Question

70S type of ribosomes is found in –
(a) prokaryotic cells
(b) prokaryotic cells, chloroplasts and
mitochondria
(c) mitochondria
(d) nucleus and mitochondria

Answer 1

Answer:

B

Explanation:

70 70s type of ribosomes are found in prokaryotic cells chloroplast and mitochondria

Answer 2

70 S type of ribosomes is found in (b) Prokaryotic cells,chloroplasts and mitochondria.

• Each ribosomes is a dimer made up of two sub units i.e, a larger unit and a smaller unit.
• The 70 S ribosomes is made up of 50 S and 30 S sub units these units are known as Svedberg units.
• Ribosomes are about 25 nm in diameter in prokaryotic cells.