GENERAL HISTOLOGY

INTRODUCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following are present in prokaryotic cells?
A
Mitochondria, chloroplasts, DNA, nuclear membrane
B
Mitochondria, chloroplasts, DNA, ribosomes 80S
C
Cytoplasm, DNA, mitochondria, ribosomes 70S
D
Cytoplasm DNA, ribosomes 70S
Explanation: 

Detailed explanation-1: -(c) Ribosomes are 70S in prokaryotic cells and mitochondria.

Detailed explanation-2: -Prokaryotic cells lack nuclear envelope, membrane-bound cell organelles like endoplasmic reticulum (ER), lysosomes, mitochondria, etc. They have DNA as genetic material, cell wall, cell membrane, and 70S ribosomes.

Detailed explanation-3: -Complete answer: 70S ribosomes are found in prokaryotic cells and the chloroplast. 70S ribosomes are smaller in size that comprises two units. These are the large unit and small units. The large unit is the 50S and the small unit is 30S.

There is 1 question to complete.