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Free download in PDF Algae Multiple Choice Questions & Answers for competitive exams. These Algae Objective Questions with Answers are important for competitive exams like NEET, AIIMS, JIPMER, B.SC and Board Exams etc.
(1)
Heterocysts are found in
[A]
Nostoc
[B]
Cystopus
[C]
Ulothrix
[D]
Aspergillus
(2)
What is the storage product of most algae?
[A]
Cellulose
[B]
Glycogen
[C]
Starch and oil
[D]
Fat
(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
(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
(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
(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
(11)
Which is a rich source of protein ?
[A]
Nostoc
[B]
Anabaena
[C]
Spirulitia
[D]
Oscillatoria
(12)
Red colour of the red algae is due to
[A]
y-phycocyanin
[B]
Xanthophyll
[C]
Carotene
[D]
y-phycoerythrin
(13)
Algae are classified into 6 groups, technically known as
[A]
categories
[B]
divisions
[C]
genera
[D]
domains
(14)
Cyanobacteria name has been given to
[A]
Mycoplasma
[B]
Myxophyceae
[C]
Myxomycetes
[D]
Schizomycetes
(15)
Spirogyra differs from moss-protonema in having
[A]
pyrenoids
[B]
branched filaments
[C]
discoid chloroplasts
[D]
rhizoidal branches
(16)
Simplest type of reproduction in plants is found in
[A]
Ulothrix
[B]
Nostoc
[C]
Chlamydomonas
[D]
Spirogyra
(17)
Parasitic alga is
[A]
Cephaleuros
[B]
Ulothrix
[C]
Spirogyra
[D]
Chlamydomonas
(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
(20)
Which algal division never produces motile, flagellated cells among any of its members?
[A]
Chlorophyta
[B]
Chrysophyta
[C]
Phaeophyta
[D]
Rhodophyta
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