How Are Integral Membrane Proteins Thought to Enter the Lipid

question 94

Multiple Choice

How are integral membrane proteins thought to enter the lipid bilayer?

• A)They insert into the membrane from the RER lumen after their synthesis is complete.
• B)The aqueous translocon channel seems to have a gate that continuously opens and closes,giving each nascent polypeptide segment a chance to partition itself into the lipid bilayer's hydrophobic core.
• C)They insert into the membrane from the cytosol after their synthesis is complete.
• D)It is thought that they burrow into the lipid bilayer.
• E)It is thought that they are enzymatically implanted in the lipid bilayer.

Recognize the relationship between efficiency and equity, including the trade-offs involved.

Identify how prices serve as economic signals in markets.

Understand the concept of total surplus and its components: consumer surplus and producer surplus.

Recognize the role of property rights in market efficiency.

---

Definitions:

Capital Structure

The composition of a company's funding through debt and equity, and how it impacts its risk and value.

Fixed Cost

Business expenses that remain constant regardless of the level of production or sales, such as rent, salaries, and insurance premiums.

Financial Leverage

The use of borrowed funds with a fixed cost in an attempt to increase the returns to shareholders by magnifying investment gains or losses.

EBIT

Earnings Before Interest and Taxes, a financial metric that calculates a firm’s profit excluding interest and income tax expenses.