CBSE Questions for Class 11 Medical Biology Plant Kingdom Quiz 3 - MCQExams.com

Ptyxis in Cycas is
  • Simple
  • Circular
  • Circinate
  • None of the above
Algal zone is characteristic of
  • Normal root of Cycas
  • Root of Pinus
  • Coralloid roots of Cycas
  • Stem of Cycas
Early embryogeny in Cycas is characterized by
  • Absence of suspensor cell
  • Presence of expanded free nuclear division
  • Reduced free nuclear division
  • Many cotyledons
Of the following group which secrete and deposit calcium
carbonate and appear like corals

  • Red algae
  • Brown algae
  • Blue green algae
  • All of these
Cycas and Adiantum resemble each other in having
  • Seeds
  • Motile sperms
  • Cambium
  • Vessels
Negatively geotrophic roots are found in
  • Colocasia
  • Cycas
  • Cactus
  • Coleus
Cycas is living fossil, as it has
  • Ciliated sperms
  • Structure like that of tree fern
  • Restricted occurrence in certain areas
  • Been found in fossil state also
The secondary growth in stem of Cycas is brought about by
  • Persistent cambium
  • Short lived cambium
  • Number of cambia produced in succession
  • Isolated strips of cambium
Cycas has two cotyledons but it is not included under angiosperms, because it has
  • Circinate ptyxis
  • Compound leaves
  • Monocot like stem
  • Naked seeds
Secondary wood of Cycas is devoid of
  • Tracheids
  • Vessels
  • Protoxylem
  • Metaxylem
Polyembryony seen in Cycas is
  • Potential true polyembryony
  • Potential true polyembryony and cleavage polyembryony
  • Adventive polyembryony
  • All of the above
Cycas belong to gymnosperm due to
  • Naked seed without fruit
  • Living fossils
  • Vessel present in xylem
  • Habitat
Match the columns
Column-I                                            Column-II
A  Hornwort                             1        Lycopodium
B  Liverwort                             2        Ricciocarpus
C Stonewort                            3        Anthoceros
D Club moss                           4        Chara







  • A B C D

    2 3 4 1
  • 2 3 1 4
  • 3 2 1 4
  • 3 2 4 1
A protective cap or hook like covering on the developing  capsule in a moss is known as _________.
  • Spine
  • Calyptra
  • Lodicule
  • Calyptrogen
The gametophytic generation in pteridophytes is commonly called ___________.
  • Thallus
  • Plant body
  • Prothallus
  • Protonema
Top-shaped multiciliate male gametes, and the mature seed which bears only one embryo with two cotyledons, are characteristic features of -
  • Gamopetalous angiosperms
  • Conifers
  • Polypetalous angiosperms
  • Cycads
Vessels are found in : -
  • All angiosperms and some gymnosperm
  • Most of the angiosperm and few gymnosperms
  • All angiosperms, all gymnosperms and some pteridophyta
  • All pteridophyta
Laminaria (kelp) and Fucus (rock weed) are the examples of 
  • Green algae
  • Brown algae (Phaeophyceae )
  • Red algae (Rhodophyceae )
  • Golden brown algae
Among the plants listed, point out which one does not fit into ecological group represented by other plants 
  • Acacia
  • Rhizophora / Vallisneria
  • Euphorbia
  • Aloe
Pteridophyta do not have
  • Roots
  • Stem
  • Flowers
  • Leaves
The model organism that has largely been responsible for making rapid advances in research on photosynthesis is 
  • Chlamydomonas
  • Spinach leaf
  • Chlorella
  • Hydrilla
Which one is partially submerged and fixed in mud
  • Marsilea
  • Cyperus
  • Eichhornia
  • Typha
Which one of the following is a fat-soluble vitamin and its related deficiency disease ?
  • Calciferol Pellagra
  • Ascorbic acid Scurvy
  • Retinol Xerophthalmia
  • Cobalamine Beri-beri
Meiosis (reduction division) in pteridophytes takes place at the time of _________________.
  • Spore formation
  • Sexual organ formation
  • Germination of spores
  • Gamete formation
Warburg studied his effect on 
  • Chlamydomonas
  • Chlorella
  • Volvox
  • All of the above
The most advanced forms of algae are
  • Brown algae of phaeophyceae
  • Red algae of rhodophyceae
  • Yellow algae of xanthophyceae
  • Green algae of chlorophyceae
SrCharactersPlant group IPlant group IIPlant group IIIPlant group IV
 1.AutotrophicYesYesYesYes
2.TerrestrialNoYesYesYes
 3.Presence of vascular tissueNoYesYesNo
 4.Flower producedNoNoYesNo
Shirin had been on a holiday to Ooty. In her school, she has studied the interesting world of plants. On the day of her return, she collected four groups of plants I, II, III, and IV. She carefully noted some of their details and arranged the information in the form of a table as given below. She asked her teacher how to identify which group is of pteridophytes. Take a look at the data and suggest which of the groups could be of Pteridophytes and why?
  • Plant group I
  • Plant group II
  • Plant group III
  • Plant group IV
Which of the following is an incorrect match for chlorophyll type?
  • Chlorophyll a- Green algae
  • Chlorophyll d- Diatoms
  • Chlorophyll c- Diatoms and brown algae
  • Chlorophyll d- Red algae
The algae which are called as 'gulfweed' are
  • Chlamydomonas
  • Volvox
  • Chara
  • Sargassum
Algae differ from Riccia and Marchantia in having
  • Multicellular body
  • Pyrenoids in the cells
  • Multicellular sex organs
  • Thalloid body
Carpogonium is ......... gametangium of .................
  • Female; red algae
  • Male; red algae
  • Female; green algae
  • Male; green algae
Deposits of fossil diatoms are called as 
  • Peat
  • Humus
  • Resin
  • Kieselguhr
Agarophyte is
  • Gracilaria
  • Gelidium
  • Fucus
  • Both A and B
The algal plant body, considered to be advanced over the unicellular condition, is
  • Motile colony of Volvox
  • Non-motile colony, mixed with the motile colony
  • Filamentous body of Ulothrix
  • Branched filamentous habit
Trumpet hyphae in certain brown algae resemble
  • Trachea
  • Sieve tubes
  • Sclerenchymatous fibres
  • Tracheids
Riboflavin is abundant in
  • Porphyra
  • Laminaria
  • Ulva
  • All of the above
Algae have great economic importance to man because
  • They can be grown in tanks.
  • They help to restore the fertility of the soil.
  • Of their high protein content, some algae may be used as future food.
  • Both B and C.
Algae used for the manufacture of iodine is
  • Nostoc
  • Laminaria
  • Polysiphonia
  • Diatoms
Sea lettuce alga is
  • Ulva
  • Chlorella
  • Batrachospermum
  • Laminaria
The alga which is used as a condiment and in the making of soup is
  • Porphyra
  • Spirogyra
  • Ulothrix
  • Volvox
Among the following which is obtained from algae?
  • Silica
  • Alginates
  • Agar-agar
  • All of the above
Palcato (drug) is used to cure goitre, which is extracted from
  • Porphyra
  • Sargassum
  • Alsidium
  • Chlorella
Which of the following is a parasitic green algae?
  • Sargassum
  • Nostoc
  • Cephaleuros
  • Chorella
Of the following groups, which secrete and deposit calcium carbonate and appear like corals?
  • Red algae
  • Brown algae
  • Blue green algae
  • All of the above
  • None of the above
Which of the following is a flagellated algae?
  • Chlamydomonas
  • Ulothrix
  • Saccharomyces
  • Agaricus
Which one is the largest unicellular organism?
  • Planaria
  • Volvox
  • Blue green algae
  • Yeast
  • Acetabularia
Algae which form motile colony is
  • Volvox
  • Nostoc
  • Spirogyra
  • Chlamydomonas
Dinoflagellates are
  • Prokaryotes
  • Planktons
  • Mesokaryotes
  • None of the above
Agar is obtained from
  • Red algae
  • Brown algae
  • Blue green algae
  • Green algae
Primary function of heterocyst in Nostoc is
  • Food storage
  • Nitrogen fixation
  • Reproduction
  • Protection
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