BIOLOGY Daily Practice Problems MEDICAL ENTRANCE - 2020 CLASS : XI TOPIC : PLANT KINGDOM DPP. NO.-03 SECTION - A Q.1 Identify A, B, C, D & E in given diagram. Answer : A. ________ A B. ________ C. ________ D. ________ B E. ________ C D E Q.2 Identify A, B & C in given diagram. Answer : A A. ________ B. ________ C. ________ B C Q.3 Identify A, B & C in given diagram. Answer : A. ________ B. ________ C. ________ A B C Q.4 (i) Identify A & B. (ii) Which stage show by part (1) & (2) Answer : A A. ________ B B. ________ (1) (2) Q.5 (i) Identify A & B in given diagram. (ii) What is syngamy. A Answer : A. ________ B. ________ (1) B (2) Q.6 Identify A, B & C in given diagram. Answer : B A. ________ B. ________ A C. ________ SECTION - B Q.7 The sporophytes bear sporangia that are subtended by leaf-like appendages called ________. Q.8 In majority of the pteridophytes all the spores are of similar kinds; such plants are called ________. Q.9 The cones bearing megasporophylls with ovules or ________ are called macrosporangiate or ________. Q.10 The nucellus is protected by envelopes and the composite structure is called an ________. Q.11 Unlike the gymnosperms where the ovules are naked, in the angiosperms or flowering plants, the pollen grains and ovules are developed in specialised structures called ________. Q.12 Within ovules are present highly reduced female gametophytes termed ________. Q.13 The dominant, photosynthetic phase in such plants is the free-living gametophyte. This kind of life cycle is termed as ________. Q.14 The gametophytic phase is represented by the single to few-celled haploid gametophyte. This kind of lifecycle is termed as ________. SECTION - C Q.15 In most of the brown algae asexual reproduction takes place by - (1) Auxospores (2) Aplanospores (3) Pear shaped/pyriform biflagellate zoospores (have lateral, unequal flagella) (4) Multifagellate zoospore Q.16 In brown algae the gametes are - (1) Only isogametes (2) Only coenaplanogamete (3) Only multiflagellate gamete (4) Pyriform/pea shaped gametes having unequal 2 laterally attached flagella Q.17 Which one is correct about sexual reproduction in brown algae? (1) Sexual reproduction may be isogamy anisogamy or oogamy (2) In isogamy and oogamy fertilization is external (in water) (3) In oogamy fertilization occurs in oogonium (4) All are correct Q.18 Which of the following is correct? (1) In brown algae as well as red algae vegetative reproduction takes place by fragmentation (2) In red algae algal predominant pigments is r- phycoerythrin (3) Reserved food, floridean starch in red algae is very similar to amylopectin and glycogen in structure (4) All are correct Q.19 Chl a + Chl d + r-phycoerythrin are the pigments in the members of - (1) Rhodophyceae (2) Phaeophyceae (3) Chlorophyceae (4) Cyanophyceae Q.20 Which of the following statements does not characterize the red algae - (1) Floridean starch (reserve food) (2) Both spores and gametes are nonmotile (3) Post fertilization development is like other algae (4) Red algae can vary their ratio of photosynthetic pigments depending upon the light conditions Q.21 Porphyra and Polysiphonia belong to- (1) Chlorophyceae (2) Rhodophyceae (3) Xanthophyceae (4) Phaeophyceae Q.22 Bryophytes include- (1) Mosses (2) Lycopods (3) Horse tail (4) Liverworts+mosses Q.23 Bryophytes mostly grow - (1) in dry area (2) In snow (3) In moist shaded areas in hills, damp+humid+shaded localities (4) In water Q.24 Bryophytes are called “Amphibians of the plant kingdom” because- (1) They are found in only water (2) Plants live in soil but are dependent on water for sexual reproduction (3) It needs water for spores formation (4) Water is essential for its survival Q.25 Plant body of bryophyte is- (1) Less differentiated than that of algae (2) Equally differentiated to that of Algae (3) More differentiated to that of algae (4) Is not differentiated at all Q.26 The plant body of bryophytes is thallus-like and prostate or erect, and attached to substratum by - (1) Unicellular roots (2) Multicellular roots (3) Unicellular or multicellular rhizoids (4) Adhesive Q.27 The plant body of all bryophytes are gametophyte, haploid and thallus like having- (1) Root + Stem + Leaf (2) No root + no stem + no leaf (3) Xylem and phloem (4) Wood Q.28 The gametophytes in bryophytes produces biflagellate gametes (antherozoids) in__________and pro- duces ovum (female gamete) in___________. (1) Antheridium, carpogonium (2) Anther, ovary (3) Archegonium, antheridium (4) Antheridium, archegonium Q.29 Choose the correct option - (1) In bryophytes sexual reproduction is oogamous type (2) Sex organs are unicellular in algae and fungi but multicellular in bryophytes to angiosperms (3) Archegonium is flask shaped (4) All Q.30 Which is the prominent phase in the life cycle of bryophytes - (1) Gametophyte (2) Sporophyte (3) Seta (4) Sporogonium.