Which of These Experiments Would NOT Be a Reason to Fractionate

question 44

Multiple Choice

Which of these experiments would NOT be a reason to fractionate bacterial cells?

• A) to obtain membrane fractions to study transport proteins
• B) to purify ribosome subunits to study translation
• C) to obtain periplasmic proteins to study chaperons from that space
• D) to obtain cytoplasmic proteins such as FtsZ
• E) to study the growth rate of E. coli in the presence of lactose

---

Definitions:

K+ Channels

Potassium channels that allow the selective passage of potassium ions across cell membranes, important for various physiological processes.

Plateau Phase

A stage in some processes where a level of activity or condition remains consistently steady before an eventual change or decline.

Cardiac Cycle

The sequence of events that occur in a complete heartbeat, including contraction and relaxation of the atria and ventricles.

Right Atrium

The right upper chamber of the heart that receives deoxygenated blood from the body and pumps it to the right ventricle.