CBSE Questions for Class 11 Medical Biology Biological Classification Quiz 5 - MCQExams.com

Which of the following book was written by Theophrastus?
  • 'Enquiry into Plants'
  • 'On the Causes of Plants'
  • 'Historia Plantarum'
  • All of the above
First plant classification was given by
  • Linnaeus
  • John Ray
  • Theophrastus
  • Darwin
The fungi are
  • Autotrophic
  • Holotrophic
  • Chemotrophic
  • Heterotrophic
Streptomyces is included in
  • Fungi
  • Actinomycetes
  • Eubacteriales
  • Virus
Link between prokaryotes and multicellular eukaryotes
  • Cyanobacteria
  • Protista
  • Fungi
  • Plants
Which of the following can utilize light energy for the synthesis of ATP?
  • Slime molds
  • Thermoacidophiles
  • Halophiles
  • All of the above
Which one of the following lichen genera is used as laxative?
  • Usnea
  • Parmelia
  • Cetraria
  • Cladonia
Coenocytic mycelium is found in
  • Rhizopus
  • Mucor
  • Penicillium
  • Both A and B
Thermococcus, Methanococcus and Methanobacterium exemplify
  • Bacteria, whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria.
  • Bacteria, that contain a cytoskeleton and ribosomes.
  • Archaebacteria, that contain protein homologous to eukaryotic core histones.
  • Archaebacteria, that lack any histones resembling those found in eukaryotes, but whose DNA is negatively supercoiled
What is true for Archaebacteria?
  • All are halophiles
  • All are photosynthetic
  • All are fossils
  • Oldest living organisms
Parasexual cycle first discovered by
  • Lederberg and Tatum
  • Pontecorvo and Roper
  • Blaksle
  • Wollman
Lichen show
  • Parasitic relation of fungi on algae
  • Mycorrhizal relationship of algae and fungi
  • Symbiosis of algae and fungi
  • Commensalism
The traditional classification of fungi is based on
  • Reserve food
  • Sexual reproduction
  • Flagella
  • Structure of spores
Which of the following organism created an oxidizing atmosphere on earth?
  • Cyanobacteria
  • Methanogens
  • Ferns
  • Dicots
Practical purpose of taxonomy or classification is to
  • Facilitate the identification of unknown species.
  • Explain the origin of organisms.
  • To know the evolutionary process.
  • Identification of medicinal plants.
Contractile vacuoles in protozoa serve the purpose of 
  • Water circulation
  • Digestion
  • Osmoregulation
  • None of the above
In Fungi, which of the following grow into a organism ?
  • Spores
  • Bacteriophages
  • Eggs
  • Cutting
In Rhizopus, asexual reproduction takes place by
  • Spore
  • Budding
  • Binary fission
  • Vegetative propagation
Foliose lichen is
  • Cladonia
  • Glomus
  • Usnea
  • Parmelia
Which of the following grow into a new fungi plant? 
  • Seeds
  • Spores
  • Pollen
  • None of the above
Which is/are the salient features of kingdom fungi?
  • Cell wall made of chitin
  • Chlorophyll is absent, so they are non photosynthetic
  • They are autotrophic
  • Both A and B
In which of the following groups chlorophyll is not present?
  • Algae
  • Fungi
  • Bryophyta
  • Pteridophyta
Asexual reproduction are 
  • Fission
  • Budding
  • Vegetative propagation
  • All of the above
Fungi is__________________.
  • Heterotrophic
  • Autotrophic
  • Photoautotrophic
  • Chemotropic
Fungi shows ................. mode of nutrition.
  • Saprophytic
  • Autotrophic
  • Parasitic
  • Both A and C
The mode of reproduction connected with the fuzzy, greyish growth on breads is
  • Budding
  • Spore formation
  • Binary fission
  • Vegetative reproduction
Bacteria have a region called nucleoid, in which their genetic material is located. Why then bacteria are classified as prokaryotic cells and not eukaryotic. Choose the correct option among the following:- 


  • Because nucleoid region is surrounded by double membrane.
  • Because nucleoid region is surrounded by single membrane.
  • Because nucleoid region is not surrounded by any membrane.
  • None of the above
Which of the following are represented by P, Q, Rand S in figure given below?
276747.jpg
  • P - Diatom, Q-Chlamydomonas, R-Spirogyra, S - Volvox
  • P - Volvox, Q -Chlamydomonas, R

    - Spirogyra, S - Diatom
  • P - Volvox, Q - Diatom, R -Spirogyra, S -Chlamydomonas
  • P - Spirogyra, Q - Volvox, R -Diatom, S - Chlamydomonas
Which of the following statements regarding viruses is incorrect?
  • They are non-cellular structures.
  • They do not show characteristics of life until they enter a living body.
  • They cannot be crystallized.
  • All of the above.
An organism is described to you as having many nuclei containing cells, each surrounded by a cell wall of chitin and absorbing its food. In which kingdom or domain would you place the organism?
  • Plantae
  • Protista
  • Animalia
  • Fungi
Which of the following groups contains organisms that represent early stages in the evolution of the eukaryotic cell?
  • Archaea
  • Protista
  • Fungi
  • Animalia
Mode of nutrition seen in fungi is________.
  • Saprotrophic
  • Photosynthetic
  • Autotrophic
  • Holozoic
In an ascus of ascomycetes, number and arrangement of ascopores are
  • $$8$$ in linear order
  • $$4$$ in linear order
  • Both A and B
  • $$8,\,or\,4$$, linear order or unordered
An organism that shows sexual reproduction but lacks a proper nucleus in its cells, can obtain nutrition in autotrophic as well as heterotrophic mode and possesses a distinct cell wall is
  • Mycoplasma
  • Blue green algae
  • Bacteria
  • Protozoa
Antibiotic flavicin is produced by
  • Aspergillus fumigatus
  • A. clavatus
  • Streptomyces griseus
  • S. fradiae
Columella is the specialized structure found in the 
  • Ascus of $$Penicillium$$
  • Sporangium of $$Rhizopus$$
  • Pycnida of $$Puccinia$$
  • Mushroom
Fungus used in genetic experiments is
  • Rhizopus
  • Mucor
  • Neurospora
  • Claviceps
The same kind of plants grown on a large scale at a place is called as ......... .
  • Crop
  • Polyculture
  • Forest
  • Grassland
Cheese maturation is connected with
  • Aspergillus oryzae
  • Aspergillius niger
  • Penicillum camemberti
  • Penicillium chyrsogneum
Which of the following is denitrifying bacteria ?
  • Pseudomonas
  • E coli
  • Salmonella
  • None of the above
Mushroom is
  • Saprophyte
  • Facultative parasite
  • Obligate parasite
  • Phagotroph
Dolipore septum occurs in
  • Zygomycetes
  • Basidiomycetes
  • Ascomycetes
  • Alternaria
An edible sac fungus is
  • Lycoperdon
  • Agaricus
  • Morchella
  • Rhizopus
Bakane disease was caused by
  • Fungal toxin
  • Growth hormone released by fungal infection
  • Change in photoperiod
  • Inadequate nutrients
Lichens are well known combination of an alga and a fungus where fungus has
  • A parasitic relationship with the alga
  • A symbiotic relationship with the alga
  • A saprophytic relationship with the alga
  • An epiphytic relationship with the alga
Which of the following environmental conditions are essential for optimum growth of Mucor on a piece of bread.
(a) Temperature about $$25^{\circ}C$$
(b) Temperature about $$5\%$$
(c) Relative humidity of about $$5\%$$
(d) Relative humidity of about $$95\%$$
(e) A shaded place
(f) A brightly illuminated place
Choose the answer from the following options
  • (b), (c) and (e) only
  • (a), (c) and (e) only
  • (a), (d) and (e) only
  • (b), (d) and (e) only
Nucleic acid is absent in ___________.
  • Virus
  • Viroid
  • Prion
  • Mycoplasma
An ovule bent to come at right angles to funicleis
  • Anatropous
  • Orthotropous
  • Campylotropious
  • Hemitropous.
Toxin is secreted during storage condition by
  • Fusarium
  • Colletotrichum
  • Penicillium
  • Aspergillus
Which is not found in mushroom
  • Eukaryotic structure
  • Dikaryotic mycellium
  • Basidiospores
  • Ascospores
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Practice Class 11 Medical Biology Quiz Questions and Answers