Question

Hemoglobin is a molecule that is found in red blood cells. These molecules have to last for months because red blood cells have no nucleus and are unable to make more hemoglobin (they cannot transcribe from no template). However, most proteins are much shorter-lived. What is the advantage to this?

a) Longer-lived proteins are more efficient
b) Shorter-lived proteins can adapt to changing conditions
c) Shorter-lived proteins require less energy
d) Longer-lived proteins are easier to synthesize

Answer 1

Shorter-lived proteins can adapt to changing conditions, which is their advantage.

Step-by-step explanation:

The advantage of shorter-lived proteins is that they can adapt to changing conditions.

Shorter-lived proteins can be synthesized and degraded more rapidly, allowing cells to respond quickly to changes in their environment. This flexibility is essential for maintaining homeostasis and responding to stressors.

On the other hand, longer-lived proteins, like hemoglobin, are more efficient at their specific functions and can perform them consistently over a longer period of time.