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Biology 2002 WAEC Past Questions

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26
After fertilization in the flowering plants, the zygote develops into the
  • A. plumule
  • B. radicle
  • C. cotyledon
  • D. embryo
View Answer & Discuss (1) WAEC 2002
27
Which of the following substances is contained in chloroplasts?
  • A. Starch
  • B. Sugar
  • C. Glycogen
  • D. Dextrin
View Answer & Discuss (7) WAEC 2002
28
The structures labelled II are
  • A. groundnut seeds
  • B. underground root nuts
  • C. root Tubers
  • D. root nodules
View Answer & Discuss WAEC 2002
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29
The structures labelled II are associated with
  • A. storage of plant nutrients
  • B. organic acids
  • C. nitrogen-fixing bacteria
  • D. putrefying microbes
View Answer & Discuss (2) WAEC 2002
30

Using iodine solution, Biuret test, Benedict reagents and ethanol, respectively in testing for reducing
sugars, which of the following trends of colour changes would be observed?

  • A. Blue → black → blue → brown → clear
  • B. Brown → blue → brick red → clear
  • C. Brown → violet → blue → clear
  • D. Brown → blue → violet → milky
View Answer & Discuss (4) WAEC 2002
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