NCERT CLASS 11 | TOPIC : PLANT KINGDOM | ARQB | NEET BIOLOGY ONLINE TEST

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NCERT CLASS 11 | TOPIC : PLANT KINGDOM | ARQB | NEET BIOLOGY ONLINE TEST

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It contains 32 important questions. Choose the most correct answer. Then check your answer. Try again if there are errors. Regards : kalvisolai.net

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1 ➤ 210.

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Assertion: The earliest systems of classification used only superficial morphological characters.

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Reason: Artificial system gave equal weightage to vegetative and sexual characterstics.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

2 ➤ 211.

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Assertion: Cytotaxonomy is based on the cytological information like chromosome number, structure and behaviour.

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Reason: Chemotaxonomy that uses the chemical constituents of the plants.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

3 ➤ 212.

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Assertion: In some species of Chlamydomonas, the fusion of gamete is termed as anisogamous.

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Reason: Because gametes which undergo fusion in these species are of dissimilar in size.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

4 ➤ 213.

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Assertion: Bryophytes are called amphibian of plant kingdom.

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Reason: These plants live in soil but are dependent on water for sexual reproduction.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

5 ➤ 214.

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Assertion: Mosses along with lichens are the first organisms to colonize rocks.

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Reason: They decompose rocks by scereting acid substances.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

6 ➤ 215.

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Assertion: Pteridophytes are used for medicinal purposes and soil binders.

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Reason: They are the first terrestrial plants to possess vascular tissues.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

7 ➤ 216.

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Assertion: Only the red algae is able to flourish at the great depth of sea.

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Reason: Red algae has the pigments r-phycoerythrin and r-phycocyanin.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

8 ➤ 217.

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Assertion: Gymnosperms are heterosporous.

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Reason: They produce haploid microspores and megaspores.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

9 ➤ 218.

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Assertion: PEN is triploid in angiosperm.

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Reason: PEN is formed by fusion of haploid male gamete with the dipoid secondary nucleus.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

10 ➤ 219.

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Assertion: The cells of highly reduced female gametophyte (embryo sac in angiosperm) is haploid.

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Reason: The embryosac is formed by meiosis.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

11 ➤ 220.

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Assertion: In pinus the coralloid roots are associated with nitrogen fixing cynobacteria.

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Reason: In Cycas, mycorrhiza is present.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

12 ➤ 221.

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Assertion: Cyanobacteria included in kingdom Plantae.

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Reason: Cyanobacteria belong to algae.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

13 ➤ 222.

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Assertion: Algae are autotrophic.

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Reason: Algae contain chlorophyll pigments.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

14 ➤ 223.

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Assertion: Half of the total CO2 fixation on earth is carried out by algae.

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Reason: Algae increases the level of dissolved oxygen in their nearby environment.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

15 ➤ 224.

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Assertion: Pyrenoids are storage bodies.

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Reason: Pyrenoids contains starch and proteins.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

16 ➤ 225.

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Assertion: Rhodophytes of shallow water body do not appear reddish.

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Reason: Rhodophytes of shallow water body have lesser synthesis of phycoerythrin.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

17 ➤ 226.

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Assertion: Phaeophyceae are brown algae.

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Reason: Phaeophyceae contain large amount of xanthophyll pigment called fucoxanthin which gives brown colour.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

18 ➤ 227.

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Assertion: Chlorella used as a food supplement by space travellers.

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Reason: Chlorella is unicellular green algae.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

19 ➤ 228.

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Assertion: Sphagnum is used for transhipment of living material like seedlings.

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Reason: Sphagnum has capacity of water retention.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

20 ➤ 229.

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Assertion: Pteridophytes evolutionarily, are first terrestrial vascular plants.

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Reason: Pteridophytes are soil binders

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

21 ➤ 230.

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Assertion: Development of zygote into young embryo takes places within the female gametophytes in Pteridophytes

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Reason: This event is a precursor to seed habit, considered an important step in evolution.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

22 ➤ 231.

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Assertion: Algae are useful to man.

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Reason: At least half of the total CO2 fixation on earth is carried out by algae.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

23 ➤ 232.

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Assertion: Algae increases level of dissolved oxygen in their immediate environment.

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Reason: They show oxygenic photosynthesis

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

24 ➤ 233.

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Assertion: Rhodophyceae commonly known as red algae.

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Reason: Their body predominantly contain red pigment r-prycoerythrin.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

25 ➤ 234.

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Assertion: The spread of living Pteridophytes is restricted to narrow geographical region.

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Reason: They require cool, damp and shady place to grow and require water for fertilization.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

26 ➤ 235.

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Assertion: Sexual reproduction in volvox is oogamous type.

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Reason: Both of fusing gamete of volvox is non flagellated and similar in size.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

27 ➤ 236.

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Assertion: Bryophytes are of great ecology importance.

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Reason: Bryophytes play important role in plant succession on bare rocks.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

28 ➤ 237.

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Assertion: Leaves of gymnosperm can’t withstand extremes of temperature.

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Reason: Leaves of gymnosperm posses’ large surface area with thin cuticle.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

29 ➤ 238.

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Assertion: Volvox show diplontic type of life cycle.

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Reason: They show free living sporophyte.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

30 ➤ 239.

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Assertion: Most algae show haplontic type of life cycle.

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Reason: They show free living sporophyte

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

31 ➤ 240.

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Assertion: Most algae show haplontic type of life cycle.

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Reason: A Fucus alga shows diplontic type of life cycle.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

32 ➤ 241.

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Assertion: Pollination in angiosperm is occurred by means of wind only.

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Reason: Pollen grains in angiosperm are developed from filament.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false

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