1. A virus can be considered a living organism because it
- responds to touch stimulus
- respires
- reproduces (inside the host)
- can cause disease
Answer: reproduces (inside the host)
2. Which of the following pair is correctly matched ?
- fungi saprophytic parasitic mode of nutrition.
- monera nuclear membrane is present.
- plantae cell wall is made up of cellulose.
- animalia cell wall is absent.
Answer: monera nuclear membrane is present.
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3. Which one is not an exception in angiosperms?
- Double fertilization
- Secondary growth
- Presence of vessels
- Autotrophic nutrition
Answer: Double fertilization
4. Plants having vascular tissue without seeds
- Angiosperm
- Pteridophytes
- Bryophytes
- Gymnosperms
Answer: Pteridophytes
5. Conifers can tolerate extreme environments because of
- Presence of vessels
- Thick cuticle
- Superficial stomata
- Broad hardy leaves
Answer: Thick cuticle
6. The cell wall of Spirogyra contains
- Cellulose
- Chitin
- Lignin
- Suberin
Answer: Cellulose
7. Isogamous condition with non-flagellated gametes is found in
- Chlamydomonas
- Volvox
- Spirogyra
- Fucus
Answer: Spirogyra
8. The transport of male gametes in bryophytes and pteridophytes occurs through
- Wind
- Water
- Birds
- Insects
Answer: Water
9. Which of the below statements is false?
- Pteridophytes reproduce by spores, following the cryptogamic principle,
- Sporophytes are the primary plant body in pteridophytes,
- Pteridophytes thrive in arid and chilly environments, such as mountains,
- Pteridophytes contain specialized vascular tissues.
Answer: Pteridophytes thrive in arid and chilly environments, such as mountains,
10. Yeast is not included in protozoans but in fungi because
- it has no chlorophyll.
- some fungal hyphae grow in such a way that they give the appearance of
pseudomycelium.
- it has eukaryotic organization.
- cell wall is made up of cellulose and reserve food material is starch.
Answer: some fungal hyphae grow in such a way that they give the appearance of pseudomycelium.
11. Most primitive vascular plants?
- Mosses
- Cycads
- Kelps
- Ferns
Answer: Ferns
12. Plants reproducing by spores are grouped under
- Bryophytes
- Sporophytes
- Cryptogams
- Thallophytes
Answer: Cryptogams
13. Double fertilization is the characteristic of
- Algae
- Gymnosperms
- Fungi
- Angiosperms
Answer: Angiosperms
14. Which one is responsible for the formation of peat?
- Riccia
- Sphagnum
- Marchantia
- Funaria
Answer: Sphagnum
15. Vascular bundles are not found in
- Gymnosperms
- Pteridophytes
- Angiosperms
- Bryophytes
Answer: Bryophytes
16. Bacteria lack alternation of generation because there is
- neither syngamy nor reduction division.
- no distinct chromosomes.
- no conjugation.
- no exchange of genetic material.
Answer: neither syngamy nor reduction division.
17. The plant group that posses the largest ovule, largest gametes, and largest tree
- Angiosperms
- Gymnosperms
- Pteridophytes
- Bryophytes
Answer: Gymnosperms
18. Prothallus gives rise to sporophyte without fertilization. This is known as
- Apogamy
- Parthenocarpy
- Parthenogenesis
- Apospory
Answer: Apogamy
19. Which of the phrases regarding bryophytes below is false?
- Bryophytes stop soil erosion,
- They break down rocks to create rich soil,
- They are utilized as fuel and as packing materials,
- Food packaging materials are made of bryophytes since they don’t absorb water.
Answer: Food packaging materials are made of bryophytes since they don’t absorb water.
20. What statement regarding the haplontic life cycle is incorrect?
- The predominant stage of its life cycle is the gametophyte stage.
- Sporophytes live independently.
- Spores are haploid in nature, and they divide during mitosis to generate gametophytes.
- Zygote functions as a sporophyte.
Answer: The predominant stage of its life cycle is the gametophyte stage.
21. Lichens indicate SO2 pollution because they
- show association between algae and fungi.
- grow faster than others.
- are sensitive to so2.
- flourish in so2 rich environment.
Answer: are sensitive to so2.
22. Zygotic meiosis is the characteristic of
- Fucus
- Funaria
- Marchantia
- Chlamydomonas
Answer: Chlamydomonas
23. Royal Botanical Garden is situated at
- United States of America
- England
- French
- India
Answer: England
24. ”An Integrated system of classification of flowering plants” appeared in the year
- 1881
- 1981
- 1883
- 1859
Answer: 1981
25. When a moist bread is kept exposed in air, it becomes mouldy and black because
- spores are present in the water.
- spores are present in the bread.
- spores are present in the air.
- the bread decomposes.
Answer: spores are present in the bread.
26. Which of the following statements concerning the diplontic life cycle is false?
- Sporophyte is the dominant phase,
- All spermatophytes have a diplontic life cycle,
- Sporophytes and gametophytes are mutually dependent,
- Sporophyte feeds on the gametophyte.
Answer: Sporophytes and gametophytes are mutually dependent,
27. Which of the following statements concerning gymnosperm reproduction is false?
- Microsporangium contains microsporocytes that go through meiosis to become microspores,
- Microspores then go through reduction division to create microgametophytes,
- Microgametophytes are also known as pollen grains,
- Wind, water, and insects function as dispersion agents for pollination.
Answer: Microsporangium contains microsporocytes that go through meiosis to become microspores,
28. Thalamus is prominent in
- Thalamiflorae
- Disciflorae
- Caliciflorae
- Inferae
Answer: Caliciflorae
29. Which of the following groups of protozoan is not correctly matched with its feature?
- Amoeboid – Marine forms have silica shells on their surface.
- Flagellated – Either free living or parasitic.
- Ciliated – Actively moving organisms due to presence of cilia.
- Sporozoans – Move and capture their prey with the help of false feet.
Answer: Sporozoans – Move and capture their prey with the help of false feet.
30. A colonial alga is
- Volvox
- Chlorella
- Ulothrix
- Spirogyra
Answer: Volvox
31. The family Gnetaceae is included under
- Monochlamydae
- Monocotyledons
- Dicotyledons
- Gymnosperms
Answer: Gymnosperms
32. A good example for natural system of classification is that proposed by
- Carolus Linnaeus
- Bentham and Hooker
- Adolf Engler and Karl Prantl
- Arthur Cronquist and Adjunct
Answer: Bentham and Hooker
33. The system of classification widely accepted and followed in India is the one proposed by
- Carleus Linnaeus
- Adolf Engler and Karl Prantl
- Lamarck
- Bentham and Hooker
Answer: Bentham and Hooker
34. Linnaeus is credited with introducing
- The concept of inheritance
- Law of limiting factor
- Theory of heredity
- Binomial nomenclature
Answer: Binomial nomenclature
35. In some viruses, RNA is present instead of DNA indicating that
- their nucleic acid must combine with host DNA before replication.
- they cannot replicate.
- there is no hereditary information.
- RNA can transfer heredity material.
Answer: RNA can transfer heredity material.
36. A plant that has seeds but no flowers and fruits?
- Bryophytes
- Gymnosperms
- Mosses
- Pteridophytes
Answer: Gymnosperms
37. Zygotic meiosis is the characteristic of
- Fucus
- Funaria
- Marchantia
- Chlamydomonas
Answer: Chlamydomonas
38. Agar is commercially obtained from
- Blue-green algae
- Red algae
- Brown algae
- Green algae
Answer: Red algae
39. The exine of pollen grain comprises
- Pectin and cellulose
- Lignocellulose
- Pollenkit
- Sporopollenin
Answer: Sporopollenin
40. What distinguishes liverworts from mosses in particular?
- Mosses have vascular tissue that liverworts lack.
- In contrast to liverworts, mosses have an intermediate stage known as protonema.
- Mosses grow taller, whilst liverworts do not.
- Sporophytes, specialized bodies found only in mosses, are missing in liverworts.
Answer: In contrast to liverworts, mosses have an intermediate stage known as protonema.
41. The later system of classification laid more importance
- Reproductive characters
- Vegetative characters
- Anatomical characters
- None of these
Answer: Reproductive characters
42. Pteridophytes differ from mosses in
- Independent gametophyte
- Dependent gametophyte
- Flagellate antherozoids
- Independent and dominant sporophyte
Answer: Independent and dominant sporophyte
43. First plants to inhabit the land
- Angiosperms
- Bryophytes
- Gymnosperms
- Pteridophytes
Answer: Bryophytes
44. Ustilago causes plant diseases (called smuts) because
- they parasitize on cereals.
- they lack mycelium.
- they develop sooty masses of spores.
- their affected parts becomes completely black.
Answer: their affected parts becomes completely black.
45. What stage of a liverwort’s life cycle is the most prevalent?
- Diploid sporophyte
- Diploid zygote
- Haploid gametophyte
- Diploid spores
Answer: Haploid gametophyte
46. Bacteria were regarded to be plants because
- some of them are green in colour.
- they are present every where.
- some of them cannot move.
- they have a rigid cell wall.
Answer: they have a rigid cell wall.
47. All important character are considered for classification in
- Artificial system
- Nature system
- Phylogenetic system
- Modern system
Answer: Nature system
48. The largest group of plant kingdom is
- Cryptogams
- Angiosperms
- Gymnosperms
- Phanerogams
Answer: Angiosperms
49. Plants that possess spores and embryo but lack vascular tissues and seeds?
- Rhodophyta
- Bryophyta
- Pteridophyta
- Phaeophyta
Answer: Bryophyta
50. Which of the following life cycles does Polysiphonia exhibit?
- Diplontic
- Haplontic
- Trilontic
- Haplo-diplontic
Answer: Haplontic