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Question 22

Conduction of water and mineral salts through the xylem vessels is enhanced because the xylem cells are

  • A.thickened with lignin
  • B.long, narrow tubes placed end to end
  • C.close to the endodermis
  • D.centrally placed in the roots
Objective

Question details

Exam body
WAEC
Subject
Biology
Year
2013
Question no.
#22
Type
Objective
Previous · Q21The process by which plants manufacture food from carbon dioxide and water using… Next · Q23 Which of the following factors is likely to increase the rate of transpiration…

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