Top Botany MCQs online test 2024

Top Botany MCQs online test 2024: Looking to excel in botany this year? Our Top Botany MCQs Online Test for 2024 is the perfect tool to sharpen your skills and boost your knowledge. With a wide range of carefully curated questions, this test provides a thorough assessment of key botanical concepts and principles. Whether you're preparing for exams, quizzes, or simply want to enhance your understanding, our MCQ test is designed to challenge and inform. 

 Engage with the best in botany education through our interactive online test. It's tailored to help students and enthusiasts alike stay ahead in their studies with up-to-date questions reflecting the latest in botanical science. Take the test today to evaluate your knowledge and identify areas for improvement, all while enjoying a user-friendly and informative experience.

Below are the Top Botany MCQs online test 2024:

 30 Important Botany MCQs:

1➤ Some bacteria are not easily killed because of:

ⓐ Chitinous wall
ⓑ Their tolerant power
ⓒ Capsule
ⓓ Endospore formation

➤ Endospore formation

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2➤ A microbial mutant requiring growth factor in addition to a minimal medium is:

ⓐ Auxotroph
ⓑ Heterotroph
ⓒ Autotroph
ⓓ Syntroph

➤ Auxotroph

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3➤ Asexual reproductive structure in bacteria is called

ⓐ Akinete
ⓑ Heterocyst
ⓒ Endospore
ⓓ Exospore

➤ Endospore

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4➤ Point out the food poisoning and gas forming rod shaped bacterium

ⓐ Clostridium
ⓑ Salmonella
ⓒ Escherichia coli
ⓓ Shigellia

➤ Clostridium

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5➤ Crown galls are produced due to infection. of:

ⓐ Insects
ⓑ Bacterium
ⓒ Virus
ⓓ Fungus

➤ Bacterium

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6➤ Coliphage x 174 is a:

ⓐ Plant virus
ⓑ Bacteriophage
ⓒ Cyanophage
ⓓ Phycophage

➤ Bacteriophage

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7➤ Virus is not regarded as a cell, because:

ⓐ It is inactive unless it finds a host to multiply
ⓑ Most of the cellular activity is absent
ⓒ The genetic material does not replicate on its own
ⓓ All of above

➤ All of above

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8➤ What is termed as reconstitution in viruses?

ⓐ The ability to recombine their. constituents proteins and nucleic acids and become effective in infecting their host
ⓑ The lack of enzymes for energy conservation
ⓒ The coating of protein which is protective in nature
ⓓ The ability of viruses to replicate

➤ The ability to recombine their. constituents proteins and nucleic acids and become effective in infecting their host

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9➤ Viral DNA attach to bacterial DNA is called:

ⓐ Maycoplasma
ⓑ Zoophage
ⓒ Plaque
ⓓ Provirus

➤ Provirus

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10➤ Adenoviruses are:

ⓐ Naked DNA viruses
ⓑ RNA viruses
ⓒ Naked RNA Viruses
ⓓ Both (a) & (b)

➤ Naked DNA viruses

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11➤ The rusts are caused by:

ⓐ Ustilaginales
ⓑ Uredinales
ⓒ Peronosporales
ⓓ Erysiphales

➤ Uredinales

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12➤ The wall of hyphae of Rhizopus is made up of:

ⓐ Cellulose
ⓑ Pectin
ⓒ Callose
ⓓ Chitin

➤ Chitin

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13➤ Rhizopus resembles a moss in the both develop:

ⓐ Mycelia
ⓑ Archegonia
ⓒ Hyphae
ⓓ Spore

➤ Spore

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14➤ Penicillin was extracted by:

ⓐ Flemming
ⓑ Lamarck
ⓒ Huxley
ⓓ Brown

➤ Flemming

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15➤ Yeast is an important source of:

ⓐ Vitamin C
ⓑ Sugar
ⓒ Riboflavin
ⓓ Protein

➤ Protein

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16➤ Fungi occurring on wood are:

ⓐ Epibiotic
ⓑ Epixylic
ⓒ Eucarpic
ⓓ Epigean

➤ Epixylic

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17➤ Which is an ediable fungus:

ⓐ Rhizopus.
ⓑ Agaricus
ⓒ Bacteria
ⓓ Virus

➤ Agaricus

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18➤ Gibberelin was first extracted from:

ⓐ Fungi
ⓑ Algae
ⓒ Pectin
ⓓ Chitin

➤ Fungi

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19➤ The mushroom is:

ⓐ A plant consisting of fine green threads
ⓑ An edible fungus
ⓒ A bryophyte devoid of root
ⓓ A flowering plant

➤ An edible fungus

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20➤ The brown gills of the mushroom:

ⓐ Have no function to perform
ⓑ Are meant for its respiration
ⓒ Help the plant to float in water after heavy rains
ⓓ Bears spores which help in reproduction

➤ Bears spores which help in reproduction

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21➤ Leafless stem of onion which is produced to bear flowers is called:

ⓐ Scape
ⓑ Floral axis
ⓒ Peduncle
ⓓ Rachis

➤ Scape

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22➤ Epidermal outgrowths are known as:

ⓐ Stomata
ⓑ Trichomes
ⓒ Leaves
ⓓ Flower buds

➤ Trichomes

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23➤ Respiratory roots are found in:

ⓐ Vanda
ⓑ Tinospora
ⓒ Jussiaeu
ⓓ viscum

➤ Jussiaeu

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24➤ Which one of the following is classified on the basis of cotyledons?

ⓐ Bryophytes
ⓑ Gymnospenns
ⓒ Thallophytes
ⓓ Angiospenns

➤ Angiospenns

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25➤ Who proved that the cells are totipotent?

ⓐ Skoog
ⓑ Steward
ⓒ Miller
ⓓ White

➤ Steward

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26➤ Who succeeded in raising callus cultures from isolated cells?

ⓐ White
ⓑ Skoog
ⓒ Steward
ⓓ Muir and Lang

➤ Muir and Lang

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27➤ Germ-pores are found on the:

ⓐ Seeds
ⓑ Embryo sac
ⓒ Ovules
ⓓ Pollen grain

➤ Pollen grain

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28➤ Epiphyllous buds are those that arise from the:

ⓐ Entire plant
ⓑ Axil of the leaf
ⓒ Petals
ⓓ Surface

➤ Axil of the leaf

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29➤ In a twiner the climbing organ will be normally a:

ⓐ Spring-like tendril
ⓑ Woody curved hook
ⓒ Strong pointed spine
ⓓ Wire-like-stem

➤ Wire-like-stem

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30➤ Thick and woody twiners are known as:

ⓐ Creepers
ⓑ Lianas
ⓒ Suckers
ⓓ Climbers

➤ Lianas

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