What Types of Molecules May NOT Need Transport Proteins to Be

question 26

Multiple Choice

What types of molecules may NOT need transport proteins to be able to cross cytoplasmic membranes?

• A) large molecules
• B) ions
• C) small hydrophobic molecules
• D) small hydrophilic molecules
• E) nothing crosses cytoplasmic membranes without transport proteins

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Definitions:

Selling Expenses

Costs incurred directly from the selling of products or services, including advertising, sales commissions, and store maintenance.

Variable Costs

Variable costs are expenses that change in proportion with the level of output or activity in a business.

Fixed Selling Expenses

Costs that do not fluctuate with sales volume, such as salaries of sales staff and advertising expenses.

Flexible Budget Graph

A visual representation that shows different levels of revenue and expenses based on varying levels of activity.