9 Questions
What do herbivorous insects primarily feed on?
Plant tissue
Which of the following is NOT a physical defense mechanism of plants against herbivores?
Silica and lignins deposited into tissue
What is a common chemical defense used by plants to interfere with insect feeding?
Proteinase inhibitors
Why might chewing on certain plants lead to the release of toxic substances like hydrogen cyanide?
To protect the plant from herbivores
What function do lectins serve in the context of plant defenses against herbivorous insects?
Interfering with insect digestion
In what way do proteinase inhibitors affect insect-plant interactions?
Deactivating plant defensive proteins
What is the main mechanism behind behavioral resistance in insects according to the text?
Avoidance of plants with toxins
Which enzyme family is most well understood in the context of metabolic resistance mentioned in the text?
P450s
What differentiates Monarch butterflies from other insects regarding cardiac glycosides according to the text?
They use cardiac glycosides for plant defense
Test your knowledge on the outline related to herbivorous insects and plant defenses as covered in Entomology 104 by Johnson. Explore topics like how insects overcome plant defenses, strategies for plant feeding taxonomy, and plant defense mechanisms. Get familiar with physical, chemical, and biological aspects of plant interactions.
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