Biology, Eighth Edition (Raven)

Chapter 1: The Science of Biology

Video Quiz - Pesticide Plants

Objective: Provide information about how pest resistance can be introduced into plants and compare/contrast the benefits and potential risks from this technology.

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One of the safety controls that is unique to plant incorporated protectants is that:
A)They don’t have to be monitored by any agency because there is no need for pesticides to be used any longer.
B)They are in the watchful care of the USDA, FDA and EPA combined.
C)They only have to be monitored at harvest time rather than throughout the growth cycle of the plant.
D)There ability to resist insect pest attacks makes them more prone to fungus invasion.

Why was the Environmental Protection Agency already familiar with the use of Bt toxin?
A)They had read about preliminary research that had been done in controlled lab settings with Bt toxin.
B)They had already made use of it in rice and barley pesticide resistance.
C)Bt toxin has been used safely as an external pesticide for many years.
D)Bt toxin had already been used for human plastic surgery use for several years.

What is one major area of concern about the use of genetically induced Bt toxin production?
A)The toxin will be made continuously, so will the insects become resistant to it by evolutionary selection pressures?
B)The danger that it will alter the safety for human consumption.
C)The risk that the plant will have growth with no limiting factor.
D)The danger in how the Bt toxin is prepared in a laboratory.

What is the potential risk of Bt toxin use in corn crops to Monarch butterfly populations?
A)The toxin will accumulate on their wings and hinder flight.
B)The toxin will prevent eggs from hatching.
C)The toxin will alter their migratory signals.
D)The toxin will be consumed in great quantities by erupted caterpillars.

What are non-Bt refuges?
A)They are plants that do not produce the toxin and are planted with the toxin producing ones to serve as non-resistant pest refuges.
B)They are plants that for some reason don’t synthesize the Bt toxin.
C)They are plants that stop producing the toxin over time.
D)They are plants that help to draw pests to the area to be killed by the toxin producing plants.
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