Answer these 100+ Botany MCQs and see how sharp is your knowledge of Botany. Scroll down and let's start!
A. Pore surrounded by specialized guard cells
B. With
C. Seed dispersal
D. Roses
A. Ferns
B. Cucumber
C. Stigma
D. Cuticle
A. 4
B. 5
C. 3
D. 2
A. A multicellular extension of the root epidermis
B. A modified root that provides support and anchorage
C. An extension of an individual cell that absorbs water from soil
D. An outgrowth of the pericycle
E. An extension of the endodermis of roots
A. Flowers
B. A vascular system
C. Seeds
D. A life cycle that involves alternation of generations
E. A sporophyte phase
A. Dermal and ground tissue
B. Lateral tissues
C. Pith
D. Secondary tissues
E. Shoots and roots
A. Simpler morphologically, but not more evolutionarily primitive
B. Antibiotic-resistant genes
C. Involves DNA from the environment being taken up into a bacterial cell
D. The recipient cell remains an F- cell
A. Fertilization produces spores
B. Mitosis produces gametes
C. Fertilization produces gametes
D. Meiosis produces gametes
A. Germinate, and begin cell differentiation
B. Begin making their own food via photosynthesis
C. Develop the ability to reproduce
D. Start to sicken and perish
A. Gymnosperms
B. Angiosperms
C. Laurasians
D. Archaeopteryx
A. Mycelium; hyphae; smuts
B. Sporophyte; rusts; gametophytes
C. Stamens; stigma; rusts
D. Anther; stigma; smuts
E. Plants; smuts; rusts
A. Haploid... diploid
B. Diploid...haploid
C. Lignin... bryophytes
D. Bryophytes...Lignin
A. Sporophyte
B. Haploid
C. Spore
D. Zygote
A. Pericycle
B. Secondary xylem
C. Both
D. None of these
A. Reproductive cells
B. Thin filaments
C. Dead at maturity
D. Cross-walls
A. Mosses
B. Anthers
C. Ovules
D. None of these
A. Larger than
B. The same size as
C. Located on a separate plant from
D. Much smaller than
E. Absent and the entire plant is composed of
A. Embryos
B. Antheridia
C. Archegonia
D. Protonemata
E. Sporangia
A. Double fertilization
B. Diploid sporophyte
C. Female gametophyte
D. Megaspores or microspores
A. Sporophyte is diploid and produces spores
B. These protists produce chemical energy by fixing CO2
C. Lack of resources, predation, infection
D. Choanoflagellates are an outgroup to the animal lineages.
A. An exclusion principle
B. Biotic feedback
C. Resource partitioning
D. Predatory behavior
A. Minimum number of hours of darkness; short-day plants are long-night plants
B. The nights are the right length; The flowering of many plants is stimulated by the duration of periods of uninterrupted darkness.
C. Maximum number of hours of darkness; long-day plants are short-night plants
D. Photoperiod refers to seasonal changes in the relative lengths of day and night.
A. Whisk ferns
B. Mosses
C. Hornworts
D. All of these
A. Chemoheterotrophs
B. Photoautotrophs
C. Chemoautotrophs
D. Parasites
A. Attract pollinators.
B. Absorb ions.
C. Photosynthesize.
D. Produce more cells.
E. Produce flowers.
A. Karyogamy produces a diploid zygote
B. Plasmogamy is the fusion of hyphae
C. Hyphae form a network called a mycelium.
D. Karyogamy and meiosis
A. Increased surface area, increasing photosynthesis
B. Increased surface area, increasing gas exchange
C. Decreased surface area, reducing gas exchange
D. Decreased surface area, reducing water loss
A. Sporophyte dominant
B. Valvulitis
C. Bradycardia
D. Valvular prolapse
A. Produce seeds
B. Store nutrients
C. Photosynthesize
D. Produce spores
A. Stigma
B. Cucumber
C. Ovules
D. Anther
A. Anther; style
B. Stigma; ovule
C. Sepal; filament
D. Petal; ovary
A. Cotyledons form at the shoot end of the embryo
B. The shoot-root axis is established in the embryo
C. The primary root breaks through the seed coat
D. The shoot first breaks through the soil into the light as the seed germinates
A. Archegonia ... egg
B. Haploid ... meiosis
C. Diploid sporophyte
D. Vessel elements are wide
A. A
B. B
C. C
D. D
A. Decomposition
B. Mitosis
C. Meiosis
D. Hyphae
E. Binary fission
A. By producing sperm and eggs
B. By fission
C. By alternation of generations
D. By budding
A. Mitosis ... mitosis
B. Meiosis ... meiosis
C. Binary fission ... mitosis
A. Haploid sporophyte
B. Diploid sporophyte
C. Diploid gametophyte
D. Haploid gametophyte
A. Recycling nutrients from dead organisms back into the food chain
B. Above-ground reproductive structure
C. Wind
D. None of these
A. Produces flower and seed
B. Produces flower and fruits
C. Both of these
D. None of these
A. Moisture
B. The development of a flower
C. Wind
D. Light
A. Haploid ... meiosis
B. Diploid ... meiosis
C. Diploid ... mitosis
D. Triploid ... fertilization
A. Disperse seeds
B. Are multicellular and produce sperm via mitosis
C. Via cotyledons, a source of food for the embryo
D. None of these
A. Roots
B. Flowers
C. Diploid
D. Autotrophs
A. Haploid gametes by mitosis
B. Rhizomes and corms are ways to start a new individual without sex
C. Making gametes and making spores, the two generations are called gametophyte and sporophyte
D. Does not depend on for nutrients; prefers gametophyte
A. Water-conducting
B. Dissolved substances
C. A only
D. A and B
A. Lose water and plasmolyze
B. Gain water and plasmolyze
C. Gain water and Endodermis
A. Cell walls
B. Turgor
C. Stroma
D. Pith
A. 2,3
B. 2,4
C. 1,3
D. 2,3
A. Convection oven; conduction oven
B. Conection oven , conduction oven
C. Convection conduction
A. Photosynthesis
B. Respiration
C. Fermentation
D. The Calvin cycle
A. Transmits electrical signals
B. Transports viral RNA throughout the plant
C. Transports plant RNA throughout the plant
D. Transports proteins throughout the plant
A. Cell membrane
B. Cell wall..
C. Mitochondria
A. Pores
B. Spores
C. Mitocndria
A. .contains meristematic tissue
B. Is often sticky or has hairs
C. Contains sperm cells
D. Produces pollen
A. Produced sporophyte generations independent of, not dependent on, gametophyte generations
B. Produced much smaller sporophyte generations
C. Produced sporophyte generations that provided more nutrition to gametophyte generations
D. Probably experienced less competition for light
A. Protect the plant from soil microbes
B. Develop into lateral roots
C. Protect the plant from freezing
D. Increase the surface area for absorption
E. Help the root slide between soil particles
A. Are distributed evenly in all tissues throughout the plant
B. Are undifferentiated cells that produce new cells
C. Increase the surface area of dermal tissue by developing root hairs
D. Subdivide into three distinct cell types named parenchyma, ground meristem, and procambium
A. Are the main fuel sources in industrialized countries today
B. Are both formed from living or fossil plants
C. Are both formed under pressure deep in the Earth.
D. Were both commonly used throughout the United States through the early 1900s
A. Shoot tip
B. Root tip
C. Vascular cambium
D. Phloem
E. None
A. Meristem
B. Epidermis
C. Sclerenchyma
D. Collenchyma
A. Flowering plants
B. Angiosperms
C. Gymnosperm
D. None of these
A. Somatic or body cells … germ cells in the testes or ovaries
B. Germ cells in the testes or ovaries … somatic or body cells
C. Sexually reproducing organisms … asexually reproducing organisms
D. Adult organisms … zygotes and early embryos
A. Sieve-tube members; sugar
B. Xylem; sugar
C. Phloem; water
D. Xylem; water
A. Damp and shady
B. Damp
C. Shady
D. None of these
A. Looked very similar to that of today, with flowers, grasses, shrubs, and trees
B. Been completely bare rock, with little pools that contained cyanobacteria and protists
C. Been covered with tall forests in swamps that would become today's coal
D. Had non-vascular, green plants similar to liverworts forming green mats on rock
A. In the spring
B. In the summer
C. Steadily all year
D. None of these
A. Cell division at the shoot apical meristem.
B. Cell elongation directly below the shoot apical meristem.
C. Cell division localized in each internode.
D. Cell elongation localized in each internode.
E. Cell division at the shoot apical meristem and cell elongation directly below the shoot apical meristem
A. There were many different transitions from aquatic to terrestrial habitats
B. Wind-pollinated plants arose first
C. Land plants have undergone a diversification since they first colonized terrestrial habitats
D. There was a single transition from aquatic to terrestrial habitats
A. Seeds
B. Stolons
C. Corms
D. Meiosis
A. These protists produce chemical energy by fixing CO2
B. Wind-pollinated plants arose first
C. Land plants have undergone a diversification since they first colonized terrestrial habitats
D. There was a single transition from aquatic to terrestrial habitats
A. Fertilization
B. Stolons
C. Corms
D. Meiosis
A. Epidermis
B. Periderm
C. Cuticle
D. Vascular cambium
A. Reproduction
B. Disease
C. Germination
D. Mitosis
A. By translocation
B. By transpiration
C. Primary growth
D. Secondary growth
A. Dermal tissue
B. Sclerenchyma
C. Ground tissue
D. Vascular cambium
E. Vascular tissue
A. Dermal tissues
B. Corm
C. Rhizome
D. Stolon
E. Bulb
A. Corm
B. Rhizome
C. Stolon
D. Bulb
A. Tuber
B. Bulb
C. Corm
A. Rhizome
B. Stolon
C. Bulb
D. Corm
A. Sporangia
B. Microphylls
C. True roots
D. True leaves
A. Antibodies
B. Aflatoxins
C. Hallucinogens
D. Antigens
E. Antibiotics
A. Hyphae; mycelia
B. Mycorrhiza; mushrooms
C. Mycelium; hyphae
D. Mushroom; hyphae
A. Methanogens
B. Halophiles
C. Thermophiles
D. Yeast cultures
A. Wind
B. Water
C. Insects
D. Birds
E. All of the above
A. Carotenoid
B. Rhodophytes
C. Bacillariophytes
D. Psilophytes
A. Rhodophytes
B. Bacillariophytes
C. Psilophytes
D. Charophytes
E. Chrysophytes
A. 65%
B. 95%
C. 25%
A. Perennial
B. Weedy
C. Indeterminate
D. Primary
A. Haploid sporophyte
B. Diploid sporophyte
C. Haploid gametophyte
D. Diploid gametophyte
A. Diploid ... mitosis ... diploid
B. Diploid ... mitosis ... haploid
C. Diploid ... meiosis ... haploid
D. Haploid ... meiosis ... haploid
E. Haploid ... mitosis ... haploid
A. Haploid
B. Diploid
C. Tetraploid
D. Uniploid
A. Positive; sunlight
B. Sunlight; Secondary
C. Homeostasis; sunlight
D. Secondary; homeostasis
A. Green algae similar to charophytes; coastal marshes or lake fringes
B. Apical meristem; Stomata
C. Chloroplast; Xylem
D. None of these
A. Cultivation of agricultural land inhibits the decomposition of organic matter
B. Nitrogen-fixing bacteria are not as plentiful in agricultural soils because of the use of pesticides
C. Land that is available for agriculture tends to be nutrient-poor
D. The nutrients that become the biomass of plants are not cycled back to the soil on lands where they are harvested
A. Cucumber.
B. Broccoli stalk.
C. Radish.
D. Onion
A. Bryophytes
B. Ferns
C. Gymnosperms
D. Angiosperms
A. Breezes
B. Rain droplets
C. Seed-eating birds
D. Squirrels
A. Phototropism
B. Perennials
C. Hydrotropism
D. Thigmotropism
A. Dikaryotic
B. Haploid
C. Diploid
D. Triploid