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Thursday, 30 April 2026
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Biology Past Questions and Answers

Jamb 1999 Biology Questions

Question 11:
In plant cells, the chloroplast are located
  • A Inside the cell wall
  • B Outside the protoplasm
  • C Within the vacuole
  • D Within the cytoplasm
View Answer & Explanation
Question 12:
In the woody stems, gaseous exchange takes place through the
  • A Micropyles
  • B Stomata
  • C Lenticels
  • D Vessels
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Question 13:
Substance manufactured by the leaves are transported to other parts of the plant through the
  • A Phloem
  • B Companion cells
  • C Sieve tubes
  • D Cambium
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Question 14:
After a meal of yam has been digested, the highest concentration of glucose is to be found in the
  • A Hepatic artery
  • B Pulmonary vein
  • C Hepatic portal vein
  • D Posterior vena cava
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Question 15:
The dark reaction of photosynthesis involves
  • A Fixation of carbon (IV) oxide to give six-carbon sugar
  • B Fixation of carbon (IV) oxide with the help of oxygen
  • C Use of carbon (IV) oxide to produce glucose using ATP
  • D Fixation of carbon (IV) oxide on chlorophyll using hydrogen
View Answer & Explanation