EVERYDAY SCIENCE

Detailed explanation-1: -Ribosomes are a specific target of some antibiotics since there is a significant difference in size and structure between eukaryotic and prokaryotic ribosomes: eukaryotic ribosomes consist of a 60S subunit and a 40S subunit, whereas prokaryotic ribosomes are composed of 30S and 40S subunits.

Detailed explanation-2: -Prokaryotic ribosomes contain 30S and 50S, the smaller unit and therefore the larger unit respectively whereas eukaryotic ribosomes have smaller subunit and bigger subunit as 40S and 60S respectively. Eukaryotic cells have chloroplasts and mitochondria as organelles and people organelles even have ribosomes 70S.

Detailed explanation-3: -Key Points. All prokaryotes have 70S (where S=Svedberg units) ribosomes while eukaryotes contain larger 80S ribosomes in their cytosol. The 70S ribosome is made up of a 50S and 30S subunits.

Detailed explanation-4: -Cell size. Typical prokaryotic cells range from 0.1 to 5.0 micrometers (m) in diameter and are significantly smaller than eukaryotic cells, which usually have diameters ranging from 10 to 100 m.

Detailed explanation-5: -Ribosomes from various sources (prokaryotes, eukaryotic cytoplasm, mitochondria, chloroplasts, and kinetoplasts) vary in size from 20 to 30 nm in diameter, but all are composed of a large and a small subparticle or subunit and perform similar functions in protein synthesis.