Algae Quiz Questions:
Ques. Fungi differ from algae in being
(a) Coenocytic
(b) Without motile gametes
(c) Without unicellular forms
(d) Without chlorophyll and possessing chitinised wall
Ques. Red oceanic tides can be due to
(a) Diatoms
(b) Red algae
(c) Dinophyceae
(d) Blue-green algae
Ques. The name cyanobacteria refers to
(a) Bacteria
(b) Blue–green algae
(c) Yeast
(d) Fungi
Ques. Which of the following algae is symbiotic and nitrogen fixing?
(a) Spirogyra
(b) Cladophora
(c) Anabaena
(d) Oedogonium
Ques. Unlike other algae, diatoms do not readily decay due to
(a) Siliceous wall
(b) Mucilaginous wall
(c) Water proof cell wall
(d) Nonliving cells
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Ques. During rainy seasons, the ground becomes slippery due to dense growth of
(a) Lichens
(b) Bacteria
(c) Green algae
(d) Cyanobacteria
Ques. Which of the following may be called as fission algae?
(a) Nostoc
(b) Oedogonium
(c) Volvox
(d) None of these
Ques. Which was first photosynthetic organism?
(a) Green algae
(b) Red algae
(c) Cyanobacteria
(d) Brown algae
Ques. The fossil record of blue-green algae is in
(a) Palaeozoic
(b) Pre–palaeozoic
(c) Carboniferous
(d) None of these
Ques. Algae often float on surface of water during day but sink down during night due to
(a) Evolution and trapping of oxygen bubbles during the day in their photosynthesis
(b) Becoming light as they consume most of their food in the night
(c) warming action of sun during the day
(d) Release of absorbed air by warming of water
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Ques. Muramic acid is present in the cell wall of
(a) Yeast
(b) Bacteria
(c) Rhizopus
(d) Green algae
Ques. Which of the following movement may be found in blue-green algae?
(a) Flagellar
(b) Ciliary
(c) Gliding
(d) None of these
Ques. The association of algae and fungi for the formation of lichens is an example of
(a) Parasitism
(b) Mutualism
(c) Amensalism
(d) Predation
Ques. Carrageenin a jelly like substance is derived from marine algae known as
(a) Kelp
(b) Diatoms
(c) Flagellates
(d) Irish moss
Ques. Which of the following does not evolve oxygen?
(a) Photosynthetic bacteria
(b) Blue-green algae
(c) Autotrophic plants
(d) Green algae
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Ques. Helotism is a term used for the symbiosis of
(a) Algae and bacteria
(b) Algae and bryophytes
(c) Algae and pteridophytes
(d) Algae and fungi
Ques. Which of the following shows the absence of chlorophyll ‘b‘?
(a) Green algae
(b) Red algae
(c) Blue-green algae
(d) Brown algae
Ques. The classification of the group algae is based on
(a) Nature of shap
(b) Nature of pigment
(c) Nature of length
(d) None of these
Ques. Blue-green algae are similar to
(a) Bacteria
(b) Viruses
(c) Green algae
(d) Brown algae
Ques. Which of the following does not evolve oxygen?
(a) Green algae
(b) Photosynthetic bacteria
(c) Autotrophic plants
(d) Blue-green algae
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Ques. Prokaryota includes
(a) Mycoplasma
(b) Ulothrix
(c) Fungi
(d) Mycoplasma and blue-green algae
Ques. Microscopic green algae of ocean are called
(a) Spirogyra
(b) Volvox
(c) Diatoms
(d) Ulotrima
Ques. Which of the following groups of plants are highly useful in increasing soil fertility?
(a) Red algae
(b) Fungi
(c) Bacteria
(d) Bryophytes
Ques. Who had pointed out the significance of blue-green algae in relation to nitrogen fixation?
(a) G. E. Fogg
(b) P.K. De
(c) R.N. Bolton
(d) Y. Bharya
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Ques. Mycoplasma is related to
(a) Algae
(b) Bacteriophage
(c) Virus
(d) L–form bacteria
Ques. Algae present in soil fixes atmospheric __
(a) oxygen
(b) nitrogen
(c) carbon-dioxide
(d) helium
Ques. Which of the following decompose the remanents of the plants into CO2 and water?
(a) Algae
(b) Virus
(c) Sunlight
(d) Bacteria
Ques. Who had pointed out the significance of blue-green algae in relation to nitrogen fixation?
(a) G. E. Fogg
(b) P.K. De
(c) R.N. Singh
(d) Y. Bharadwaja
Ques. Mycology (Mycetology) is a branch which deals with the study of
(a) Viruses
(b) Algae
(c) Bacteria
(d) Fungi
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Ques. Alga are useful to man because
(a) They help in restoring the fertility of the soil
(b) They help in reducing pollution and clearing atmosphere
(c) They can be grown in tanks
(d) Of their high protein content, some algae may be used as future food
Ques. Which is the cause of Anthrax disease?
(a) Virus
(b) Bacteria
(c) Mycoplasma
(d) Algae
Ques. Which of the following does not contain chlorophyll?
(a) Fungi
(b) Algae
(c) Bryophyta
(d) Pteridophyta
Ques. In lichens, the following organisms are in symbiotic association:
(a) Algae and fungi
(b) Fungi and bacteria
(c) Algae and bacteria
(d) Algae and protozoa
Ques. Little leaf of brinjal is caused by
(a) Virus
(b) Fungus
(c) Algae
(d) Mycoplasma
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Ques. The alga causing Red snow ball in alpine region is
(a) Batrachospermum
(b) Oscillatoria
(c) Haematococcus
(d) All the above
Ques. In the five kingdom system of classification, which single kingdom out of the following can include blue-green algae, nitrogen fixing bacteria and methanogenic archaebacteria
(a) Monera
(b) Fungi
(c) Plantae
(d) Protista
Ques. a
(a) Coenocytic
(b) Without motile gametes
(c) Without unicellular forms
(d) Without chlorophyll and possessing chitinised wall
Ques. Algae with photosynthetic pigments possess nutrition
(a) Holozoic
(b) Saprophytic
(c) Holophytic
(d) Parasitic
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Ques. The symbiotic association of fungi and algae is called
(a) Lichen
(b) Mycorrhiza
(c) Mycoplasma
(d) Parasitic root
Ques. The disease of cardio-vascular system is caused by
(a) Algae
(b) Cyanobacteria
(c) Mycoplasma
(d) None of these
Ques. Which of the following symbiotic association is not useful as biofertilizer?
(a) Rhizobium and leguminous roots
(b) Azolla and Anabaena
(c) Algae and fungi
(d) Roots of higher plants and fungi
What is Algae?
Algae are a large group of photosynthetic eukaryotic organisms. The group comprises species from several distinct clades. The word algae is an informal term that describes a diverse array of creatures. They are a multifaceted organism, which is why there are many different types of algae. Let’s examine some of the most common types of algae and learn more about their evolutionary history. This will help you understand what they are and how they differ from one another.
Algae are microscopic and require a moist environment to survive. They are found around water bodies, including lakes and oceans. Although algae resemble plants, they lack the basic structural components of plants, such as true stems, leaves, and shoots. Additionally, they lack vascular tissues, which circulate essential nutrients and water. In contrast, algae have photosynthesis capabilities similar to plants and possess specialized cell-organelles.
Algae live in colonies. Each algae colony consists of many cells. Each cell carries a pigment known as chlorophyll. It also contains other colors, such as fucoxanthin. In addition to their photosynthesis, algae also have different specialized functions. For example, some of these organisms use their ability to withstand ultraviolet rays to protect themselves. These specialized features allow algae to rely on each other to survive.
