Algae MCQs | Algae Multiple Choice Questions(MCQs) & Answers

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Questions
1 Heterocysts are found in
A Nostoc
B Cystopus
C Ulothrix
D Aspergillus

Answer: Nostoc
2 What is the storage product of most algae?
A Cellulose
B Glycogen
C Starch and oil
D Fat

Answer: Starch and oil
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3 In Ulothrix, reduction division takes place at the time of
A germination of zygote
B formation of spores
C formation of gametes
D formation of zoospores

Answer: germination of zygote
4 Agar, which is the solidifying agent in many bacterial culture media, is part of the cell wall of
A chlorophyta
B chrysophyta
C pyrrophyta
D rhodophyta

Answer: rhodophyta
5 Number of flagella produced by motile cells in
A members of the phaeophyta is greater than members of the Oomycota
B members of the Oomycota is greater than members of the Phaeophyta
C members of the Phaeophyta is approximately equal to members of the Oomycota
D none of the above

Answer: members of the Phaeophyta is approximately equal to members of the Oomycota
6 Characteristics used to place algae into divisions include all of the following except
A form of storage material
B flagella number and location
C accessor pigments used in photosynthesis
D all of the above

Answer: All of the above
7 Which of the following is correct?
A All members of photolithotrophic autotrophs are also members of algae, but not all members of algae are members of photolithotrophic autotrophs
B All members of algae are also members of photolithotrophic autotrophs, but not all members of photolithotrophic autotrophs are members of algae
C All members of photolithotrophic autotrophs are members of algae, and all members of algae are members of photolithotrophic autotrophs
D No member of photolithotrophic autotrophs is a member of algae

Answer: All members of algae are also members of photolithotrophic autotrophs, but not all members of photolithotrophic autotrophs are members of algae
8 Zooxanthellae are algal symbiont that live within coral reef animals. These algae belong to
A chlorophyta
B chrysophyta
C pyrrophyta
D rhodophyta

Answer: pyrrophyta
9 Algae is a nonvalid taxinomic term that refers to
A eukaryotic organisms that have chlorophyll a and produce O2
B well developed cellular structure including a conducting system
C Both (a) and (b)
D none of the above

Answer: Eukaryotic organisms that have chlorophyll a and produce O2
10 Filaments of Ulothrix are
A branched
B unbranched
C brick-shaped
D girdle-shaped

Answer: Unbranched
11 Which is a rich source of protein ?
A Nostoc
B Anabaena
C Spirulitia
D Oscillatoria

Answer: Spirulitia
12 Red colour of the red algae is due to
A y-phycocyanin
B Xanthophyll
C Carotene
D y-phycoerythrin

Answer: Y-phycoerythrin
13 Algae are classified into 6 groups, technically known as
A categories
B divisions
C genera
D domains

Answer: Divisions
14 Cyanobacteria name has been given to
A Mycoplasma
B Myxophyceae
C Myxomycetes
D Schizomycetes

Answer: Myxophyceae
15 Spirogyra differs from moss-protonema in having
A pyrenoids
B branched filaments
C discoid chloroplasts
D rhizoidal branches

Answer: Pyrenoids
16 Simplest type of reproduction in plants is found in
A Ulothrix
B Nostoc
C Chlamydomonas
D Spirogyra

Answer: Chlamydomonas
17 Parasitic alga is
A Cephaleuros
B Ulothrix
C Spirogyra
D Chlamydomonas

Answer: Cephaleuros
18 The algae Chlamydomonas demonstrates a complex life cycle that switches between haploid and diploid forms. This life cycle is called
A the sexual-asexual exchange
B the transposition cycle
C an alternation of generations
D algal transformation

Answer: An alternation of generations
19 The __________ is the vegetative body of algae.
A mycelium
B pseudoplasmodium
C is scattered the least by smoke or fog
D thallus

Answer: Thallus
20 Which algal division never produces motile, flagellated cells among any of its members?
A Chlorophyta
B Chrysophyta
C Phaeophyta
D Rhodophyta

Answer: Rhodophyta
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