CBSE Class 11 Biology Plant Kingdom MCQs Set 07

Question: Which of the following is not a true moss?
a) Funaria
b) Polytrichum
c) Nest moss
d) Sphagnum
Answer: c

Question: A mature pollen grain of Pinus has:
a) 2 cells
b) 3 cells
c) 4 cells
d) 5 cells
Answer: c

Question: Spores dispersal in mosses occurs by:
a) Elaters
b) Simple mechanism
c) Elaterophores
d) Elaborate mechanism
Answer: d

Question: Sphagnum is also called peat moss because it
a) grows in acidic marshes and helps in peat formation
b) fossilizes quickly
c) decays to form peat
d) is found in peat
Answer: c

Question: Seed habit is linked with:
a) Homospory
b) Heterospory
c) Parthenogenesis
d) Parthenocarpy
Answer: b

Question: A moss sperm moves by means of:
a) cilia
b) 3 flagella
c) 2 flagella
d) many flagella
Answer: c

Question: In mosses, the gametophyte has two stages. These stages are:
a) sporogonium and protonema
b) protonema and leafy stage
c) gemmae formation and meiosis
d) zygote and spore mother cell
Answer: b

Question: Multicellular sporophytic phase is expected in the life cycle of:
a) diatoms
b) bryophyta
c) euglenoids
d) green algae
Answer: b

Question: What is the importance of pteridophytes?
a) They are used for medicinal purposes
b) They are used as soil binders
c) They are frequently grown as ornamental plants
d) All
Answer: d

Question: The mosses that form dense mats on soil help prevent:
a) falling of leaves
b) soil erosion
c) evaporation of water
d) uprooting of trees
Answer: b

Question: Bryophytes show:
a) asexual reproduction and zygotic meiosis
b) asexual reproduction and sporic meiosis
c) no asexual reproduction but sporic meiosis
d) gametophytic dominance and zygotic meiosis immediately
Answer: b

Question: Sphagnum provides:
a) agar
b) antibiotics
c) peat
d) oil
Answer: c

Question: In mosses, asexual reproduction occurs by:
a) fragmentation and budding in secondary protonema
b) gemmae and adventitious buds
c) gemmae and tubers
d) multiflagellate spores
Answer: a

Question: A true moss is one:
a) with protonema and multicellular rhizoids
b) with leaf, axis, and spirally arranged leaves
c) both a and b
d) with vascular tissues
Answer: c

Question: Choose the incorrect statement:
a) all pteridophytes are found in cool, damp, shady places
b) some pteridophytes grow in sandy soils
c) most pteridophytes prefer cool, damp, shady places
d) very few pteridophytes are hydrophytes
Answer: a

Question: Vascular cryptogams are:
a) gymnosperms
b) angiosperms
c) bacterioids
d) pteridophytes/ferns
Answer: d

Question: Fruits are not found in gymnosperms because:
a) they are seedless
b) they are not pollinated
c) they have no ovary
d) fertilisation does not take place
Answer: c

Question: Plant body in pteridophytes is:
a) sporophyte without true organs
b) gametophyte with root, stem, leaf
c) gametophyte without true organs
d) sporophyte with true root, stem, leaf
Answer: d

Question: Which of the following is not common between Funaria and Selaginella?
a) roots
b) embryo
c) flagellate sperms
d) archegonium
Answer: a

Question: In Pinus, the male gametes are:
a) Uniciliate
b) Multiciliate
c) Biciliate
d) Non-ciliate
Answer: d

Question: Fern gametophyte is nutritionally:
a) Photoautotroph
b) Parasite
c) Chemoautotroph
d) Saprophyte
Answer: a

Question: Which of the following has amphiphloic-siphonostele?
a) Rhizome of Marsilea
b) Stem of Lycopodium
c) Rhizome of Pteris
d) Stem of Equisetum
Answer: a

Question: Coralloid roots of Cycas possess a symbiotic alga:
a) Anabaena
b) Spirogyra
c) Ulothrix
d) Aulosira
Answer: a

Question: The seed coat in both gymnosperms and angiosperms is derived from:
a) Megaspore
b) Microspore
c) Integument of megasporangium or ovule
d) Microsporangium
Answer: c

Question: Like gymnosperms, the angiosperms also exhibit:
a) Heterospory
b) Siphonogamy
c) Seed formation
d) All of these
Answer: d

Question: The life cycle of Ectocarpus and Polysiphonia is:
a) Haplo-diplontic
b) Haplontic
c) Diplontic
d) Both haplontic and diplontic
Answer: a

Question: Which one is a living fossil?
a) Pinus
b) Selaginella
c) Cycas
d) Metasequoia
Answer: c

Question: In Cycas, pollination occurs at the ______ celled stage:
a) One
b) Two
c) Three
d) Four
Answer: c

Question: Embryo sac represents:
a) Megaspore mother cell
b) Female gametophyte
c) Megaspore
d) Microsporangium
Answer: b

Question: Female cone of Pinus develops seeds in:
a) One year
b) 2–3 years
c) Two years
d) Four years
Answer: b

Question: Branched rhizoids and leafy gametophytes are characteristic of:
a) All bryophytes
b) Some pteridophytes
c) All pteridophytes
d) Some bryophytes
Answer: d

Question: Heterospory and seed habit are often discussed in relation to:
a) Spathe
b) Bract
c) Petiole
d) Ligule
Answer: d

Question: Flagellated male gametes are present in which of the following sets?
a) Anthoceros, Funaria and Spirogyra
b) Zygnema, Saprolegnia and Hydrilla
c) Fucus, Marsilea and Calotropis
d) Riccia, Dryopteris and Cycas
Answer: d

Question: Polar nuclei fuse to produce:
a) Diploid secondary nucleus
b) Zygote
c) Antipodal cells
d) Synergids
Answer: a

Question: Fusion product of polar nuclei is referred to as:
a) Primary endosperm
b) Secondary endosperm
c) Secondary nucleus
d) Zygote
Answer: c

Question: The plant life cycle has both sporophyte and gametophyte generations. In the sporophyte stage:
a) Gametes are produced
b) Meiosis occurs
c) Only mitosis takes place
d) Gametophytes form
Answer: c

Question: The life cycle of gymnosperms is:
a) Haplontic
b) Haplo-diplontic
c) Diplontic
d) Diplo-haplontic
Answer: c

Question: In gymnosperms, one megaspore develops into a multicellular structure called:
a) Female gametophyte
b) Archegonium
c) Ovule
d) Strobilus
Answer: a

Question: In which feature does Cycas resemble angiosperms?
a) Presence of vessels
b) Circinate venation
c) Dichotomous leaves
d) Pollen tube acts as carrier of male gametes
Answer: d

Question: Brown colour of Phaeophyceae is due to excess of
a) Fucoxanthin
b) Phycoerythrin
c) Lycopene
d) Zeaxanthin
Answer: a

Question: The winged pollen grains are a characteristic feature of
a) Cycas
b) Ephedra
c) Pinus
d) Gnetum
Answer: c

Question: Sago obtained from the pith of Cycas revoluta is used as food for patients with stomach disorders because
a) It is much tastier
b) Its nutritive value is very high
c) It contains adequate amount of starch
d) It is a cheap food article
Answer: c

Question: Match the columns and find out the correct combination:

a. A-2 B-4 C-2 D-1
b. A-1 B-3 C-4 D-2
c. A-1 B-2 C-4 D-3
d. A-1 B-2 C-3 D-4
Answer: c 

Question: Match the columns and find out the correct combination:

a. A-4 B-1 C-2 D-3
b. A-4 B-2 C-1 D-3
c. A-4 B-2 C-3 D-1
d. A-2 B-4 C-1 D-3
Answer: b

Question: Match the columns and find out the correct combination:

Question: Incorrect statement are:
A. Since mosses form dense mats on the soil, they reduce the impact of falling rain and prevent soil erosion.
B. The plant body of bryophytes is more differentiated than that of algae, it is thallus like and prostrate or erect, and attached to the substratum by unicellular or multicellular rhizoids.
C. Many species of Spirogyra, Vaucheria and Chara are among the 70 species of marine algae used as food.
D. Majority of the red algae are marine with greater concentrations found in the warmer areas.
E. The common phaeophytes are Polysiphonia, Porphyra, Gracilaria and Gelidium.
F. Bryophytes and pteridophytes, interestingly, exhibit an intermediate condition of life cycle (Haplodiplontic), in which both phases are multicellular but they diffuse in their dominant phases.
a. C and E
b. A, B and F
c. B, C and F
d. B and D
Answer: a

Question: Select incorrect statement with respect to Cycas female sex organ.
a. Female sex organ is female cone.
b. Megasporophyll is laterally placed at the tip of plant.
c. Ovules are arranged laterally in notches of megasporophyll.
d. Ovules are not surrounded by ovary wall.
Answer: a