How Is Membrane Protrusion by Blebbing Different from That by Lamellipodia

question 25

Multiple Choice

How is membrane protrusion by blebbing different from that by lamellipodia?

• A) Blebbing usually occurs on a rigid substratum such as glass, whereas lamellipodia form on pliable substrata.
• B) Blebbing is mostly observed in vitro, whereas lamellipodia are observed both in vitro and in vivo.
• C) Blebbing does not involve myosin II activity, but formation of lamellipodia does.
• D) Blebbing requires loss of membrane interaction with actin filaments, whereas lamellipodia require a close interaction between the two.
• E) All of the above.

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Definitions:

True Variable Cost

Costs that vary directly and proportionally with the level of production output, without any fixed component.

Total Variable Inspection Cost

The cumulative cost that varies directly with the volume of production or service, specifically related to the inspection of products or services to ensure quality.

Variable Inspection Cost

The expenses associated with quality control measures that fluctuate with the volume of production.

Machine-Hours

A measure of production output or activity based on the number of hours that machines are operated.