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1Choose the correct statement regarding Gymnosperm1 questions
Q.10Choose the correct statement regarding the common characters of Gymnosperm and Angiosperm only
a. Pollen tube help in the transfer of male nucleus & fertilization is Siphonogamous
b. Heterospory is of common occurrence
c. Vessels are the chief water-conducting elements
d. Pollination is by Anemophilous method onlyv
Answer:a. Pollen tubes help in the transfer of the male nucleus & fertilization is Siphonogamous.
2Choose the correct statement regarding the common characters of Gymnosperm and Angiosperm only5 questions
Q.1Which one of the following is a wrong pair?
a. National wood fossil park – Thuruvakkarai
b. Shiwalik fossil park – Arunachala Pradesh
c. Mandal fossil park – Madhya Pradesh
d. Raj mahal hill – Jharkhandv
Answer:b. Shiwalik fossil park – Arunachala Pradesh
Q.2Which one of the following is a wrong pair?
a. Halophytic Algae – Dunaliella salina
b. Epiphytic Algae – Rhodymenia
c. Endophytic algae – Cladophora crisp ala
d. Endozoic Algae – Chlorellav
Answer:c. Endophytic Algae – Cladophora crisp ala
Q.3Which one of the following is a wrong pair?
a. Father of Indian Bryology- Prof. Shiv. Ram Kashyap
b. Father of Indian Phycology – F.E. Fritsch
c. The classification of gymnosperm – Sporn
d. The father of Indian Paleobotany – Prof. Birbal Sahniv
Answer:b.Father of Indian Phycology F.E.Fritsch
VI. Read the following assertion & reason. Find the correct answer.
Q.11Look at the picture and find out the correct answer.
a. Gemmae of Marchantia
b. Thallus of Riccia
c. The gametophyte of Anthoceos
d. The tubers of Anthoceosv
Answer:d.The tubers of Anthoceos
Q.12Look at the picture and find out the correct answer
a. The Asexual reproduction in Ultrix by the formation of zoospores
b. Akinetes formation in Pithophora
c. Scalariform conjugation in Zygnema
d. Zygospore formation in spirogyrav
Answer:c. Scalariform conjugation in zygoma.
V.
3Choose the Right Answer:10 questions
Q.1Which of the plant group has gametophyte as a dominant phase ?
a. Pteridophytes
b. Bryophytes
c. Gymnosperm
d. Angiospermv
Q.2Which of the following represent gametophytic generation in Pteridophytes?
a. Prothallus
b. Thallus
c. Cone
d. Rhizophorev
Q.3The haploid number of chromosome for an Angiosperm is 14, the number of chromosome in its endosperm would be
a. 7
b. 14
c. 42
d. 28v
Q.4Endosperm is gymnosperm is formed
a. At the time of fertilization
b. Before fertilization
c. After fertilization
d. Along with the development of embryov
Answer:b. Before fertilization
Q.5Differentiate Haplontic and Diplontic life cycle.v
Answer:Haplontic life cycle
Diplontic life cycle.
Gametophyte phase Sporophytic phase
Dominant photosynthetic independent Recessive represented by the zygote.Zygote undergoes meiosis to restore haploidy e.g. Volvox.Spirogyra
Recessive represented by single to few celled stage Zygote develop in to dominant sporophyte e.g.Fucus, Gymnosperm, Angiosperm.
Q.6What is plectostele – Give example.v
Answer:Plectostele: Xylem plates alternates with phloem plates. Example: Lycopodium clavatum.
Q.7What do we infer from the term Pucnoxylic?v
Answer:- Secondary growth is also traced in gymnosperms, E.g. Cycas and Pinus.
- The wood may be compact with narrow medullary ray this condition known as Pycnoxlic seen in Pinus.
- It is opposite to Manoxylic condition which is seen in Cycas.
Q.8Mention two characters shared by Gymnosperms and Angiosperms.v
Answer:Gymnosperms
Angiosperms
1
Seed bearing plants
Seed bearing plants
2
Plant body is a sporophyte and it is dominant phase.
Plant body is a sporophyte and it is also the dominant phase
3
Stem show secondary growth.
Stem show secondary growth only in dicots not in monocots.
4
Alternation of generation is present.
Alternation of generation is present.
Q.9Do you think shape of chloroplast is unique for algae. Justify your answer.v
Answer:Variation among the shape of the chloroplast is found in members of algae. It is Cup-shaped (chlamydomonas). Discoid ((Chara), Girdle shaped (Ulothrix), reticulate (Oedogonium), spiral (Spirogyra), stellate (Zygnema) and plate like (Mougeoutia).
Q.10Do you agree with the statement that Bryophytes need water for fertilization? Justify your answer.v
Answer:Being amphibians of plant kingdom they are simplest land inhabiting cryptogams and restricted to moist shady habitats. They need water for the male gametes to reach Archegonia to effect fertilization. So water is needed for completing their fertilization and their life cycle.
Part – II
11th Bio Botany Guide Plant Kingdom Additional Important Questions and Answers
I. Choose the correct option.
4Choose the right statement regarding leaves of Pteridiumsp.2 questions
Q.8Which one of the following is a correct statement regarding Bryophyta
a. Mostly terrestrial plants so water is not essential for reproduction
b. The gametophyte is dominant but the sporophyte is independent
c. They have well-developed xylem and phloem tissues
d. They are the simplest land inhabiting cryptogams lacking vascular tissues.v
Answer:d.They are the simplest land inhabiting cryptogams lacking vascular tissues
Q.9Choose the correct statement regarding Gymnosperm
a. The spores are generally homosporous
b. The leaves are dimorphic, foliage and scale leaves are present
c. The stem is aerial erect and unbranched in conifers
d. Xylem mostly consists of only vessels.v
Answer:b. The leaves are dimorphic, foliage and scale leaves are present.
5I. Choose the correct option.20 questions
Q.1Gametophytic phase is …………….v
- (a) triploid
- (b) tetraploid
- (c) haploid
- (d) diploid
Q.2The numbers of known species of Angiosperms in the world is
a. 268600
b. 286600
c. 224400
d. 274832v
Q.3Which algae leads an endozoic life in Hydra?v
- (a) Chlorella
- (b) Gracilaria
- (c) Ulothrix
- (d) Chlamydomonas
Q.4The protein bodies found in chromatophores & assist in the synthesis and storage of starch is
a. Leucoplasts
b. Floridean starch
c. Pyrenoids
d. Mannitolv
Q.5Postelia palmaeformis is commonly known as
a. Sea kelp
b. Sea shell
c. Sea palm
d. Sea worthv
Q.6In Chara, thallus is encrusted with …………….v
- (a) calcium carbonate
- (b) hydrogen sulphate
- (c) silica
- (d) ammonium carbonate
Answer:(a) calcium carbonate
Q.7Gemmae formation is not traced in which three of the given four options
a. Marchanlia
b. Riella
c. Ricciocarpus
d. Anthoceros
(i) ab & c
(ii) be & d
(iii) ab & d
(iv) ac & dv
Q.8Find out the aquatic bryophytes of the following.
a. Riella
b. Ricciocarpus
c. Riccia
d. Bryopteris
(i) a&c
(ii) b&c
(iii) c&d
(iv) a&bv
Q.9…………… are thin-walled non – motile spores.v
- (a) Zoospores
- (b) Akinetes
- (c) Aplanospores
- (d) Genunae
Q.10which one of the following is a terrestrial chiorophycea
a. Chara
b. Zygnema
c. Trentipohlia
d. Ulvav
Q.11Thick walled spores meant for perrennation are known as
a. Aplanospores
b. Akinetes
c. Endospores
d. Zoosporesv
Q.12The photosynthetic part of the Phaeophyceae thallus Is called asv
- (a) holdfast
- (b) stipes
- (c) lamina
- (d) fronds
Q.13The female sex organ of red algae is known as
a. Archegonium
b. Spermatogonium
c. Carpogonium
d. Oogoniumv
Q.14Endosperm is triploid and haploid in
a. Pteridophyta & Gymnosperm
b. Angiosperm & Gymnosperm
c. Gymnosperm & monocot
d. Gymnosperm & dicotv
Answer:b. Angiosperm & Gymnosperm
Q.15Gelidium belongs to …………… members.v
- (a) Rhodophyccae
- (b) Phaeophyceae
- (c) Cyanophyccae
- (d) Dinophyceae
Q.16……………….. is known as leather leaf fern
a. Marsilea
b. Azolla
c. Selaginella
d. Rumohra adiantiformisv
Answer:d. Rumohra adiantiformis
Q.17Stele includes
a. Xylem, phloem & cambium
b. Xylem, phloem & medulla
c. Xylem, phloem & pericycle
d. Xylem, phloem, pericycle & medullav
Answer:d. Xylem, phloem, pericycle & medulla
Q.18Marchantia vegetatively propagates by …………….v
- (a) tubers
- (b) gemmae
- (c) buds
- (d) brood bodies
Q.19The organ in bryophytes that help to attach the thallus to the substratum is
a. Hold fast
b. Rhizoids
c. Rhizopore
d.Rootsv
Q.20Coralloid roots of cycas have a symbiotic association with …………….v
- (a) Blue-green algae
- (b) Mycorrhiza
- (c) Euglena
- (d) Rhizobium
Answer:(a) Blue-green algae
II. Match the following & find the correct answer.
6II. Match the following & find the correct answer.5 questions
Q.1(i) Spores look similar to parental cell – Zoospore (A)
(ii) Thick walled aplanospores – Autospore (B)
(iii) Thin walled non-motile spores – Hypnospore (C)
(iv) Thin walled motile spores – Aplanospore (D)v
Q.2(i) Helianthusannum – Amphiboloicstele (A)
(ii) Lycopodium serratum – Eustele(B)
(iii) Zeamays – Actinostele (C)
(iv) Adiantumpedatum – Atactostele (D)v
Q.3(i) Fossil bryophyte – Lepidodendron, Williamson
(ii) Fossil Algae – Calamites Baragwanthia
(iii) Fossil pteridophyte – Naiadita, Hepaticites
(iv) Fossil Gymnosperm – Palaeoporella,Dimorphosiphonv
Q.4(i) Abies balsamea – Drug for cancer treatment (A)
(ii)Taxus brevifolia – Wood for making door, boat & railway sleepers (B)
(iii) Cedrus deodara – Treatment for asthama & bronchitis(C)
(iv) Ephedra gerardiana – Slide mounting medium(D)v
Q.5Find the chromosome number of the following by choosing the correct option.
(i) Embryo ofblyophyta
(ii) Embryo ofAngiosperm
(iii) Endosperm ofAngiosperm
(iv) Sporophyte ofpteridophytav
Answer:(a) (I) n (II) 2n (III) 3n (IV) 2n
III. Choose the wrong statement.
7III. Choose the wrong statement.7 questions
Q.1The following statement is not applicable to which one of the following options
The sporophyte is dominant, photosynthetic, and independent. The gametophytic phase is represented by a single to few celled gametophyte
a. Fucus
b. Mango
c. Pinus
d. Marchantiav
Q.2One of the following is not a Marine Algae.
a. Gracilaria
b. Sargassum
c. Oedogonium
d. Cladophorav
Q.3Which one of the following is not a Vascular cryptogam
a. Lycopodium
b. Anthoceros
c. Equisetum
d. Selaginellav
Q.4Which one among the given four doesn’t belong to Chlorophyceae
a. Chiorella
b. Volvox
c. Chara
d. Sargassumv
Q.5Pollination is not entomophilous in
a. Hibiscus
b. Mangifera
c. Chrysanthemum
d. Cycasv
Q.6The following one is not a monoecious plant
a. Pinus
b. Cycas
c. Alnus
d. Ginkgov
Q.7Which one of the following is not the correct statement regarding Algae?
a. The study of Algae is known as Phycology
b. A wide range of thallus organization is found in Algae
c. Algae are eukaryotic except Blue Green Algae
d. They are the simplest plant group with root stem and leavesv
Answer:d. They are the simplest plant group with root stem and leaves
IV. Find out the true or false statements from the following and on that basis find the correct answer.
8IV. Find out the true or false statements from the following and on that basis find the correct answer.7 questions
Q.1(i) Chara thallus is encrusted with calcium carbonate
(ii) Siliceous wall occurs in the cell wall of Diatom
(iii) Soil inhabiting algae – Fritshchiella
(iv) Cladophora crispate is growing nowv
Answer:c. (I) True (II) True (III) False (IV) True
Q.2(i) Prothallus develop into a sporophyte
(ii) Algae growing on snow is known as cryptophytes
(iii) The common name of Postelia Palmaeformis is known as sea palm.
(iv) Endosperm is triploid in pinus.v
Answer:a. (I) False (II) True (III) True (IV) False
Q.3(i) Apogamy and Apospory is common in pteridophytes
(ii) Spore bearing leaves in pteridophytes are known as a sorus
(iii) Branches of limited growth and branches of unlimited growth are seen in gymnosperm
(iv) Cambium occur in gymnosperm as in dicotsv
Answer:d. (I) True (II) False (III) False (IV) True
Q.4(i) Fungi play important role in soil conservation
(ii) Vascular cryptogams were predominant in the paleozoic era
(iii) Gymnosperms were dominant in the early cretaceous period.
(iv) Angiosperms appeared during the Jurassic periodv
Answer:b (I) False (II) True (III) False (IV) False
Q.5(i) Polyembryony is traced in Pteridophyta
(ii) Vessels are present in Gnetum and ephedra
(iii) Heterosporus condition is seen in Lycopodium
(iv) Corolloid root occur in Cycasv
Answer:a. (I) False (II) True (III) False (IV) True
Q.6Which one of the following is the correct statement regarding Phaeophyta
a. It is commonly known as Red Algae
b. The plant body has fronds, stipe & hold fast
c. The reserve material is Floridian starch
d. Sexual reproduction is isogamousv
Answer:b. The plant body has fronds, stipe & holdfast
Q.7Choose the right statement regarding leaves of Pteridiumsp.
a. It is used as food
b. Green dye is derived from it.
c. It is used as bio-fertilizer
d. It is an ornamental foliage plantv
Answer:b.Green dye is derived from it
9VI. Read the following assertion & reason. Find the correct answer.5 questions
Q.1Assertion: Chlorophyceae is known as green algae.
Reason: These plants have chlorophyll & chlorophyll as their major photosynthetic pigments.
(a) Assertion and Reason are correct. The reason is explaining Assertion.
(b) Assertion and Reason are correct, but Reason is not explaining Assertion.
(c) Assertion is true, but Reason is wrong.
(d) Assertion is true, but Reason is not explaining Assertion.v
Answer:(a) Assertion and Reason are correct. The reason is explaining Assertion.
Q.2Assertion: In Bryophytes haploid gametophyte, alternate with diploid sporophyte phase.
Reason: Bryophytes lack vascular tissue and hence called non-vascular cryptogams.
(a) Assertion and Reason are correct. The reason explaining Assertion.
(b) Assertion and Reason are correct, but Reason is not explaining Assertion.
(c) Assertion is true, but Reason is wrong.
(d) Assertion is true, but Reason is not explaining Assertion.v
Answer:(b) Assertion and Reason are correct, but Reason is not explaining Assertion
Q.3Assertion: Gnetum has flowers and it also has vessels as conducting elements like angiosperm.
Reason: Gnetum is a primitive gymnosperm.
(a) Assertion and Reason are correct, Reason explaining assertion.
(b) Assertion and Reason are correct, but Reason not explaining Assertion.
(c) Assertion is true, but Reason is wrong.
(d) Assertion is true, but Reason is not explaining Assertion.v
Answer:(c) Assertion is true, but Reason is wrong.
Q.4Assertion: The endosperm is haploid and develops before fertilization in a gymnosperm.
Reason: The endosperm is triploid and develops after fertilization in angiosperm.
(a) Assertion and Reason are correct. The reason explaining Assertion.
(b) Assertion and Reason are correct, but Reason is not explaining Assertion.
(c) Assertion is true, but Reason is wrong.
(d) Assertion is true, but Reason is not explaining Assertion.v
Answer:(b) Assertion and Reason are correct, but Reason is not explaining Assertion.
Q.5Assertion: The embryogeny is endoscopic in Bryophytes.
Reason: The first division of the zygote is transverse & the apex of the embryo develops from the outer cell.
(a) Assertion and Reason are correct, Reason explaining Assertion.
(b) Assertion and Reason are correct, but Reason is not explaining Assertion.
(c) Assertion is true, but Reason is wrong.
(d) Assertion is true, but Reason is not explaining Assertion.v
Answer:(a) Assertion and reason are correct, Reason explaining Assertion.
VII. In the following diagram what are the parts (A) (B) (C) (D) representing?