Scenario 15.4: Consider the Following Information

question 117

Multiple Choice

Scenario 15.4:
Consider the following information:
You are considering buying a refrigerator. A new model would lower your electricity bills from $1200 per year to $1000 per year, because your current refrigerator is very inefficient. The refrigerator you want sells for $800, and you expect it to last for 10 years. The interest rate is 6%.
-Refer to Scenario 15.4. The present value of the electricity bill savings you will receive over the next 10 years is:

• A) $200 times 10.
• B) $200/1.06.
• C) $200/1.06¹⁰.
• D) $200 (1 + 1/1.06 + 1/1.06² + ... + 1/1.06⁹).
• E) $200 / (1 + 1/1.06 + 1/1.06² + ... + 1/1.06⁹).

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Definitions:

Membrane Channel Protein

Integral membrane proteins forming pores through cellular membranes, allowing selective transport of ions and molecules across membranes, crucial for various physiological processes.

Phospholipid Bilayer

The fundamental structure of cell membranes, composed of two layers of phospholipid molecules.

Integral Protein

Proteins that are permanently embedded within the plasma membrane, facilitating various cellular processes.

Hypertonic Solution

A solution with a higher concentration of solutes compared to another solution, leading to osmosis out of a cell.