Exam 39: Plant Defense Responses

Taxol, a secondary metabolite from the bark of the Pacific yew tree, is used as a treatment for

Which of the following chemicals is a signal that induces systemic acquired resistance?

Systemic response occurs when plants exhibit generalized defense responses in organs distant from the wound.

Parasitic fungi will usually attack a plant through stomata on the root surface.

Which of the following methods do fungi use in order to penetrate the initial layer of a plant's defenses?

Systemin can correctly be described as a(n)

How does systemin cause the activation of the wound response in tomato plants?

Many plants are filled with toxins that kill or deter herbivores.Many plants sequester these compounds within the cell.Where in the plant cell are these toxic substances most likely stored?

Which common crop may contain traces of hormone-like substances that may affect human health?

Tannins are chemicals that help plants repel invaders by

Phytoestrogens are steroid-like chemicals that are derived from soy.One of their characteristics is that they are able to

Which category of plant second metabolites includes stimulants like caffeine, nicotine, and cocaine?

Evidence that black walnut trees exhibit allelopathy includes

Systemic acquired resistance is

Nonnative plant invaders, such as the alfalfa plant bug, are extremely invasive and hard to control because

Cyanogenic glycosides, which break down into cyanide, are toxic to cells because they inhibit the function of which organelle(s)?