alleryStart learning →A ribosome is built from how many subunits, and of what kind?
AThree subunits of equal size
BOne subunit of protein only
CTwo subunits, large and small
DFour subunits made of lipid
Answer & Solution
Correct answer: C. Two subunits, large and small
1. Ribosomes are large complexes made of protein and RNA together.
2. Electron microscopy shows that each consists of two subunits.
3. The two are aptly called the large subunit and the small subunit.
4. No lipid is involved, so the answer naming lipid subunits is wrong.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 4 "Cell Structure", section 4.3 Eukaryotic Cells_
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