What Is a Potential Problem with the Use of Transgenic

question 20

Multiple Choice

What is a potential problem with the use of transgenic varieties of plants that contain Bt toxin?

• A) Bt toxin may be harmful to humans.
• B) Bt toxin may be harmful to some beneficial insects.
• C) Transgenic crop varieties with Bt toxin are not very hardy and require a lot of care.
• D) Transgenic crop varieties with Bt toxin require large amounts of chemical insecticides to grow.

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Definitions:

Facilitated Diffusion

A process in which substances move across cell membranes with the help of carrier proteins, without the expenditure of energy.

Osmosis

The diffusion of water through a semipermeable membrane from a region of low solute concentration to a region of high solute concentration.

Simple Diffusion

The movement of molecules from an area of high concentration to an area of low concentration without the need for energy input, often across a permeable membrane.

Phagocytosis

The process by which cells engulf large particles or microorganisms, breaking them down within phagosomes, contributing to cellular defense and nutrient acquisition.