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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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2561
In a test for non-reducing sugars like sucrose, what is the significance of adding dilute hydrochloric acid to the original sugar solution? To
  • A. hydrolyse the non-reducing sugar
  • B. accelerate he rate of the reaction
  • C. stabilize the medium
  • D. sterilize the solution
View Answer & Discuss WAEC 2007
2562
'The colour that is associated with a positive iodine test is
  • A. brown
  • B. red
  • C. blue-black
  • D. yellow
View Answer & Discuss WAEC 2007
2563

Enzymes can be inactivated by certain chemical substances in the body called

  • A. catalysts
  • B. inhibitors
  • C. substrates
  • D. activators
View Answer & Discuss (1) WAEC 2007
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2564
Use the following equations to answer the question below
I - Boiled saliva + starch → X
II - Fresh saliva + starch → Y

What substances do X and Y represent?

  • A. X = Maltose and Y = Sugar
  • B. X = Starch and Y = Maltose
  • C. X = Sugar and Y = Starch
  • D. X = Maltose and Y = Starch
View Answer & Discuss (6) WAEC 2007
2565
Which of the following enzymes is not one of the main classes of enzymes?
  • A. Sucrase
  • B. Amylases
  • C. Proteases
  • D. Lipases
View Answer & Discuss (4) WAEC 2007
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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