Which of the following does not describe a structure or function of the proteasome?
A) Digests proteins down to individual amino acids so they can be recycled by the cell
B) Looks like a hollow cylindrical drum made of protein subunits
C) Requires the small protein called ubiquitin to pull proteins in
D) All of the above are structures or functions of proteasomes.

Question

Quizplus · Accepted Answer

Proteasomes do not digest proteins down to individual amino acids; they break down proteins into shorter peptides, which are then further degraded into amino acids by other enzymes in the cell.

Which of the Following Does Not Describe a Structure or Function