Chapter 3

Dictyota belongs to (a) Bryophytes (b) Green algae (c) Brown algae (d) None of these

Red algae are red due to the presence of pigment (a) Phycoerythrin (b) r-phycocyanin (c) r-phycoerythrin (d) r-phepocyamin

Red algae are found in (a) Cold seas (b) Seas with moderate temperature (c) Warm water (d) None of these

Algae found in the areas where no light penetrates is (a) Green algae (b) Dinoflagellates (c) Red algae (d) Brown algae

Algae found in areas with abundant light as well as areas of great depths with no light is (a) Red algae (b) Green algae (c) Blue algae (d) Brown algae

Red algae are mostly (a) Unicellular (b) Multicellular (c) May be multicellular and unicellular (d) None of these

Floridean starch is stored food found in (a) Some protist (b) Some bryophytes (c) Some algae (d) Prokaryotes

Floridean starch is similar to (a) Amylopectin (b) Glycogen (c) Fructose (d) Both (a) and (b)

The spores and gametes of red algae are (a) Motile and non-motile (b) Both are motile (c) Both non-motile (d) Motile spores and non-motile gamete

Sexual reproduction of oogamous type is found in (a) Red algae (b) Green algae (c) Brown algae (d) All of these

The most reduced type of sexual reproduction is found in the members of (a) Red algae (b) Green algae (c) Brown algae (d) All of these

reproduction is shown by the members of rhodophyceae. (a) Oogamous (b) Isogamous (c) Anisogamous (d) All of these

Fronds are found in which of the following algae? I. Laminaria II. Fucus III. Dictyota IV. Porphyra (a) I, II, and III (b) I and II (c) II and III (d) All of these

Air bladders are shown by (a) Fucus (b) Laminaria (c) Dictyota (d) All of these

How many of the following algae belong to the category of red algae? Polysiphonia, Gelidium, Laminaria, Spirogyra, Porphyra, Fucus, Chlamydomonas (a) 2 (b) 3 (c) 4 (d) 5

Members of phaeophyceae are (a) Ectocarpus, dictyota, fucus and sargassum (b) Ectocarpus, dictyota, fucus and porphyra (c) Chlamydomonas, volvox, ulothrix (d) Gracilaria and gelidium

Polysulphate esters are present in the cell wall of (a) Ectocarpus and dictyota (b) Gelidium and gracilaria (c) Ectocarpus and sargassum (d) Spirogyra and chara

Pear-shaped gametes are found in (a) Ectocarpus, dictyota and fucus (b) Ulothrix, spirogyra, and ectocarpus (c) Ectocarpus, gelidium and gracilaria (d) None of these

The complex post-fertilization events are seen in (a) Chlorella and spirullina (b) Gracilaria and porphyra (c) Volvox and ulothrix (d) All of these

Organisms referred to as amphibians of plant kingdom are (a) Pteridophytes (b) Bryophytes (c) Angiosperms (d) Gymnosperms

Bryophytes are found in (a) Rocky places (b) Hilly areas (c) Moist and shady places (d) Aquatic areas

Organisms that play an important role in plant succession on base rocks are (a) Mosses (b) Pteridophytes (c) Protist (d) None of these

Bryophytes requires for fertilization (a) Nutrients (b) Water (c) Both (a) and (b) (d) None of these

Which of the following statement is incorrect with respect to bryophytes? (a) The plant body is thallus like, more differentiated than algae and attached to substratum by the help of rhizoids. (b) The antherozoids are released in water for fertilization. (c) Zygote formed undergoes meiotic cell division immediately. (d) They have leaf like, stem like and root like structures.

The sporophyte of bryophytes develops after (a) Reduction division of zygote (b) Multiplication in zygote (c) Before the formation of zygote (d) None of these

Sporophyte of bryophytes is I. Multicellular body II. Parasite on gametophyte III. Partially undergoes reduction division to form spores IV. Derives the water from gametophytes (a) II and III (b) III and IV (c) Only I (d) All of these

forms gametophyte of bryophytes. (a) Zygote (b) Sporophyte (c) Gametes (d) Spores

The organism having more differentiated plant body than algae is (a) Protist (b) Mosses (c) Monera (d) None of these

The gametophyte possessing leaf like, root like and stem like structure is (a) Gymnosperm (b) Chlorophyceae (c) Slime molds (d) Mosses

The male sex organ of bryophyte is called (a) Antherozoids (b) Testes (c) Globule (d) None of these

The sex organ in bryophytes are (a) Reduced to single celled stage (b) Multicellular (c) Net cell developed (d) Formed in sporophyte stage

The main plant body of bryophyte is (a) Haploid (b) Diploid (c) Polyploid (d) All of these

Female sex organ of bryophytes is (a) Oval in shape (b) Irregular (c) Flask shaped (d) Depends on the organism

Female sex organ of bryophyte is called (a) Nucleus (b) Ovary (c) Oogonia (d) Archegonium

Archegonium contains egg cells in bryophytes (a) More than one (b) Two (c) Four (d) One

Division in zygote results in the formation of in bryophytes (a) Gametophyte (b) Sporophyte (c) Antherozoids (d) Archegonium

Gametophyte of bryophyte is (a) Free living and sporophyte (b) Free living and autotrophic (c) May be free living or autotropic (d) Always pressure

Peat used in transshipment is a product obtained by (a) Liverworts (b) Phaeophyceae (c) Mosses (d) None of these

Organisms which first colonizes the base rocks is (a) Mosses (b) Mycorrhiza (c) Lichens (d) Both (a) and (c)

Mosses are ecologically important because I. The first organism to colonize base rocks. II. It decompose rocks making suitable for the growth of higher plant. III. It forms dense mats on soil. IV. It reduces the impact of falling rain and soil erosion. (a) Only I (b) Only II (c) III and IV (d) All of these

Peat which is long used as fuel is a product obtained from (a) Gelidium (b) Species of sphagnum (c) All mosses (d) All liverworts

Organisms participating as pioneers in ecological succession belongs to (a) Lichens (b) Mosses (c) Liverworts (d) Both (a) and (b)

Liverworts are found in (a) Moist shady places (b) Banks of steams, marshy ground (c) Damp soil, bard of trees and deep in the woods (d) All of the above

The thallus of liverworts are (a) Sexual multiplication of the formation of sex organs called gemmae. (b) Dorsiventral and appressed to substrate. (c) Found in xeric habitats. (d) Diploid

Asexual reproduction in liverworts means (a) Fragmentation of thalli (b) Formation of specialized structure called gemmae (c) Both (a) and (b) (d) None of these

Gemmae in liverworts are formed during (a) Sexual reproduction (b) Asexual reproduction (c) Spore formation (d) Adverse conduction

Marchantia is (a) An algae (b) Gymnosperm (c) Fern (d) Bryophyte

Sexual reproduction in liverworts takes place by (a) Formation of sex organs always on the same thallus. (b) Formation of male and female sex organs on different thallus. (c) Sexual reproduction is absent. (d) Male and female sex organs may be present on same or different thalli.

The sporophyte in liverworts (a) Is the dominant and main phase of the plant body. (b) Is differentiated into foot, seta and capsule. (c) Parasite on the gametophyte (d) Both (b) and (c)

Spore in bryophytes are formed (a) On the gametophyte (b) On the sporophyte (c) In the seta of sporophyte (d) In the capsule of sporophyte