Which Model Currently Describes the Structure of the Plasma Membrane

question 76

Multiple Choice

Which model currently describes the structure of the plasma membrane?

• A) endosymbiont model
• B) fluid-mosaic model
• C) plasmagel-plasmasol model
• D) lock and key model
• E) induced-fit model

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Definitions:

Bioaccumulation

The buildup of a persistent toxic substance, such as certain pesticides, in an organism’s body.

DDT

Dichloro-Diphenyl-Trichloroethane, a synthetic insecticide used historically for malaria and pest control, now banned in many countries due to environmental impact.

Nitrogen Cycle

A biogeochemical cycle that describes the transformations of nitrogen and nitrogen-containing compounds in nature.

Nitrogen Fixation

The process by which nitrogen gas from the atmosphere is converted into ammonia by certain bacteria, making nitrogen available to living organisms.