Question Detail

MIC 121 MCB 102 BACTERIA Objective Question

Question

Bacterial ribosomes are characterized as 70S particles, comprising a 50S large subunit and a 30S small subunit. What does the "S" refer to in this context?
Options
A Size (measured in meters)
B Shape (spherical)
C Sedimentation rate (Svedberg units)
Correct Answer
D Solubility (in water)
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 45 states that 'Ribosomes and their subunits are identified by their sedimentation rate', with the 'S' standing for Svedberg units.

Hint

This unit is named after a Swedish chemist who studied the rate at which particles settle in a solution.

Question Info