A bryophyte differs from pteridophytes in having
archegonia.
lack of vascular tissue.
swimming antherozoids.
independent gametophytes.
Correct Answer :
B. lack of vascular tissue.
Bryophytes completely lack vascular tissue system and absorb water by generally body surface. Whereas pteridophytes are the first terrestrial plants to possess vascular tissues -xylem and phloem.
Related Questions
Deep in the tropical rain forest, a botanist discovered an unusual plant with vascular tissues, stomata, a cuticle, flagellated sperm, conelike reproductive structures bearing seeds, and an alternation-of-generations life cycle. He was very excited about this discovery because it would be rather unusual for a plant to have both
a cuticle and flagellated sperm.
vascular tissues and alternation of generations.
seeds and flagellated sperm.
alternation of generations and seeds.
Match the classes of pteridophytes given in column I with their examples given in column II and choose the correct option
| Column -I | Column-II |
|---|---|
| (Classes of pteridophytes) | (Examples) |
| A. Psilopsida | I. Selaginella |
| B. Lycopsida | II. Psilotum |
| C. Sphenopsida | III. Dryopteris |
| D. Pteropsida | IV. Equisetum |
A II; B I; C IV; D III
A I; B II; C IV; D III
A II; B I; C III; D IV
A II; B IV; C I; D III
A universal feature of the life cycle of plants is
morphologically identical haploid and diploid stages.
genetically identical haploid and diploid stages.
alteration of generations between heteromorphic haploid gametophytes and diploid sporophytes.
none of the above
Which of the following statement(s) is/are correct ?
In angiosperms, each embryo sac has a three-celled egg apparatus one egg cell and two synergids, three antipodal cells and two polar nuclei.
All seed bearing plants i.e., gymnosperms and angiosperms follow dipontic life patterns of plants.
In gymosperms, roots in some genera have fungal association in the form of mycorrhiza (Pinus) while in some others (Cycas) small specialized roots called coralloid are associated with N2 fixing cyanobacteria.
All of the above
Match column-I with column-II and choose the correct option.
| Column-I | Column-II |
|---|---|
| A. Phaeophyceae | I. Have an elaborate mechanism of spore dispersal |
| B. Rhodophyceae | II. first terrestrial plant with vascular tissue-phloem and xylem |
| C. Mosses | III. Asexual reproduction by biflagellate zoosposes |
| D. Pteridophytes | IV. Polysiphonia, Porphyra, Gracilaria |
A III; B IV; C I; D II
A IV; B III; C I; D II
A IV; B III; C II; D I
A IV; B I; C III; D II
In class phaeophyceae, the plant body is usually attached to the substratum by a A and has a stalk, the B and leaf like photosynthetic organ-the C .
A holdfast, B stipe, C frond
A stipe, B holdfast, C frond
A frond, B stipe, C holdfast
A stipe, B frond, C holdfast
Which of the following statement is incorrect ?
Double fertilization is unique to gymnosperms and monocotyledons.
Sequoia, a gymnosperm, is one of the tallest tree species.
Phaeophyceae members possess chlorophyll a, c, carotenoids and xanthophylls.
Moss is a gametophyte which consists of two stages namely, protonemal stage and leafy stage.
Which one of the following is the major difference between mosses and ferns ?
Ferns lack alternation of generation while mosses show the same.
Mosses are facultative aerobes while ferns are obligate aerobes.
Vascular bundles of ferns show xylem vessels while those of mosses lack it.
Sporophytes of ferns live much longer as compared to the sporophytes of mosses.
Which of the following class of algae is rarely found in fresh water ?
Chlorophyceae
Phaeophyceae
Rhodophyceae
Both (a) and (b)
Place the following groups of plants in order, beginning with those that first appeared on the earth and progressing toward those that appeared most recently in time.
Gymnosperms, angiosperms, ferns, moss, algae
Algae, moss, ferns, gymnosperms, angiosperms
Moss, algae, ferns, angiosperms, gymnosperms
Algae, ferns, angiosperms, gymnosperms, moss
Which of the following pteridophytes belong to class pteropsida?
Equisetum and Psilotum
Lycopodium and Adiantum
Selaginella and Pteris
Pteris and Adiantum
Refer the following statement(s) and identify the group of plant which is being described by given statements ?
(i) They include various mosses and liverworts that are found commonly growing in moist shaded areas in the hills.
(ii) They lack true roots, stem or leaves.
(iii) The main plant body is haploid.
(iv) They produce a multicellular body sporophyte which is not free living but attached to the photosynthetic gametophyte and derives nourishment from it.
Algae
Fungi
Bryophytes
Pteridophytes
Which of the following statement(s) is/are correct about gemmae ?
(i) These are specialised structures by which asexual reproduction take place in liverworts.
(ii) They are green, multicellular and asexual buds.
(iii) They develop in small receptacles called gemma cups.
(iv) They detach from parent body and germinate to form new individuals.
(i) and (ii)
(ii) and (iii)
(i), (ii) and (iii)
All of these
What is the number and position of insertions of flagella in rhodopyceae class of algae ?
2 - 8, equal, apical
2, unequal, lateral
2 - 6, equal, lateral
Absent
What is the similarity between gymnosperms and angiosperms?
Phloem of both have companian cells.
Endosperm is formed before fertilization in both.
Origin of ovule and seed is similar in both.
Both have leaves, stem and roots.
Which of the following statement(s) is/are correct about angiosperms ?
(i) In angiosperms or flowering plants, the pollen grains and ovules are developed in specialised structure called flowers.
(ii) They are divided into two classes : the dicotyledons and the monocotyledons.
(iii) The male sex organ in a flower is the pistil or the carpel.
(iv) The female sex organ is the stamen.
Only (i)
Both (i) and (ii)
Both (ii) and (iv)
All of these
You are given an unknown plant to study in the laboratory. You find that it has chlorophyll, no xylem. Its multicellullar sex organs are enclosed in a layer of jacket cells. Its gametophyte stage is free living. The plant probabily belongs to
chlorophyceae
bryophyte
pteridophyte
gymnosperm
Mosses are of great ecological importance because of
its contribution to prevent soil erosion.
its contribution in ecological succession.
its capability to remove CO from the atmosphere.
both (a) and (b)
Match column-I with column-II and choose the correct option.
| Column-I | Column-II |
|---|---|
| A. Agar | I. Single cell protein, used as food supplements by space travellers |
| B. Algin | II. Red algae |
| C. Carrageen | III. Brown algae |
| D. Chlorella | IV. Gelidium, Gracilaria Spirullina |
A I; B II; C III; D IV
A IV; B III; C II; D I
A II; B I; C III; D IV
A III; B II; C I; D IV
_______ represent the reproductive organs amongst gymnosperms.
Prothallus
Capsules
Setae
Cones
Bryophytes are different from fungi in having
land habit.
sterile jacket layers.
multiflagellate gametes.
gametophytic plant body.
What is common in all the three, Funaria, Dryopteris and Ginkgo?
Independent sporophyte
Presence of archegonia
Well developed vascular tissues
Independent gametophyte
Which of the following statement(s) is/are correct?
(i) Green algae are the members of chlorophyceae.
(ii) Brown algae are found primarily in marine habitates
(iii) Some red algae are found in fresh water, mostly occur in salt water, some are in brackish water.
(iv) The food in red algae is stosed as floridean starch.
(v) Red alga may occur in both well-lighted regions close to water-surface and also at great depths in oceans where light penetration is little.
(i) and (v) only
(ii), (iii) and (iv) only
All of the above
None of the above
Angiosperms have dominated the land flora primarily because of their
power of adaptability in diverse habitat.
property of producing large number of seeds.
nature of self pollination.
domestication of man.
A student was given a sample to observe under the microscope. He observed and found that the sample is the most common type of spore involved in asexual reproduction in algae. Identify the spore.
Zoospore
Endospore
Hypnospore
None of the above
Pyrenoids in green algal cells are related to
starch formation
protein storage
general metabolism
enzyme secretion
In order to colonize land, plants needed to acquire which of the following characteristics?
A mechanism for moving water throughout the plant.
A mechanism to prevent desiccation of tissues.
An ability to screen ultraviolet radiation.
Both (b) and (c)
Which of the following, examples belongs to the same class of algae?
Chara, Fucus, Polysiphonia
Volvox, Spirogyra, Chlamydomonas
Porphyra, Ectocarpus, Ulothrix
Sargassum, Laminaria, Gracilaria
The spreading of living pteridophytes is limited and restricted to narrow geographical region because
gametophytic growth needs cool, damp and shady places.
it requires water for fertilization.
due to absence of stomata in leaf and absence of vascular tissue.
both (a) and (b)
A bryophyte differs from pteridophytes in having
archegonia.
lack of vascular tissue.
swimming antherozoids.
independent gametophytes.