Chapter 3

Who suggested the five kingdom of classifications? (a) Robert Hooke (b) Joseph Dalton Hooker (c) Carolus Linnaeus (d) Whittaker

Artificial systems gave equal weightage to (a) Morphological and anatomical characters (b) Vegetative and sexual characters (c) Vegetative and anatomical characters (d) Morphological and sexual characters

Natural classification system developed were (a) Natural affinities amongst organism (b) Ultra structure and anatomy (c) Embryology (d) All of these

The classification based on evolutionary history was (a) Phylogenetic classification (b) Artificial classification (c) Numerical classification (d) None of these

Chemotaxonomy is based on (a) Information of chromosome number, structure and behaviour. (b) Chemical constituents of plants (c) All observable characters (b) Only sexual characters

According to phylogenetic classification the organisms belonging to same taxa (a) Are same in anatomy (b) Have same genetic constituent (c) Have a common ancestor (d) Have all same characteristics

The characters used to classify organism when no fossil evidence is supportive is (a) Numerical taxonomy (b) Cytotaxonomy (c) Chemotaxonomy (d) All of these

Chlorophyll bearing, thalloid, simply, autotropic and mainly aquatic organisms are (a) Bryophytes (b) Protist (c) Algae (d) All of these

Filamentous forms of algae are (a) Ulothrix (b) Spirogyra (c) Chlamydomonas (d) Both (a) and (b)

Volvox is a (a) Unicellular algae (b) Filamentous algae (c) Colonial algae (d) Symbiotic algae

The modes of reproduction found in algae are (a) Vegetative (b) Asexual (c) Sexual (d) All of these

Vegetative reproduction in algae is by (a) Binary fusion (b) Fragmentation (c) Budding (d) Cyst formation

Spore formation in algae occur during (a) Vegetative reproduction (b) Asexual reproduction (c) Sexual reproduction (d) During germination

Isogamy is seen in (a) Chlamydomonas (b) Spirogyra (c) Both (a) and (b) (d) None of these

Algae possesing both isogamy and anisogamy is (a) Chlamydomonas (b) Volvox (c) Spirogyra (d) Fucus

Male gamete is small and motile and female gamete is large and immotile in (a) Fucus (b) Spirogyra (c) Ulothrix (d) All of these

50 per cent \(\mathrm{CO}_{2}\) fixation on earth is carried out by (a) Protist (b) Higher plants (c) Algae (d) None of these

Marine algae used as food are (a) Laminaria (b) Sargassum (c) Porphyra (d) All of these

Hydrocolloids are secreted by (a) All of the algae (b) Only brown algae (c) Only red algae (d) Both red and brown algae

Algin is secreted by (a) All of the algae (b) Only brown algae (c) Only red algae (d) Both red and brown algae

Carrageen is secreted by (a) All of the algae (b) Only brown algae (c) Only red algae (d) Both red and brown algae

Microbes used in the preparation of ice cream and jellies are grown on the product secreted by (a) Chlorella (b) Spirullina (c) Gelidium and gracilaria (d) All of these

The algae rich in proteins and used as food by space travellers is (a) Chlorella (b) Spirullina (c) Both (a) and (b) (d) Laminaria

Agar is commercially obtained from (a) Gelidium and gracilaria (b) Laminaria and spirulina (c) Chlorella and spirullina (d) Chlamydomonas and spirogyra

Green algae are kept in (a) Phaeophyceae (b) Xanthophylls (c) Xhlorophyceae (d) Rhodophyceae

The organism which contain chlorophyll 'a'and 'b' cup-shaped chloroplast and is unicellular is (a) Spirogyra (b) Chlamydomonas (c) Volvox (d) Ulothrix

Dominance of chlorophyll 'a' and 'b', pyrenoids and starch as stored food are found in (a) Members of chlorophyceae (b) Members of rhodophyceae (c) Members of phaeophyceae (d) All of these

Chlorophyceae are grass green due to the dominance of pigment (a) Chlorophyll \(\mathrm{a}, \mathrm{c}\) (b) Chlorophyll \(\mathrm{b}, \mathrm{a}\) (c) Chlorophyll d, c (d) All of these

Pyrenoids are located in (a) Cytoplasm (b) Mitochondria (c) Chloroplast (d) Nucleus

Pyrenoids store (a) Protein (b) Starch (c) Lipids (d) Both (a) and (b)

Cell wall of green algae is made up of (a) Cellulose and pectose (b) Cellulose and pectin (c) Inner layer of pectose and outer layer of cellulose (d) Inner layer of cellulose and outer layer of pectose

Zoospores are formed during asexual reproduction of algae and formed in (a) Sporangia (b) Zoosporangia (c) Microsporangia (d) Megasporangia

Sexual reproduction is of isogamous, anisogamous and oogamous in (a) Chlorophyceae (b) Rhodophyceae (c) Chlorophyceae and Phaeophyceae (d) Chlorophyceae and Rhodophyceae

Algae which are primarily marine is (a) Red algae (b) Brown algae (c) Green algae (d) All of these

Filamentous brown algae is (a) Spirogyra (b) Laminaria (c) Ectocarpus (d) Porphyra

Green algae performs oogamous type sexual reproduction (a) Sphagnum (b) Volvox (c) Dictyota (d) Spirogyra

Kelps represent the group of (a) Bryophytes (b) Red algae (c) Green algae (d) Brown algae

Kelps may reach a height up to (a) \(120 \mathrm{~m}\) (b) \(100 \mathrm{~m}\) (c) \(1000 \mathrm{~m}\) (d) \(10 \mathrm{~m}\)

The algae which possess chlorophyll \(\mathrm{a}, \mathrm{c}\), carotenoids and xanthophylls belong to (a) Green algae (b) Brown algae (c) Both (a) and (b) (d) None of these

Brown algae vary in colour from \(\quad\) to various shades of depending on the amount of \(\quad\) pigment and \(\quad\) present in them (a) fucoxanthin, xanthophyll, blue, brown (b) blue, brown, fucoxanthin, xanthophyll (c) yellow, brown, fucoxanthin, xanthophyll (d) olive green, brown, fucoxanthin, xanthophyll

Laminaria and mannitol are stored foods of (a) Euglena (b) Green algae (c) Liverworts (d) Brown algae

The plant body of algae is divided in holdfast, stipe and fronds in (a) Chara (b) Laminaria (c) Porphyra (d) All of these

The plant body attached to substratum in brown algae is by (a) Rhizoids (b) Multicellular hair (c) Holdfast (d) Roots

The photosynthetic leaf like organ found in some of the algae are called (a) Sporophyll (b) Fronds (c) Leaves (d) Scaly leaves

Zoospores of brown algae are (a) Uniflagellate (b) Multiflagellate (c) Biflagellate (d) May be any of the above three

The arrangement of flagella in brown algae is (a) One and equally arranged (b) Two unequal and laterally arranged (c) Many flagella arranged anywhere on the body (d) Depends from organism to organism

The biflagellate pear-shaped zoospores are characteristics of (a) Red algae (b) Green algae (c) Brown algae (d) All of these

Fertilization in brown algae occurs in (a) Water (b) Within the oogonia (c) Both (a) and (b) (d) None of these

Sexual reproduction shown by members of brown algae is (a) Isogamous (b) Anisogamous (c) Oogamous (d) All of these

Pyriform gametes means (a) Pea-shaped gametes (b) Pear shaped gametes (c) Gametes with one flagella (d) All of these