PLANT KINGDOM INTRODUCTION,SPIROGYRA AND RHIZOPUS-ASSIGNMENT

1	Sex organs of Bryophytes are I. Stalked II. Multicellular III. Jacketed I and II II and III I and III I, II and III Ans:I, II and III
2	[A]: Funaria is a Bryophyte [R]: It has embryo Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:Both A and R are true but R is not the correct explanation of A
3	The following bryophyte exhibits symbiosis Azolla Funaria Anthoceros Marchantia Ans:Anthoceros
4	Bryophytes are I. First land plants II. First Archegoniates III. Primitive embryophytes IV. First Oogamous plants I and II I, II, III All except III II, III, IV Ans:I, II, III
5	In Pteridophytes The gametophyte and sporophyte are equally developed Both gametophyte and sporophyte are independent Archegonia have cover cells Sporophyte has sex organs Ans:Both gametophyte and sporophyte are independent
6	Pteridophytes are First land plants First Archegoniates First Tracheophytes First Embryophytes Ans:First Tracheophytes
7	A sorus of Pteris with 100 sporangia is developed from 100 sporangial initials. Pteris is best described as Eusporangiate Pteridophyte Leptosporangiate Pteridophyte Monosporangiate pteridophyte Eupteridophyte Ans:Leptosporangiate Pteridophyte
8	Fronds of Pteridophytes are Microphylls Macrophylls Microsporophylls Megasporophylls Ans:Macrophylls
9	Gymnosperms do not have I. Ovary II. Perianth III. Endosperm IV. Pericarp all All except II all except III all except IV Ans:all except III
10	All gymnosperms lack Vessels Companian cells Perforation plate Annual rings Ans:Companian cells
11	The following structures form cones in Gymnosperms I. Foliage leaves II. Scale leaves III. Microsporophylls IV. Megasporophylls III, IV I, II I, III II, IV Ans:III, IV
12	Embryo of Gymnosperms gets nourishment from Nucellus Triploid endosperm Female gametophyte Integument Ans:Female gametophyte
13	Match the following A - III, B - IV, C - II, D - V A - III, B - I, C - II, D - V A - II, B - IV, C - I, D - III A - III, B - V, C - II, D - IV Ans:A - III, B - I, C - II, D - V
14	Match the following A - II, B - IV, C- III, D - I A - III, B - V, C - I, D - II A - II, B - IV, C - III, D - V A - II, B - III, C - IV, D - I Ans:A - II, B - IV, C- III, D - I
15	[A]: Pond scum is named as Spirogyra [R]: Its filaments are entangled with each other in free floating forms Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:Both A and R are true but R is not the correct explanation of A
16	Demorphic cells are seen in I. Spirogyra jogensis II. Spirogyra adnata III. Spirogyra mirabilis IV. Spirogyra affinis All except I All except III All except IV All Ans:All
17	If a free floating monoecious of Spirogyra has 40 cells and all of its cells are involved in sexual reproduction, how many meiotic and mitotic nuclei are degenerated during the formation of daughter filaments with each filament having 40 cells. 60, 40 80, 20 60, 20 60, 0 Ans:60, 20
18	[A]: Life cycle of Spirogyra is haplontic [R]: It has no diploid stages in its life cycle Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:A is true but R is false
19	[A]: Spirogyra gratiana shows scalariform conjugation [R]: It is dioecious Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:A is true but R is false
20	Male gamete of Spirogyra jogensis differs with female gamete in I. Size II. Shape III. Function I and II II and III I and III I, II, III Ans:I, II, III
21	In a free floating indirect lateral conjugating filament of Spirogyra, there are 50 cells. Upon successful completion of sexual reproduction, there is formation of free floating daughter filaments with each one having same number of cells as that of parental filament. During this course, the total number of nuclei formed and number of formed nuclei not involved as a part of the free filaments are respectively 1250, 75 1250, 100 1350, 75 1350, 100 Ans:1350, 100
22	Presence of mucilage ribs arranged parallel to long axis of the cell is a feature of Male gametangium of Spirogyra affinis Female cell with Zygospore of Spirogyra jogensis Female cell with zygospore of Spirogyra affinis Female cell of Spirogyra gratiana Ans:Female cell with Zygospore of Spirogyra jogensis
23	The sequence of events that take place during scalariform conjugation are I. Secretion of mucilage II. Formation of Papillae III. Complete formation of gametes IV. Opposite alignment of male and female filaments IV, I, II, III IV, II, I, III I, III, II, IV IV, III, II, I Ans:IV, I, II, III
24	Rattan studied Scalariform conjugation in Spirogyra gratiana Lateral conjugation in Spirogyra affinis Direct lateral conjugation in Spirogyra mirabilis Indirect lateral conjugation Ans:Direct lateral conjugation in Spirogyra mirabilis
25	In isogamous species of Spirogyra, the zygospores are formed in Female cell Male cell Papillae Conjugation canal Ans:Conjugation canal
26	The enzyme cytase has no role in the sexual reproduction of I. Spirogyra gratiana II. Spirogyra mirabilis III. Spirogyra jogensis IV. Spirogyra affinis I and II II and III III and IV I and IV Ans:II and III
27	Chain like appearance of Spirogyra filament is noticed during Scalariform conjugation Conjugation of Spirogyra jogensis Conjugation of Spirogyra mirabilis Conjugation of Spirogyra affinis Ans:Conjugation of Spirogyra affinis
28	Decay of parental cell wall is noticed during non-sexual reproduction in Spirogyra gratiana Spirogyra farlowii Spirogyra aplanosporum Spirogyra mirabilis Ans:Spirogyra aplanosporum
29	If a Spirogyra free floating filament with 20 cells is broken into pieces with each fragment consisting of 5 cells, how many mitotic divisions have to occur to form daughter filaments with each filament having same number of cells as that of parental filament 15 60 4 80 Ans:60
30	Study the following table and choose the correct combination I and II II and III I and IV II and IV Ans:I and II
31	Filaments show apical basal differentiation in I. Spirogyra gratiana II. Spirogyra jogensis III. S. adnata I and II II and III I and III All Ans:II and III
32	In the vegetative cells of Spirogyra venkataramanii, I. Nuclei and Chloroplasts exist in 1:1 ratio II. No of Pyrenoids in a cell and chloroplasts in 1:1 ratio III. Pyrenoids and Cytoplasmic strands exist in 1:1 ratio IV. Cells and chloroplsts exist in I:1 ratio I and II are correct II and III are correct III and IV are correct II and III are incorrect Ans:II and III are incorrect
33	[A]: All Pond scums are pond silks [R]: All pond silks are pond scums Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:A is true but R is false
34	Choose the correct statement All species of Spirogyra are flee floating Most of the species of Spirogyra are fresh water forms All species of Spirogyra are freshwater forms Spirogyra jogensis is free floating species Ans:All species of Spirogyra are freshwater forms
35	[A]: Species of Spirogyra are cosmopolitan in distrubution [R]: Speies of Spirogyra uniformly distributed in various climatic regions of the world Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:A is true but R is false
36	Primordial utricle of Spirogyra cell lacks Chloroplast Mitochondria Cytoplasm Nucleus Ans:Nucleus
37	Enzymes secreted by Rhizoidal hyphae are Ligases Lyases Hydrolases Transferases Ans:Hydrolases
38	Study the following table with respect to Rhizoids and choose the correct combination I and III II and IV I and III III and IV Ans:I and III
39	[A]: The hyphae of Rhizopus that spread on the surface of substratum are called as Stolons [R]: The length of the stolon between two adjacent rhizoids emanating points is different from the other two adjacent rhizoids formation points of the same mycelium Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:Both A and R are true and R is the correct explanation of A
40	If 54 cells of monoecious filament of Spirogyra are involved in sexual reproduction, the total number of haploid nuclei formed in all zygospores during their germination and number of daughter filaments formed are respectively 108, 27 54, 54 108, 54 108, 108 Ans:108, 27
41	Rhizopus belongs to class Oomycetes Zygomycetes Mucoromycetes Ascomycetes Ans:Zygomycetes
42	Choose the correct statement All species of Rhizopus are obligate saprophytes Most of the species of Rhizopus are facultative parasites Most of the Rhizopus species are facultative saprophytes Some species of Rhizopus are facultative parasites Ans:Some species of Rhizopus are facultative parasites
43	The stages of Rhizopus in correct sequence are Bread mould, Black mould, Pin mould Pin mould, Black mould, Bread mould Bread mould, Pin mould, Black mould Black mould, Bread mould, Pin mould Ans:Bread mould, Pin mould, Black mould
44	The hyphae seen in vegetative stage of Rhizopus are I. Sporangiophores II. Stolons III. Zygophores IV. Rhizoids I and II II and III III and IV II and IV Ans:II and IV
45	The features of Rhizopus hyphae are Transparent, Tubular, Coenocytic Opaque, Flat, Coenocytic Septate, Tubular, Coenocytic Multinucleate, Multicellular, Multivacuolar Ans:Transparent, Tubular, Coenocytic
46	Rhizopus mycelium absorbs food materials from the substratum in the form of Amino acids Organic acids Sugars Polysaccharides Ans:Sugars
47	Only during asexual stage Rhizopus can be referred as I. Weed of the laboratory II. Bread mould III. Pin mould IV. Black mould I and II II and III III and IV I and IV Ans:III and IV
48	Sporangiospores of Rhizopus are Round and black Round and Brown Ellipsoidal, Brown Ellipsoidal, Black Ans:Round and black
49	The structure of Sporagium of Rhizopus that delimits the sporoplasm from columelloplasm is Brain of the cell Suicidal bag of the cell Repositories of the cell Power houses of the cell Ans:Repositories of the cell
50	Columella of Rhizopus is Spherical hemispherical Dome shaped Omega shaped Ans:Dome shaped
51	These are relatively more persistent structures of asexual hyphae Columella Spores Sporangial wall Sporoplasm Ans:Columella
52	The structures of Rhizopus that aid in the discharge of spores from the sporangium are I. Columella II. Sporangiophore III. Stolons I, III I and II I, II, III only I Ans:I and II
53	Hypha of Rhizopus with chlamydospores can be described as Coenocytic, Aseptate, Multicellular Coenocytic, Septate, Unicellular Uninucleate, Septate, Multicellular Multinucleate, Septate, Multicellular Ans:Multinucleate, Septate, Multicellular
54	Arrange the following events of Sporangiospore formation in correct sequence. I. Dome shaped arrangement of vacuoles II. Sporoplasm differentiation IV. Degeneration of nuclei of columella I, II, III, IV II, I, III, IV II, I, IV, III II, III, I, IV Ans:II, I, III, IV
55	Choose the correct statement Sporangiospores are usually 8-10 nucleted Sporangiospores are always uninucleated Sporangiospores are formed singly Sporangiospores are usually 2-10 nucleated Ans:Sporangiospores are usually 2-10 nucleated
56	Arrange the following events of sporangiospore formation in correct sequence. I. Cleft formation II. Cleavage of soporiferous zone III. Columelloplasm demarcation IV. Wall formation around polyhedral pieces III, I, II, IV III, II, I, IV I, III, II, IV II, I, IV, III Ans:III, I, II, IV
57	Choose the incorrect statement with respect to sporangiospore formation in Rhizopus Sporoplasm has less no. of vacuoles and more nuclei Columelloplasm has less nuclei and more vacuoles Nuclei of columella show degeneration Vacuoles of soporiferous zone gradually disappear Ans:Vacuoles of soporiferous zone gradually disappear
58	Rhizopus does not show I. Isogamy II. Anisogamy III. Physiological anisogamy IV. Oogamy I and II II and III II and IV I and III Ans:II and IV
59	A, B, C and D are the mycelia of a species of Rhizopus. Zygospore formation is seen when A is grown along with D. Zygospore formation is noticed when B is grown along with C. When C is with D no such zygospore formatin is not noticed. With respect to the above choose the correct statements I. Zygospores can be formed when C is grown with A II. Zygophore formation can be noticed when B is grown with D III. Zygospores are not formed when B is grown with A IV. A belong to one type strain and C and D belong to another type of strain All except IV All except III only I and II are correct II and IV are correct Ans:All except IV
60	Arrange the following events of sexual reproduction in Rhizopus stolonifer in correct sequence. I. Formation of suspensor II. Pairing of compatible nuclei III. Formation of Zygophores IV. Fusion of gametangia III, I, IV, II III, IV, I, II I, III, IV, II III, I, II, IV Ans:III, I, IV, II
61	Choose the wrong statement Suspensor and Gametangium are the parts of progametangium Progametangium is the branch of Zygophore Suspensor and Gametangium have Protoplasmic contact One gametangium can establish protoplasmic contact with another gametangium Ans:Suspensor and Gametangium have Protoplasmic contact
62	Simultaneous events that occur during sexual reproduction of Rhizopus stolonifer are Gametangial formation and Gametangial union Spliting of zygospore exine, Meiosis in the zygospore Zygospore dormancy, Meiosis in Zygospore Meiosis, Germ sporangium formation Ans:Spliting of zygospore exine, Meiosis in the zygospore
63	Identify the correct sequence of events that occur during germination of Rhizopus Zygospore. I. formation of meiospores II. Meiosis III. Formation of Germ sporangium IV. Promycelium formation II, III, IV, I II, IV, III, I II, I, III, IV IV, II, III, I Ans:II, IV, III, I
64	Match the following A - IV, B - I, C - II, D - V A - IV, B - II, C - V, D - III A - V, B - II, C - III, D - IV A - IV, B - III, C - II, D - V Ans:A - IV, B - III, C - II, D - V
65	[A]: Gametangia of one mycelium of Rhizopus sexualis can not fuse with gamtangia of another mycelium of the same species [R]: Rhizopus sexualis is not heterothallic Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:A is false but R is true
66	A + strain progametangium of Rhizopus stolonifer has 108 nuclei and –strain progametangium 124 nuclei. Upon successful completion of sexual reproduction, there is formation of 224 daughter mycelia. What must be the minimum number of nuclei that each gemetangium is expected to contain. 112 108 56 224 Ans:56
67	Choose the incorrect set Prommycelium – Diploid – Germ sporangium Zygospore – Diploid – Double layered wall Germ sporangium – Meiospores – No columella Rhizopus stolonifer – Heterothallic – Physiological anisogamy Ans:Prommycelium – Diploid – Germ sporangium
68	Singly forming hyphae of Rhizopus are I. Zygophores II. Sporangiophores III. Rhizoids IV. Promycelium I and II II and III I and IV II and IV Ans:I and IV
69	[A]: Life cycle of Rhizopus is haplontic [R]: All stages of Rhizopus life cycle are haploid Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:A is true but R is false
70	Non-septate structures of Rhizopus are I. Promycelium II. Sporangiophores III. Progametangium IV. Rhizoids V. Stolons all except IV and V all except I and IV All except III and IV All except I and II Ans:all except I and IV
71	During sexual reproduction of Rhizopus, degeneration of nuclei is noticed in the following structures. Progametangium Gametangium Zygospores Suspensor Ans:Zygospores
72	The following event can not be seen in the life cycle of Rhizopus Septum formation Activity of Golgi complex Cell plate formation Pachytene Ans:Cell plate formation
73	The structures of Rhizopus that show the degeneration of nuclei are I. Columella II. Germ sporangium III. Young zygospore IV. Mature zygospore II and III III and IV I and II I and III Ans:I and III
74	Zygophores of Rhizopus are Specially formed hyphae from stolons Transformed stoloniferous hyphae Aerial hyphae of Rhizoids Hyphae formed upon sporangiospore germination Ans:Transformed stoloniferous hyphae
75	Apical growth of following structures of Rhizopus is limited Stolons Rhizoids Promycelium Vegetative hyphae Ans:Promycelium