Question FBQ1 : Algae exhibit great diversity in size and____________ Answer: Appearance Question FBQ2 : The size of algae ranges from simple microscopic to _________ thallusextending several metres in length as in kelps. Answer: Giant Question FBQ3 : Algae are widely distributed in nature whenever there is plenty of water and_______________. Answer: Sunshine Question FBQ4 : Algae also occur abundantly on wet rocks, wet ground and a pool of ______________ Answer: Water Question FBQ5 : Some algae have a prostrate system attached to the --------------and anerect system of vertical branches. Answer: Substratum Question FBQ6 : Morphologically Algae can be distinguished as unicellular, polysiphonoid, filamentous, hetertrichous, thalloid and ____________ forms. Answer: Colonial Question FBQ7 : The ------------------algae are simplest in morphology. Answer: Unicellular Question FBQ8 : The -------------of a colony may communicate through plasmodesmata. Answer: Cells Question FBQ9 : Thalloid forms of algae are sheet like, polysiphonoid forms are more _____________ Answer: Complex Question FBQ10 : ------------------means grouping of organisms according to the similarity in their characters. Answer: Classification Question FBQ11 : Algae could be classified according to their common characters into _______divisions of’ Kingdom Protista Answer: 8 Question FBQ12 : Algae are classified as -------------instead of plants Answer: Protists Question FBQ13 : Algae have been grouped into two major types: prokaryotes and _________ Answer: Eukaryotes Question FBQ14 : Eukaryotic algae can be classified into _______divisions each sharing a large number of common characters. Answer: 9 Question FBQ15 : All photosynthetic algae have ______________ Answer: Chlorophyll Question FBQ16 : ______________algae (Division Chlorophyta) are unicellular, colonial and filamentous in forms, motile and free floating Answer: Green Question FBQ17 : The __________pigments are chlorophyll a, b, β-carotene and xanthophylls Answer: Photosynthetic Question FBQ18 : ---------------------contain chlorophyll a and b, but they are different from green algae. Answer: Euglenoids Question FBQ19 : -------------algae (Division Phaeophyta) are mostly marine, large, complex usually multicellular and non-motile. Answer: Brown Question FBQ20 : ______________algae (Division Rhodophyta) are marine, multicellular and filamentous Answer: Red Question FBQ21 : Members of Xanthophyta, Chrysophyta, Dinophyta and Cryptophyta are mostly unicellular. True or False? Answer: True Question FBQ22 : Algae vary in size from small microscopic unicellular forms like chlamydomonas to large macroscopic multicellular forms like Polysiphonia. True or False? Answer: True Question FBQ23 : Algae show all the three types of reproduction vegetative, asexual and sexual. True or False? Answer: True Question FBQ24 : Asexual methods on the other hand involve production of new type of cells, called zoospores. True or False? Answer: True Question FBQ25 : In sexual reproduction gametes are formed. They fuse in pairs to form zygote. True or False? Answer: True Question FBQ26 : Zygote may divide and produce a new thallus or it may secrete a thick wall to form a zygospore. True or False? Answer: True Question FBQ27 : When both the gametes are of the same size and morphology are called --------------- Answer: Isogamy Question FBQ28 : ___________: is when two gametes are distinctly different in size or shape, the larger of the two is minus (female) type. Answer: Anisogamy Question FBQ29 : ____________ gametes are flagellated and highly motile Answer: Male Question FBQ30 : ___________gamete, egg or ovum is big in size and has no flagella hence it is non-motile. Answer: Female Question FBQ31 : The male gametes are attracted by the female cells because of special hormones called _____________ Answer: Gamones Question FBQ32 : In algae, when a cell divides and the daughter cells formed remain together within a common mucilage mass it is known as______ Answer: Colony Question FBQ33 : Meristematic tissues are present in: Answer: Anthoceros Question FBQ34 : The body of an algae is called ------- Answer: thallus Question FBQ35 : The yellow-green algae belong to the division --------------- Answer: xanthophyta Question MCQ1 : Some cells in between the vegetative cells are modified into________ Answer: heterocysts Question MCQ2 : When some cells of a filament divide vertically it results in a__________ Answer: branch Question MCQ3 : When a cell divides and the daughter cells formed remain together within a common mucilage mass, it is known as____________ Answer: a colony Question MCQ4 : A small contractile vacuole is found at the base of each__________ Answer: Flagellum Question MCQ5 : Algal morphology varies from simple unicellular form to_____________ Answer: complex thallus Question MCQ6 : Heterotrichous habit is the most highly developed filamentous construction in __________ Answer: Algae Question MCQ7 : Phytophthora fungus belongs to the Division of________ Answer: Oomycota Question MCQ8 : Phytophthora infestans causes a serious potato disease called_________ Answer: potato blight Question MCQ9 : The mature sporangia can easily be separated from the_______________ Answer: sporangiophore Question MCQ10 : _______is a heterotrichous alga which shows greater differentiation in plant body. Answer: Draparnaldiopsis Question MCQ11 : _______is another heterotrichous alga Answer: Ectocarpus Question MCQ12 : The thallus may be one cell or many cells in___________ Answer: thickness Question MCQ13 : ___________is a very common algae found on rocky coasts of sea Answer: Ulva Question MCQ14 : Most fungi are microscopic, which among the following grow very large? Answer: morels Question MCQ15 : Yeast is found on the sticky sugary surface of ______ fruit Answer: Ripe Question MCQ16 : The cell wall of yeast has ________ made of chitin and polysaccharides - glucan and mannans. Answer: 2-3 layers Question MCQ17 : Phytophthora fungus belongs to the Division of________ Answer: Oomycota Question MCQ18 : When the sporangia fall on the leaf of a host plant they____________ Answer: germinate Question MCQ19 : ln the life cycle of Phytophthora there is an/a _____________ cycle which may repeat during favourable conditions Answer: asexual Question MCQ20 : The male gametangia is called____________ Answer: antheridia Question MCQ21 : The bryophytes are homosporous, this means__________ Answer: spores of any given species are all alike Question MCQ22 : Bryophytes lack __________ Answer: vascular system Question MCQ23 : There are strong reasons to believe that green algae served as ancestors of ________ Answer: bryophytes Question MCQ24 : Identify the advantage of the terrestrial habitat over the aquatic Answer: greater availability of sunlight for photosynthesis Question MCQ25 : Plants on land are exposed to direct sunlight and air. Hence, there is danger of__________ Answer: drying out Question MCQ26 : The female gametangia is called__________ Answer: archegonia Question MCQ27 : Under normal circumstances, gametophyte produces motile male gametes known as____________ Answer: sperms Question MCQ28 : Pteridophytes exhibit a great variation in form, size and ____________ Answer: structure Question MCQ29 : The spores are produced in special structures called the ___________ Answer: sporangia Question MCQ30 : Algal morphology varies from simple unicellular form to_____________ Answer: complex thallus Question MCQ31 : One who specialises in the study of algae is called _________ Answer: Algologist Question MCQ32 : When a cell divides and the daughter cells formed remain together within a common mucilage mass, it is known as ___________ Answer: a colony Question MCQ33 : The two daughter cells get separated, rarely they remain together to form a -------------- Answer: 2-celled filament Question MCQ34 : Which one is an example of red algae? Answer: Polysiplonia Question MCQ35 : The principal photosynthetic pigments for brown algae are _________ Answer: all of the options