GENERAL HISTOLOGY

INTRODUCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A single-celled organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle .
A
Prokaryote
B
Eukaryote
C
Nucleus
D
Single-celled organism
Explanation: 

Detailed explanation-1: -A prokaryote is a simple, single-celled organism that lacks a nucleus and membrane-bound organelles.

Detailed explanation-2: -By definition, prokaryotes lack a membrane-bound nucleus to hold their chromosomes. Instead, the chromosome of a prokaryote is found in a part of the cytoplasm called a nucleoid. Prokaryotes generally have a single circular chromosome that occupies a region of the cytoplasm called a nucleoid.

Detailed explanation-3: -Eukaryote refers to any of the single-celled or multicellular organisms whose cell contains a distinct, membrane-bound nucleus. Organisms such as animals, plants, fungi, and protists are examples of eukaryotes because their cells are organized into compartmentalized structures called organelles, such as the nucleus.

Detailed explanation-4: -The cell types in Bacteria and Archaea are considered as “prokaryotes.” The use of the term prokaryote was first introduced as a result of electron microscope studies showing a shared simple cell structure among bacteria (Stanier & Van Niel 1962).

There is 1 question to complete.