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BOTANY MCQs

Total Questions : 82 | Page 3 of 9 pages
Question 21. Radioactivity is a phenomenon of the spontaneous emission of
  1.    protons (alpha particles)
  2.    electrons (beta particles)
  3.    gamma rays (short wave electromagnetic waves)
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above




Question 22. Organic Substances which, in very small amounts, control growth and development called
  1.    vitamins
  2.    hormones
  3.    enzymes
  4.    enzymes
 Discuss Question
Answer: Option B. -> hormones




Question 23. Movements due to light are shown by
  1.    flowering plants
  2.    lower plants
  3.    all land plants
  4.    all the plants
 Discuss Question
Answer: Option A. -> flowering plants




Question 24. Our major foods, fibres, spices, fruits and beverage crops are
  1.    flowering plants
  2.    gymnosperms plants
  3.    pteridophytes
  4.    bryophytes
 Discuss Question
Answer: Option A. -> flowering plants




Question 25. Outer covering of virus made up of protein is
  1.    capsid
  2.    coat
  3.    virion
  4.    viriod
 Discuss Question
Answer: Option A. -> capsid




Question 26. In which one of the following animals is skin a respiratory organ?
  1.    frog
  2.    shark
  3.    whale
  4.    cockroach
 Discuss Question
Answer: Option A. -> frog




Question 27. Which one of the following is a vitamin?
  1.    Citric acid
  2.    Folic acid
  3.    Glutamic acid
  4.    Lonoleic acid
 Discuss Question
Answer: Option B. -> Folic acid




Question 28. The richest source of vitamin D is
  1.    milk
  2.    cheese
  3.    cod liver oil
  4.    spinach
 Discuss Question
Answer: Option C. -> cod liver oil


No Explanation


Question 29. Oncogene is responsible for
  1.    cancer
  2.    aids
  3.    malaria
  4.    typhoid
 Discuss Question
Answer: Option A. -> cancer


No Explanation


Question 30. Which among the following is not a true fruit?
  1.    date
  2.    plum
  3.    apple
  4.    grape
 Discuss Question
Answer: Option B. -> plum


No Explanation


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