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Biology 1990 JAMB Past Questions

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16
The mode of nutrition in which digestion is extracellular is
  • A. holophytic
  • B. parasitic
  • C. holozoic
  • D. saprophytic
View Answer & Discuss (3) JAMB 1990
17
The first step in the process of photosynthesis is the
  • A. activation of the chlorophyll
  • B. photolysis of water
  • C. reduction of carbondioxide
  • D. formation of sugar
View Answer & Discuss (9) JAMB 1990
18
Which of the following food substance will produce a brick-red colour when warmed with Benedict's solution?
  • A. Glucose
  • B. Starch
  • C. Egg white
  • D. Maltose
View Answer & Discuss (7) JAMB 1990
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19
The organ which secretes digestive enzymes as well as hormones is the
  • A. liver
  • B. salivary gland
  • C. pancreas
  • D. spleen
View Answer & Discuss (2) JAMB 1990
20
The vilius in the small intestine is significant because it
  • A. increase the surface area for absorption
  • B. increase the surface area for digestion
  • C. assists in mixing digested food
  • D. assists in filtering undigested food
View Answer & Discuss (5) JAMB 1990
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