When a Membrane Is Prepared by Freeze-Fracture and Examined Under

question 53

Multiple Choice

When a membrane is prepared by freeze-fracture and examined under the electron microscope, the exposed interior of the membrane bilayer appears to be covered with bumps. These bumps are

• A) integral membrane proteins.
• B) ice crystals.
• C) platinum.
• D) organelles.
• E) vesicles.

---

Definitions:

Bias-Motivated Crimes

Crimes that are committed based on prejudice towards the victim's race, religion, ethnicity, sexual orientation, or any other defining characteristic.

Police Brutality

Excessive or unnecessary use of force by police against civilians.

Intractably Opposed

Describes parties or opinions that are so strongly opposed to each other that no agreement or compromise seems possible.

Discrimination

Unjust or prejudicial treatment of different categories of people, especially on the grounds of race, age, sex, or disability.