Which statement about the two defense systems shown in the simulation is true?
A.
B.
C.
D.
Correct. See Key Concept 38.2 Plants have Mechanical and Chemical Defenses against Herbivores
Incorrect. See Key Concept 38.2 Plants have Mechanical and Chemical Defenses against Herbivores
Activity 38.1 Quiz
Canavanine is not lethal to certain insect species. Which statement provides a plausible reason for this observation?
A.
B.
C.
D.
Correct. See Key Concept 38.2 Plants have Mechanical and Chemical Defenses against Herbivores
Incorrect. See Key Concept 38.2 Plants have Mechanical and Chemical Defenses against Herbivores
Activity 38.1 Quiz
Which of the following could be expected to disrupt the chemical defense mechanism mediated by jasmonate?
A.
B.
C.
D.
Correct. See Key Concept 38.2 Plants have Mechanical and Chemical Defenses against Herbivores
Incorrect. See Key Concept 38.2 Plants have Mechanical and Chemical Defenses against Herbivores
Activity 38.1 Quiz
Refer to the table.
Mutant
Quantity of jasmonate induced by wounding
Quantity of transcription factor
Quantity of transcription factor inhibitor
1
Moderate
Low
Low
2
None
High
None
3
High
None
Low
A research group investigating the biological pathways involved in jasmonate defense against herbivory developed three mutant plants of the same species. Each mutant differed from the others and had unique characteristics as shown in the table. What do you predict about the response to wounding by insects in each of these mutant plants?
A.
B.
C.
D.
Correct. See Key Concept 38.2 Plants have Mechanical and Chemical Defenses against Herbivores
Incorrect. See Key Concept 38.2 Plants have Mechanical and Chemical Defenses against Herbivores