EVERYDAY SCIENCE

SCIENCE

VIRUS AND BACTERIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the structures is NOT found in bacteria?
A
ribosome
B
cell membrane
C
cytoplasm
D
nuclear membrane
Explanation: 

Detailed explanation-1: -Organelles that are bound to membranes are absent from the nucleus of prokaryotic cells. A prokaryotic cell lacks the nuclear membrane.

Detailed explanation-2: -Explanation: Prokaryotes, such as bacteria, do not contain membrane-bound organelles such as the nucleus, mitochondria, and chloroplasts that we might find in a eukaryotic cell.

Detailed explanation-3: -Prokaryotic cells, such as bacteria, have a free-floating chromosome that is usually circular and is not enclosed in a nuclear membrane.

Detailed explanation-4: -Nuclear membrane is absent in kingdom Monera because it lacks well-defined nucleus and other membrane bound cell organelles like mitochondria, Golgi apparatus and chloroplast. Monera are the unicellular, prokaryotic organisms whose cell wall is not made up of cellulose.

Detailed explanation-5: -Bacteria, of course, have no nucleus and therefore also nuclear membrane. genetic information-DNA is organized into numerous chromosomes and is packaged in the nucleus.

There is 1 question to complete.