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Questions and Answers
Which of the following is a physical or chemical signal that plants use to recognize pathogens?
Which of the following is a physical or chemical signal that plants use to recognize pathogens?
- Water
- Carbon dioxide
- Fragments from the cell walls of bacteria and fungi (correct)
- Sunlight
What happens when a pathogen is recognized by proteins on the surface of plant cells?
What happens when a pathogen is recognized by proteins on the surface of plant cells?
- The plant cell membrane becomes more permeable (correct)
- The plant cell membrane disappears
- The plant cell membrane stays the same
- The plant cell membrane becomes less permeable
What is the purpose of cell wall apposition?
What is the purpose of cell wall apposition?
- To repair wounds in the bark
- To reinforce the cell wall with aggregates of material in the cytoplasm near a defect in the wall (correct)
- To release hydrogen peroxide and kill microbes directly
- To isolate the pathogen with a cluster of dead plant cells
What is the purpose of programmed cell death (apoptosis)?
What is the purpose of programmed cell death (apoptosis)?
What is the purpose of delayed active responses?
What is the purpose of delayed active responses?
What is one important strategy of delayed active responses?
What is one important strategy of delayed active responses?
What is systemic acquired resistance?
What is systemic acquired resistance?
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