Multiple Choice
What is the probable role of salicylic acid in the defense responses of plants?
A) to destroy pathogens directly
B) to activate the systemic acquired resistance of plants
C) to close stomata,thus preventing the entry of pathogens
D) to activate heat-shock proteins
Correct Answer:
Verified
Correct Answer:
Verified
Q27: If a long-day plant has a critical
Q54: In an experiment,a plant physiologist has four
Q55: Which of the following chemicals functions as
Q56: Which of the following plant hormones plays
Q57: When growing plants in culture,IAA is used
Q58: Seed packets give a recommended planting depth
Q60: Which of the following is a long-day
Q61: Which of the following synthetic auxin functions
Q62: The transduction pathway that activates systemic acquired
Q63: Most scientists agree that global warming is