Question

All but which one of the following bacterial structures are external to the cell?
a) plasmid
b) capsule
c) peptidoglycan
And why? you choose that answer . Thanks

Answer 1

Which name is missing?

Answer 2

Plasmid and Capsule are there; what's not?

Answer 3

I think plasmid

Answer 4

but i dont know how to explain

Answer 5

At first i think the capsule, because it is external to the cell. So, it is wrong. the right answer is plasmid.the only thing i know about plasmid is it described as an extra chromosomal DNA in a bacterial cell

Answer 6

"Peptidoglycan, also known as murein, is a polymer consisting of sugars and amino acids that forms a mesh-like layer outside the plasma membrane of most bacteria, forming the cell wall."

Answer 7

But I dont know why. it is plasmid, the bacterial structures are not external to the cell

Answer 8

Can you explain for me why it is plasmid? I dont understand it

Answer 9

"A plasmid is a small DNA molecule that is physically separate from, and can replicate independently of, chromosomal DNA within a cell. Most commonly found as small circular, double-stranded DNA molecules in bacteria, plasmids are sometimes present in archaea and eukaryotic organisms."

Answer 10

thanks