The Primary Function of the Proximal Convoluted Tubule Is

question 23

Multiple Choice

The primary function of the proximal convoluted tubule is

• A) filtration of anything small enough to pass through the filtration membrane.
• B) absorption of ions, organic molecules, vitamins, and water.
• C) secretion of acids, ammonia, and drugs.
• D) actively pumping sodium ions and chloride ions out of the filtrate.
• E) adjustment of urine volume in response to ADH and aldosterone.

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Definitions:

Engineering Approach

A detailed analysis of cost behavior based on an industrial engineer’s evaluation of the inputs that are required to carry out a particular activity and of the prices of those inputs.

Mixed Costs

Expenses that have both fixed and variable components, changing with the level of activity but having a base cost.

Statistical Analysis

The process of collecting, examining, interpreting, and presenting data to discover underlying patterns and trends.

Variable Cost

Costs that vary directly with the level of production or service activity, such as raw materials and direct labor.