This is part 5 of the test series which includes important botany and biology questions with answers. These questions are in the form of MCQs about Botany, Biology and Science which will help you in various exams and tests.
The links to the important Botany and Biology questions with answers are given below.
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Here are the important MCQs about Botany
1: Spophyte is partially or wholly dependent on which group of plants?
(a) Thallophyta
b) Bryophyta
(c) Pteridophyta
(d) Gymnosperms
Answer: Bryophyta
2: Which of the following are ubiquitous?
(a) Protists
b) Monerans
(c) Plants
(d) Fungi
Answer: Monerans
3: On the basis of evolution, which is the most primitive kingdom of organisms?
(a) Protista
(b) Monera
(c) Plantae
(d) Fungi
Answer: Monera
4: Prokaryotic cells lack:
(a) Nuclear envelope god DNA
b) DNA and mitochondria
(c) Nucleus envelope and membrane bound cell organelles
(d) Mitochondrion and nuclear substance
Answer: Nucleus envelope and membrane bound cell organelles
5: Which of the following plant groups shows maximum adaptability?
(a) Bryophytes
(b) Pteridophytes
(c) Gymnosperms
(d) Angiosperms
Answer: Angiosperms
6: In five kingdom system of classification prokaryotes belong to the kingdom of Whittaker, prokaryotes belong to kingdom:
(a) Protista
(b) Monera
(c) Mycota
(d) Prokaryota
Answer: Monera
7: Which is not included in the classification of Whittaker?
a) Viruses
b) Bacteriophages
(c) Viroids and prions Gay
d) All of these
Answer: All of these
8: According to four kingdom classification, the unicellular, non-nucleated organisms are placed in:
(a) Monera
(b) Protista
(c) Plantac
(d) Animalia
Answer: Monera
9: 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) Plantac
(d) Protista
Answer: Monera
10: Total root parasite having the largest flower is:
(a) Loranthus
(b) Cuscuta
(c) Rafflesia
(d) Lotus
Answer: Rafflesia
11: Both plants and animals are included in which classification?
(a) Tippo’s
(b) Eichler’s
c) Whittaker’s
(d) All of these
Answer: Whittaker’s
12: Oxygenic photosynthesis is a characteristic feature of which kingdom?
(a) Monera
(b) Fungi
(c) Plantae
(d) None of these
Answer: Plantae
13: Which of the following is a precursor of Plantae, Fungi and Animalia kingdoms?
(a) Monera
(b) Protista
(c) Progenote
(d) Archaebacteria
Answer: Protista
14: The practical purpose of the classification of living organisms is to:
(a) Trace the evolution of living organisms
(b) Explain the origin of living organisms
c) Name the living organisms
d) Facilitate the identification of unknown organisms
Answer: Facilitate the identification of unknown organisms
15: The Moneran devoid of cell wall is:
(a) Actinomycetes
b) Eubacteria
c) Mycoplasma
d) Archaebacteria
Answer: Mycoplasma
16: Who proposed the Five Kingdom Classification of organisms?
a) Whittaker
b) Bentham
c) Linnaeus
d) Rivinus
Answer: Whittaker
17: The reason for diversity in living beings is:
(a) Mutation
b) Long term evolutionary change
(C) Gradual change
(d) Short term evolutionary change
Answer: Long term evolutionary change
18: Plant decomposers are:
(a) Monera and fungi
b) Fungi and plants
(c) Protista and animalia
d) Animalia and monera
Answer: Monera and Fungi
19: On how many criteria living organisms have been classified into five kingdom?
(a) Two
(b) Three
c) Four
(d) Five
Answer: Four
20: The basic unit of classification of plants and animals:
a) Genus
b) Species
c) Variety
d) Sub-species
Answer: Species
21: Decomposers are:
a) Autotrophs
(b) Heterotrophs
c) Autoheterotrophs
(d) Organotrophs
Answer: Heterotrophs
22: The main criterion used by Whittaker in his five kingdom classification is:
a) Nuclear character
(b) Serological character
(c) Nutrition
(d) None of these
Answer: Nuclear character
23: In which of the following features gymnosperms resemble angiosperms?
(a) Presence of vessels
(b) Mode of fertilization
(c) Habit of endosperm
(d) Presence of ovule
Answer: Presence of Ovule
24: Fungi differ from other kingdoms in being:
(a) Unicellular decomposers
b) Unicellular consumers
c) Multicellular decomposers
d) Multicellular consumers
Answer: Multicellular decomposers
25: Tallest tree belongs to:
a) Monocots
b) Gymnosperms
c) Pteridophytes
d) None of these
Answer: Gymnosperms
26: Cryptogams are:
a) Naked Seeded plants
b) Non-flowering plants
c) Flowering plants
d) None of these
Answer: Non-flowering plants
27: Flagellum with a single strand and composed of flagellin is found in:
a) Prokaryotes
b) Eukaryotes
c) Both (a) and (b)
d) None of these
Answer: Prokaryotes
28: The greatest extent of adaptation to various environments is seen in:
a) Gymnosperms
b) Angiosperms
c) Bryophytes
d) Ferns
Answer: Angiosperms
29: Angiosperms differ from gymnosperms in:
a) Seeds
b) Fruits
c) Male gametophyte
d) Femlae gametophyte
Answer: Fruits
30: If decomposers on the earth are totally extinct, the most secure effect would be that:
a) Carnivores will not get food
b) Biomagnification
c) Minerals will not get recycled
d) Nitrogen fixation will suffer
Answer: minerals will not get recycled
31: The replacement of two kingdom grouping by five kingdom classification was proposed in the year:
a) 1859
(b) 1758
c) 1969
(d) 1919
Answer: 1969
32: Which of the following is not a character of a monocot?
a) Presence of a single seed leaf
(b) Endosperm present in the mature seed
(c) Leaves with parallel veins and smooth edges
d) Adventitious roots
e) Floral parts as multiple of four or five
Answer: Floral parts as multiple of four and five
33: The plants reproducing by spores such as mosses and ferns are grouped under:
(a) Bryophytes
b) Sporophytes
c) (Thallophytes
d) Cryptogams
Answer: Cryptogams
34: Which of the following pairs of plants is not seed producer?
a) Fanaria and Ficus
b) Fanaria and Fern
c) Punica and Pimus
(d) Ficus and Chlamydomonas
Answer: Funaria and Fern
35: Which of the following pairs correctly represents the grouping spermatophyta according to one of the schemes of classifying plants?
a) Pinas, Cycas
b) Ginkgo, Pisum
(c) Acacia, Casuarina
(d) Rhizopus, Triticum
Answer: Ginkgo, Pisum
36: Which of the following is true for angiosperms?
a) They have naked seeds
b) They are not cryptogams
(c) They have tracheids
(d) They lack companion cells
Answer: They are not Cryptogams
37: Cyanobacteria is:
a) Algae having blue-green pigment
b) Algae having red pigment
(c) Algae having brown pigment
(d) Algae having yellow-brown pigment
Answer: Algae having blue-green pigment
38: Tallest Angiosperms is:
a) Eucalyptus
(b) Red wood tree
c) Oak tree
(d) Pinus
Answer: Eucalyptus
39: Phenetic classification of organisms is based on:
a) Observable characteristics of existing organisms
b) The ancestral lineage of existing organisms
c) Dendrogram based on DNA characteristics
d) Sexual characteristics
Answer: Observable characteristics
40: Angiosperms have dominated the land flora primarily because of their
(a) Power of adaptability in diverse habitat
(b) Property of producing a large number of seeds
(c) Nature of self pollination
(d) Domestication by man
Answer: Power of adaptability in diverse habitat
41: Flowers in which only one set of essential organs is present are said to be
(a) Bisexual
(b) Monoecious
(c) Dioccious
d) Unisexual
Answer: Unisexual
42: Mosses and ferns are found in moist and shady places because both:
(a) Require the presence of water for fertilization
(b) Do not need sunlight for photosynthesis
(c) Depend for their nutrition on micro-organisms which can survive only at low temperature
(d) Cannot compete with sun-loving plants
Answer: Require the presence of water for fertilization
43: A plant which lives for a few days is called:
(a) Annual
(b) Perennial
(c) Biennial
(d) Ephemeral
Answer: Ephemeral
44: The most primitive of the following are:
(a) Cyanobacteria
(b) Bryophytes
(c) Gymnosperms
(d) Monocots
Answer: Cyanobacteria
45: Kingdom Protista includes:
(a) Amoeba, Euglena, Chlamydomonas
(b) Amoeba, Euglena, Escherichia
(c) Amoeba, Euglena, Pseudomonas
(d) Amoeba, Euglena, Penicillium
Answer: Amoeba, Euglena, Chlamydomonas
46: In five-kingdom system of classification of R.H. Whittaker, how many kingdoms contain eukaryotes?
a) Four
b) One
c) Three
d) Two
Answer: Four
47: Modern system of classification classified organisms in….kingdoms
(a) One
(b) Two
(c) Four
(d) Five
Answer: Five
48: Tallest tree is::
(a) Sequoia
(b) Eucalyptus
(c) Pinus
(d) Rannunculus
Answer: Sequoia
49: Which one of the following is a prokaryote:
(a) Entamoeba
(b) Saccharomyces
(c) Paramecium
d) E. coli
Answer: E.coli
50: The largest eggplant kingdom belongs to:
(a) Cycas
(b) Pinus
(c) Pridium
(d) Mangifera
Answer: Cycas
51: How many sub-phyla are available in Tracheata, according to Tippo’s classification of kingdom Plantae?
(a) 4
(b) 6
(c) 8
(d) 10
Answer: 4
52: In light of the recent classification of living organisms into three domains of life (bacteria, archaea and eukarya) which one of the following statements is true about archaea?
a) Archaea completely differ from both prokaryotes and eukaryotes
b) Archae completely differ from prokaryotes
c) Archae resemble Eukarya in all respects
d) Archae have some novel features that are absent in other prokaryotes and eukaryotes
Answer: Archaea have some novel features that are absent in other prokaryotes and eukaryotes
53: Which one of the following does not belong to Kingdom Monera?
A) Mycoplasma
b) Archaebacteria
c) Slimemould
d) Eubacteria
Answer: Slime mould
54: Two kingdoms constantly figured in all biological classifications are:
a) Plantae and Animalia
b) Monera and Animalia
c) Protista and Animalia
d) Protista and Plantae
Answer: Plantae and Animalia
55: A phylum common to unicellular animals and plants:
a) monera
b) Protista
c) Plantae
d) Fungi
Answer: Protista
56: The most widespread group of organisms on earth belong to Kingdom:
a) Monera
b) Protista
c) Fungi
d) Plantae
Answer: Plantae
57: Which one belongs to Monera?
a) Amoeba
b) Escherichia
c) Gelidium
d) Spirogyra
Answer: Escherichia
58: Protozoan protists are differentiated on the basis of:
a) Nuclei
b) Size
c) Shape
d) Locomotary structure
Answer: Locomotary structure
These are some of the important botany questions with answers. Checkout all the articles to learn better.