(a) Spores, elaters and nutritive cells (b) Spores and nutritive cells (c) Elaters and spores (d) Spores only Ans. b (16)
(a) Thallus (b) Capsule (c) Zygote (d) Spore Ans. c (5)
(a) Rounded (b) Cup-shaped (c) Star-shaped (d) Flask–shaped Ans. d (8)
(a) Sporophyte (b) Gametophyte (c) Aquatic (d) Sporophyte Ans. b (8)
(a) Egg (b) Zygote (c) Antherozoids (d) Spore mother cells Ans. d (11)
a. Frenkel defect b. Schottky defect c. Metal deficiency defect d. Metal excess defect Ans. d Explanation : In metal excess defect when holes created by missing of anions are occupied by electrons, there sites are called F- centres and …
a. Brass is an interstitial alloy, while steel is a substitutional alloy, while steel is a substitutinal b. Brass is a substitutional alloy, while steel is an interstitital alloy c. Brass and steel are both substitutional alloys d. Brass and …
Ag+ << Br– . The AgBr crystal should have the following characteristics a. Defectless (perfect) crystal b. Schottky defect only c. Frenkel defect only d. Both Schottky and Frenkel defects Ans. d Explanation : In AgBr both Schottky and Frenkel …
a. Softer b. less tensile c. less malleable d. more ductile Ans. b Explanation : On adding non-metal the metal become less tensile (4)
a. Establishing thermal equilibrium b. Having tendency to diffuse c. Contributing to scattering d. Introducing new electronic energy levels Ans. a Explanation : Impurity present in a crystal does not establish thermal equilibrium (17)
a. NaCl b. KCl c. CsCl d. All of these Ans. d Explanation : Schottky defects occurs in highly ionic compounds which have high co-ordination number ex. NcCl, KCl, CsCl. (9)
a. Frenkel defect b. Metal excess defect c. Metal deficiency generally defect d. Schottky defect Ans. b (9)
a. Positive ions and negative ions are of different size b. Positive ions and negative ions are of same size c. Positive ions are small and negative ions are big d. Positive ions are big and negative ions are small …
(a) Protonema (b) Prothallus (c) Proembryo (d) Embryo Ans. a (10)
(a) Pteridophytes (b) Pines (c) Monocots (d) Dicots Ans. a (7)
(a) Gametophyte (b) Sporophyte (c) Both (a) and (b) (d) None of these Ans. b (9)
(a) Peristome teeth (b) Annulus (c) Calyptra (d) Operculum Ans. a (5)
(a) Spirogyra (b) Mucor (c) Moss (d) Both (b) and (c) Ans. c (13)
(a) Antheridia (b) Capsule (c) Protonema (d) Archegonium Ans. d (7)
(a) Hydrophobic (b) Sensitive to touch (c) Hygroscopic (d) None of the above Ans. c (5)
Poly – β – hydroxybutyrate – co – β hydroxyvalerate is (PHBV) is a copolymer of a. 3 – hydroxbutanoic and 2 – hydroxypentanoic acid b. 3 – hydroxbutanoic and 4 – hydroxypentanoic acid c. 2 – hydroxbutanoic and 3 …
(a) Antheredium (b) Protonema (c) Archegonia (d) Capsule Ans. b (6)
(a) Meroblastic (b) Coeloblastic (c) Metablastic (d) Holoblastic Ans. d (6)
(a) Antheridiophore (b) Archegoniophore (c) Sporophyte (d) Gametophyte Ans. c (8)
(a) Haploid (b) Tetraploid (c) Diploid (d) Triploid Ans. c (6)
(a) Fertile tissue (b) Photosynthesis (c) Nutrition (d) Protecting tissue Ans. c (7)
(a) Xylem (b) Phloem (c) Pith (d) Conducting tissue Ans. d (59)
(a) Prothallus (b) Sporophyte (c) Protonema (d) Gametophyte Ans. c (8)
(a) Chlorophyll–a (b) Chlorophyll–b (c) Chlorophyll–c (d) Chlorophyll–d Ans. a (10)
(a) Always autotrophic (b) Always heterotrophic (c) Both (a) and (b) (d) None of the above Ans. c (8)
(a) Fossil pteridophyte (b) A part of the sporophyte of Funaria (c) The juvenile phase of the moss gametophyte (d) None of the above Ans. c (12)
(a) Spore (b) Protonema (c) Columella (d) Paraphysis Ans. c (7)
(a) Buds (b) Colourless rhizoids (c) Oblique septa and discoid chloroplast (d) All of the above Ans. d (8)
(a) Xylem and phloem (b) Parenchyma (c) Collenchyma (d) Xylem Ans. b (29)
(a) In the epidermis of stem (b) In the capsule epidermis (c) In the leaf epidermis (d) All the above Ans. b (5)
(a) No fruits are produced (b) No seeds are produced (c) Antheridia and archegonia are present (d) Presence of sporophyte Ans. b (46)