Entry Test Biology Past Papers STEP Chapter Wise yearly

MDCAT Bioloy Entry Test Multiple Choice Questions

MDCAT Biology MCQs collected from past papers of STEP Self-Assessment  Session 2020.Step by PGC self assessment entry test for the students of Pre-Medical.

Entry Test PGC MCQs Test No.9

26.       True pili are only present on

            a          Gram positive baclene

            b          Gram negative bacleria

            c          Bacilli d          The spiral

27.       Which one of followings determine the shape of bacterium

            a          Slime               b Cell wall

            c          Capsule           d  Plane of division

28.       Cell wall is only absent in

            a          Mycoplasmas  b Escherichia coli

            c          Spirochetes     d  Pseudomonas

29.       Overall thickness of gram positive cell wall

            a          2-8nm              b  20-80nm

            c          8-11nm            d   81-110nm

30.       The cytoplasm of prokaryotic cell lacks

            a          Discrete chromosome

            b          Discrete chromosome & nuclear membrane

            c          Membrane bound organelles

            d          Membrane bound organelles & microtubules

31.       Which one of following is incorrect about plasmid

            a          Vector in genetic engineering technique

            b          Circular double standard DNA molecule

            c          Essential for growth & metabolism

            d          Self replicating

32.       Bacterial’s spores help in

            a          Reproduction

            b          Storage of nutrients

            c          Differentiation of vegetative cells

            d          Survival under adverse condition

33.       The cell walls of most bacteria have a unique macromolecule called

            a          Murein                        b Peptidoglycan

            c          Lipopolysaccharide    d Lipoproteins

34.       Most bacteria are

            a          Autotrophic      b   Heterotrophic

            c          Photosynthetic d    Chemosynthetic

35.       Which one of following are fully dependent on their host for nutrition

            a          Parasitic           b Saprophytic

            c          Photosynthetic d  Chemosynthetic

36.       Bacterial chlorophyll is present in the

            a          Chloroplast     b Mesosome

            c          Cytoplasm       d Cell membrane

37.       During photosynthesis, bacteria liberate

            a          Oxygen           b  Sulphur

            c          Nitrogen          d  Carbon dioxide

38.       Nitrifying bacteria are

            a          Parasitic          b  Sporophytic

            c          Photosynthetic d  Chemosynthetic

39.       The products of bacterial photosynthesis are

            a          Co2 + H2O + 2S

            b          2H2S + H2O + 2S

            c          (CH2O)n + 2H2S + Co2

            d          (CH2O)n + H2O + 2S

40.       Antibiotics are used in treatment of

            a          Parasitic disease

            b          Social diseases

            c          Congenital diseases

            d          Infections diseases

41.       Mycorrhizal fungi

            a          Are recycler

            b          Improve growth of plants

            c          Help in ecological succession

            d          Are bioindicator of pollution

42.       A common morel

            a          Tuber species             b.Agaricus Sp

            c          Morchella esenlenta   d.Amanita

43.       Citric acid is obtained from

            a          Yeast                        b Penicillium

            c          Yeast & penicillium d Aspergillus

44.       Which one of followings is mismatched

            a          Griseofulvin – inhibit fungal growth

            b          Lovastatin – organ transplantation

            c          Ergotine – relieve migraine

            d          Lichens – natural dyes

45.       The first eukaryotes to be used by genetic engineer

            a          Yeasts             b  Lichens

            c          Penicillium     d  Aspergillus

46.       Neurospora is commonly known as

            a          Black bread mold

            b          Pink bread mold

            c          Blue bread mold

            d          Yellow bread mold

47.       Ustilago maydis causes

            a          Corn smut             b Corn rust

            c          Powdery mildew   d  Ergot of rye

48.       Athlete’s foot is caused by

            a          Sac-fungi    b Conjugating fungi

            c          Club fingi    d Imperfect fungi

49.       Rhodotorula is

            a          Bracket / shell fungi

            b          Wood rotling fungi

            c          Black yeast

            d          Pink yeast

50.       The zygomycetes

            a          Produce motile gametes

            b          Have hyphae without repta

            c          Are haploid throughout their life

            d          b, c are both correct

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