Free Biodiversity and Variety of Life MCQs with Answers
3,130 Biodiversity and Variety of Life MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
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3,130 questions · page 19 of 157
- A. Cellulose
- B. Cutin
- C. Lignin
- D. Chitin
Explanation: Answer is "Chitin"Explanation: Fungi have battery of enzymes to decompose cellulose, lignin and cutin but chitin cannot be broken down by…
Correct answer: Chitin- A. Rusts, Smuts
- B. Ergot of eye, red rot of sugarcane
- C. Brown rot of plums and apricots
- D. Cotton seed rot and apple scab
Explanation: Answer is "Rusts, Smuts"Explanation: The most devastating parasitic fungi for cereal crops.
Correct answer: Rusts, Smuts- A. Club fungi
- B. Sac fungi
- C. Conjugating fungi
- D. Imperfect fungi
Explanation: Answer is "Imperfect Fungi" Explanation:
Correct answer: Imperfect fungi- A. Oral thrush
- B. Vaginal thrush
- C. Oral and vaginal thrush
- D. Ringworm
Explanation: Candida albicans can cause the following conditions:1. Oral Thrush: Candida albicans can infect the mouth, resulting in a condition called…
Correct answer: Oral and vaginal thrush- A. Usually
- B. Always
- C. Never
- D. Very occasionally
Explanation: Very Occasionally Fatal: This option is more accurate. Histoplasmosis is very occasionally fatal, primarily in cases where it spreads to…
Correct answer: Very occasionally- A. Aspergillus ⎯⎯→ Aspergillosis ⎯⎯→ AIDS ⎯⎯→ Death
- B. Aspergillosis ⎯⎯→ Aspergillus ⎯⎯→ AIDS ⎯⎯→ Death
- C. AIDS ⎯⎯→ Aspergillosis ⎯⎯→Aspergillus ⎯⎯→ Death
- D. AIDS ⎯⎯→Aspergillus ⎯⎯→Aspergillosis ⎯⎯→Death
Explanation: Answer is "AIDS - Aspergillus -Aspergillosis - Death"Explanation: Aspergillosus occurs in those persons who suffers from any type of…
Correct answer: AIDS ⎯⎯→Aspergillus ⎯⎯→Aspergillosis ⎯⎯→Death- A. Aspergillus
- B. Candida
- C. Neurospora
- D. Agaricus
Explanation: Answer is "Aspergillus"Explanation: It is decomposer and saprobic fungus.
Correct answer: Aspergillus- A. Histoplasmosis
- B. Ergotism
- C. Ringworm
- D. Aspergillosis
Explanation: Answer is "Egotism"Explanation: Ergot fungi refers to a group of fungi of genus Claviceps. The most prominent member in Claviceps pupurea.
Correct answer: Ergotism- A. Bracket fungi or shelf fungi
- B. Truffles or morels
- C. Mushrooms or truffles
- D. Black bread mold or pink bread mold
Explanation: Answer is "Bracket fungi or shelf fungi"Wood rotting fungi destroy not only living trees but also structural timber.
Correct answer: Bracket fungi or shelf fungi- A. Twort
- B. D'Herelle
- C. Louis Pasteur
- D. Charles chamberland
Explanation: Answer is "D' Herelle"Explanation: As far as discovery is conserned, Towrt discovered the bacterial viruses earlier than D'Herelle…
Correct answer: D'Herelle- A. Bacteria
- B. Rabies virus
- C. TMV
- D. HIV
Explanation: Answer is "Rabies virus"Explanation: Those days word virus was generally used for any poisonous fluid which caused any disease or death.
Correct answer: Rabies virus- A. TMV
- B. Pox virus
- C. Rabies virus
- D. Polio virus
Explanation: Answer is "TMV"Explanation: TMV was crystallized by W. M Stanley.
Correct answer: TMV- A. 250 nm
- B. 20 nm
- C. 150 nm
- D. 200 nm
Explanation: Answer is "200nm"Explanation: Pox virus is the largest virus with 200 nm size.
Correct answer: 200 nm- A. W.M Stanley
- B. Ivanowsky
- C. Chamberland
- D. Twort
Explanation: Answer is "Ivanowsky"Explanation: Ivanowsky took bacteria free extract from infected tobacco leaves and sprinkled it over healthy plants…
Correct answer: Ivanowsky- A. Capsids
- B. Capsomeres
- C. Monomers
- D. Amino acids
Explanation: Answer is "Capsomeres"Explanation: Capsomeres are those protein subunits whereas capsid is entire protein coat.
Correct answer: Capsomeres- A. Chemical nature
- B. Type of subunits
- C. Number of subunits
- D. Role in the life cycle
Explanation: Answer is "Number of subunits"Explanation: Herpes virus have 162 capsomeres, whereas adenovirus have 252 capsomeres.
Correct answer: Number of subunits- A. 70
- B. 80
- C. 90
- D. 100
Explanation: Answer is "90"Explanation: Herpes virus have 162 capsomeres, whereas adenovirus have 252 capsomeres. Net difference is that of 90 capsomeres
Correct answer: 90- A. Absorptive heterotrophic mode
- B. Eukaryotic organization
- C. Centrioles present
- D. Nuclear mitosis
Explanation: Answer is "Centriole present"Explanation: Fungi like plants lack centrioles.
Correct answer: Centrioles present- A. Hypha
- B. Mycelium
- C. Fruiting body
- D. Coenocyte
Explanation: Answer is "Mycelium"Explanation: The body of fungus, called mycelium, consists of long, slender, branched tubular thread like filaments…
Correct answer: Mycelium- A. Yeast
- B. Mushrooms
- C. Toadstools
- D. Fruiting bodies
Explanation: Option a) Yeast: Correct! Non-hyphal unicellular fungi are called yeast.
Correct answer: Yeast