Quiz_Bryophyta 1. Spirogyra differs from moss protonema in having : Branched filaments Pyrenoids Rhizoidal branches Discoid chloroplasts Explanation:Spirogyra differs from moss protonema in having pyrenoids, which are structures associated with the chloroplasts that aid in the synthesis and storage of starch. 2. The life cycle of Funaria is not completed without water because of: Funaria is very delicate Funaria is aquatic Zooidogamic fertilization Branches are not formed without water Explanation:Funaria, like other bryophytes, requires water for zooidogamic fertilization, where the motile sperm swims through water to reach the egg. This dependence on water is crucial for their reproductive cycle. 3. In Funaria, the leaves are arranged on the axis: Spirally Oppositely None of these Alternately Explanation:The leaves of Funaria are arranged spirally around the stem, which maximizes light capture and space efficiency for photosynthesis. 4. The plants which produce embryo but lack vascular tissue and seeds are placed in : Bryophyta Thallophyta Phanerogams Pteridophyta Explanation:Bryophyta includes plants that produce embryos but lack vascular tissue and seeds, distinguishing them from higher plants like ferns and seed plants. 5. In between the sex organs of Funaria are found a number of hair-like structures which are known as : Paraphysis Apophysis None of these Cleistothecium Explanation:Paraphysis are hair-like structures found between the sex organs in Funaria, providing support and protection to the reproductive organs. 6. When the gametophyte is not formed by spores but by any other part of sporophyte it is known as : Apospory Germination Multispory Polyspory Explanation:Apospory is the process where the gametophyte is formed from parts of the sporophyte other than spores, often as a form of vegetative reproduction. 7. Rhizoids of Riccia are : Unicellular and smooth walled only Unicellular, smooth walled and tuberculate Multicellular with oblique septa Unicellular and tuberculate only Explanation:The rhizoids of Riccia are unicellular, smooth-walled, and tuberculate, which helps in anchoring the plant and absorbing water and nutrients. 8. In Funaria, calyptra is derived from : Columella Antheridium Archegonium Capsule Explanation:The calyptra in Funaria is derived from the archegonium and serves as a protective cap for the developing sporophyte. 9. Funaria are commonly found : On damp ground In water In sea As epiphytes Explanation:Funaria typically grows on damp ground where there is sufficient moisture to support its growth. This environment provides the necessary conditions for its reproductive cycle and overall development. 10. Gametophyte is the main plant body in : Gymnosperms Bryophyta Angiosperms Pteridophyta Explanation:In bryophytes, the gametophyte is the dominant and main plant body, unlike in other plant groups where the sporophyte is dominant. 11. The plants of Funaria grow : In pairs Solitary As saprophytes In aggregates Explanation:Funaria plants often grow in dense clusters or aggregates, which helps them retain moisture and provides a microenvironment conducive to growth and reproduction. 12. The common name of Funaria, by which it is generally known, is : Peat moss Pond moss Green moss/Cord moss Bog moss Explanation:Funaria is commonly referred to as green moss or cord moss due to its appearance and structure. These names are derived from its lush green color and the cord-like arrangement of its leaves. 13. In Funaria : Male and female reproductive organs are on the same plant but on different branches Male and female reproductive organs are on different plants None of the above Male and female reproductive organs are on the same plant and on the same branch Explanation:In Funaria, male and female reproductive organs are found on the same plant but on different branches, allowing for close proximity for fertilization while preventing self-fertilization. 14. The antheridia in Funaria are formed at the apex of the male shoot in : As solitary organs Groups of two Groups of many Groups of three Explanation:The antheridia of Funaria are formed in groups of many at the apex of the male shoot, which aids in the efficient release of sperm cells for fertilization. 15. The leaves of Funaria are : Stalked Sessile None of these Petiolate Explanation:The leaves of Funaria are sessile, meaning they are directly attached to the stem without a petiole. 16. The green upright sterile hair-like structures among the antheridia in moss are known as : Perigonial leaves Paraphysis Trabeculae Apophysis Explanation:Paraphysis are sterile hair-like structures found among the antheridia in mosses, providing structural support and protection to the reproductive organs. 17. Where are the antheridia and archegonia situated in moss? In the axil of leaves On the apex of leaves On the base of stem On apex of axis Explanation:In mosses, antheridia and archegonia are typically situated at the apex of the axis, which is the tip of the stem or branch. 18. In moss, stomata are found: On axis On leaf In theca In apophysis Explanation:In mosses, stomata are typically found in the apophysis, which is the swollen region at the base of the capsule. This structure plays a role in gas exchange and water regulation. 19. Funaria is : Dioecious Monoecious None of the above Monoecious or Dioecious Explanation:As mentioned earlier, Funaria is monoecious, meaning it has both male and female reproductive organs on the same plant, facilitating self-fertilization. 20. Bryophyta have a special character from other plants: They do not have vascular tissue They form spores Their sporophyte is dependent upon gametophyte They do not have roots Explanation:In bryophytes, the sporophyte is physically and nutritionally dependent on the gametophyte. This is a distinctive characteristic that sets them apart from other plant groups where the sporophyte is typically independent. 21. The rhizoids of Funaria are : Green coloured Unicellular Multicellular with oblique septa Unicellular with septa Explanation:Funaria rhizoids are multicellular and have oblique septa, which provide structural support and help in anchoring the plant to the substrate. 22. In moss, calyptra is formed from: Venter wall Columella Antheridium Capsule Explanation:The calyptra in mosses is formed from the venter wall of the archegonium. It encloses and protects the young sporophyte during its development. 23. In moss, peristomial teeth are: 16+32 16+16) 8+8 16+8 Explanation:The peristome of mosses typically consists of 16 pairs of teeth, making a total of 32. These teeth aid in the dispersal of spores by responding to humidity changes. 24. The cortex cells of the young ‘stem’ or axis of Funaria are : Collenchymatous Chlorenchymatous Sclerenchymatous Parenchymatous Explanation:The cortex cells of the young stem of Funaria are parenchymatous, which are basic plant cells that play a role in photosynthesis, storage, and tissue repair. 25. The antherozoids of Funaria are : Monoflagellated Non-flagellated Multiflagellated Biflagellated Explanation:The antherozoids (sperm cells) of Funaria are biflagellated, meaning they have two flagella that aid in their movement towards the egg for fertilization. 26. Which part of Riccia bears nurse cells? Sporogonium Antheridium Storage region (thallus) Egg cell Explanation:In Riccia, nurse cells are found in the sporogonium, where they provide nutrients to developing spores. 27. The columella of moss is the region of moss capsule : Reproductive Sterile Sterile or fertile Fertile Explanation:The columella in moss capsules is a sterile structure that supports the spore-producing tissues and aids in spore dispersal. 28. The tallest moss in the world is : Pogonatum Funaria Dawsonia Buxbaumia Explanation:Dawsonia is the tallest moss in the world, capable of growing up to 50 cm in height, which is significantly taller than most other moss species. 29. Funaria is : Dioecious Monoecious Anacrogynous Apocarpous Explanation:Funaria is classified as monoecious because it has both male and female reproductive organs on the same plant. This allows for self-fertilization, which is a common characteristic of many mosses. 30. The protonema which is not formed from spores is known as : Primary protonema Apophysis Paraphysis Secondary protonema Explanation:A secondary protonema is formed from parts of the gametophyte other than spores, often as a result of vegetative reproduction. 31. The central part of Funaria axis is : A type of conducting tissue True vascular tissue Hollow Filled with pith Explanation:The central part of the Funaria axis contains a type of conducting tissue that helps in the transport of water and nutrients, although it is not true vascular tissue like that found in higher plants. 32. In moss, reduction division occurs in : Archegonia Capsule In antheridia and archegonia both Antheridia Explanation:Reduction division (meiosis) in moss occurs in the capsule, where spores are produced, reducing the chromosome number by half. 33. The chief characteristic of bryophyta is that : Their sporophytic generation is dependent on gametophytic generation Their gametophytic generation is dependent on sporophytic generation None of the above given is true Sporophytic generation is fully independent Explanation:In bryophytes, the sporophyte is dependent on the gametophyte for nutrition and support. This is a key characteristic distinguishing bryophytes from other plant groups where the sporophyte is typically independent. 34. Ancestors of Bryophyta were some aquatic plants is clear from the fact that : Protonema is like an algal filament They are green Some species are aquatic even now They have ciliated sperms Explanation:The presence of ciliated sperms in bryophytes suggests an aquatic ancestry, as cilia are typically used for movement in water. 35. The middle sterile part of capsule is called: Columella Protonema Foot Spore sac Explanation:The columella is the central sterile tissue within the capsule of Funaria, which helps in the structural integrity and spore dispersal mechanism. 36. The sporophyte of Riccia is represented by : A spherical capsule only Foot, seta and capsule Spores and elaters Foot and capsule Explanation:The sporophyte of Riccia is represented by a spherical capsule, which contains the spores for reproduction. 37. The leaves of Funaria are : With very few stomata Green but without stomata None of the above With numerous stomata Explanation:The leaves of Funaria are green and lack stomata, which is typical of many bryophytes. They rely on their entire surface for gas exchange. 38. The gametophyte of moss has distinct phases : Three Two One Four Explanation:The gametophyte of moss has two distinct phases: the protonema, which is the initial filamentous stage, and the leafy gametophore, which bears the reproductive organs. 39. In bryophytes and pteridophytes, transport male gametes requires: Insects Wind Water Birds Explanation:Both bryophytes and pteridophytes rely on water to transport male gametes (sperm) to the female gametes (eggs). This is because their sperm are flagellated and require a film of water to swim through. 40. In moss, conducting tissue is made up of Sclerenchyma Elongated parenchymatous cells Xylem and phloem Xylem Explanation:In mosses, the conducting tissue is made up of elongated parenchymatous cells, which help in the transport of water and nutrients. 41. Which is a gametophytic tissue? Apophysis Peristome Calyptra Operculum Explanation:The calyptra is a protective cap of gametophytic tissue that covers the capsule in mosses. It is derived from the archegonium and protects the developing sporophyte. 42. In moss, sporogenous tissue arises from: Inner endothecium Outer endothecium Total amphithecium Total endothecium Explanation:The sporogenous tissue in mosses arises from the inner layer of the endothecium. This tissue is responsible for the production of spores. 43. Which plays an important role in the dispersal of spores in Funaria? Capsule Operculum Sporogonium Peristome and annulus Explanation:The peristome and annulus play crucial roles in the dispersal of spores in Funaria by controlling the release of spores from the capsule. 44. Funaria can be differentiated from Cycas : Funaria does not have spores Funaria has antheridia and archegonia None of the above Funaria does not have ovules Explanation:Funaria can be differentiated from Cycas because it does not have ovules, which are present in Cycas as part of its seed-producing reproductive system. 45. Development of sporophyte from gametophyte without sexual reproduction is called : Amphimixis Apogamy Parthenogenesis Apospory Explanation:Apogamy is the development of a sporophyte from a gametophyte without sexual reproduction, bypassing the need for fertilization. 46. Funaria is a Bryophyta because : It lacks seeds It lacks vascular tissue All of the above It has multicellular and jacketed sex organs Explanation:Funaria is classified as a Bryophyta because it lacks vascular tissue, lacks seeds, and has multicellular, jacketed sex organs, all characteristic features of bryophytes. 47. The gametophyte produced by apospory is : Diploid Haploid Triploid Parthenogenetic Explanation:The gametophyte produced by apospory is diploid because it arises from the sporophyte tissue, which is diploid, rather than from haploid spores. 48. If moss protonema is formed from capsule cells it will be : Diploid Haploid Polyploid Triploid Explanation:If a moss protonema is formed from capsule cells, it will be diploid because the capsule is part of the sporophyte, which is diploid. 49. The teeth of peristome of Funaria are : Hygroscopic Sensitive Sensitive and hydrophobic Hydrophobic Explanation:The peristome teeth of Funaria are hygroscopic, meaning they respond to changes in humidity, which helps in the gradual release of spores. 50. To which class Riccia belongs : Hepaticopsida Sphenopsida Pteropsida Bryopsida Explanation:Riccia belongs to the class Hepaticopsida, which includes liverworts, a group of non-vascular plants. 51. How is moss different from fern? In ciliated sperms In alternation of generations Independent gametophyte Dependent sporophyte Explanation:Mosses differ from ferns in having a dependent sporophyte that relies on the gametophyte for nutrition, whereas ferns have an independent sporophyte. 52. In moss, sporophyte is formed on: Archegoniophore Antheridiophore Carpophore Gynophore Explanation:In mosses, the sporophyte develops from the fertilized egg within the archegonium, which is situated on the archegoniophore. This structure supports the female reproductive organs. 53. The sporophyte of Riccia is : Total parasite Photoautotrophic Saprophytic Semiparasite Explanation:The sporophyte of Riccia is a total parasite, relying entirely on the gametophyte for nutrition and support. 54. The spores of Funaria on germination give rise to : Primary protonema Protonema None of the above Secondary protonema Explanation:The spores of Funaria germinate to form a primary protonema, which is the initial stage of the gametophyte generation. 55. Sporophyte of Funaria is : Autotrophic Parasitic Semiparasitic Saprophytic Explanation:The sporophyte of Funaria is semiparasitic because it relies on the gametophyte for nutrition but can also perform some photosynthesis. 56. Spores of which plants have chloroplast: Funaria Rhizopus Yeast Aspergillus Explanation:Spores of Funaria, a type of moss, contain chloroplasts which allow them to photosynthesize. This is not a common feature in spores of fungi like Rhizopus or Aspergillus. 57. The upper region of moss capsule is : Specialized for spore dispersal A non-specialized structure Only an ornamental structure Simple structure Explanation:The upper region of the moss capsule is specialized for spore dispersal, often containing mechanisms like peristome teeth to aid in the release of spores. Loading …