Apicomplexan

599. Based on molecular data euglenoids are thought to be closely related to___________?

A. Dinoflagellates
B. Zooflagellates
C. Protozoans
D. Algae

600. Complex specialized flagellates living symbiotically in the gut of termites are___________?A. Trichonymphas
B. Trypanosoma
C. Euglena
D. Radiolarians

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