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Tuesday, 16 June 2026
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Biology Past Questions and Answers

Topic: Living organisms

Jamb Biology Questions - Living organisms

Question 181:
Stomatal pores open when there is
  • A An increase in the sugar content of guard cells
  • B A decreases in the osmotic concentration of the guard cell
  • C A decrease in the sugar content of mesophyll cells
  • D An increase in the sugar content of mesophyll cells
View Answer & Explanation
Question 182:
A band of connective tissue linking two bones in a joint is known as
  • A Tendon
  • B Cartillage
  • C Synovial membrane
  • D Ligament
View Answer & Explanation
Question 183:
During binary fission in lower organisms, the nucleus is known to undergo
  • A Mitosis
  • B Meiosis
  • C Fragmentation
  • D Mutation
View Answer & Explanation
Question 184:
One reason for the success of Mendel's work is that the
  • A Was the first to carry out research work on modern genetics
  • B Introduced quantitative and qualitative elements into his work
  • C Selected two characteristics only at a time for study
  • D Drew up his laws of inheritance based on his knowledge of chromosomes
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Question 185:
The nucleus is considered the central organelle of a cell because it
  • A Contains the genetic material
  • B Contains the nuclear sap
  • C Is bounded by the nuclear membrane
  • D Is located at the center of the cell
View Answer & Explanation