Which Part of a Cell Membrane Phospholipid Is Exposed to the Aqueous

question 62

Multiple Choice

Which part of a cell membrane phospholipid is exposed to the aqueous (watery) interior?

• A) hydrophilic head and tail
• B) hydrophilic tail
• C) hydrophilic head
• D) hydrophobic head
• E) hydrophobic tail

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Definitions:

Fixed Cost

A cost that does not vary with the level of output or sales over a certain period, such as rent or salaries.

Break-even Point

The point at which total costs and total revenue are equal, meaning no profit or loss is made, illustrating the minimum sales volume needed to cover fixed and variable costs.

Sales Mix

Sales mix refers to the proportion of different products or services sold by a company, influencing decisions on pricing, marketing, and production.

Variable Expenses

Costs that vary in direct proportion to changes in an organization's activity level or volume of output.