What Makes Our Membranes Stronger but Less Fluid at Normal

question 30

Multiple Choice

What makes our membranes stronger but less fluid at normal body temperature and more fluid at lower temperatures?

• A) the presence of cholesterol
• B) the presence of double bonds in the phospholipid tails
• C) the presence of no double bonds in the phospholipid tails
• D) the lack of cholesterol
• E) the presence of the phosphate-containing "heads"

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Definitions:

Predatory Pricing

The practice of first setting prices low with the intention of pushing competitors out of the market or keeping new competitors from entering the market, and then raising prices to normal levels.

Lunch Special

A discounted or specially designed meal offered by restaurants during lunch hours to attract customers.

Markup Pricing

A pricing method in which a certain amount is added to the cost of the product, to set the final price; also called cost-plus pricing.

Profit Margin

A financial metric that measures the amount by which revenue from sales exceeds costs in a business, expressed as a percentage of total sales.