Microbiology - Bacteria Morphology - Discussion
Discussion Forum : Bacteria Morphology - Section 1 (Q.No. 6)
6.
Which of the following may contain fimbriae?
Discussion:
18 comments Page 1 of 2.
Neljun said:
2 years ago
Fimbriae also referred to as attachment pilus by some scientists is an appendage that can be found on both Gram-positive and Gram-negative bacteria, composed of helically arranged protein subunits. These appendages range from 3 to 10 nm to several micrometres.
Dikshasingla said:
9 years ago
You are right @Dancan.
Fimbriae are not used for locomotion they are used for attachment and exchange of genetic material during conjugation.
Generally, fimbriae occur in Gram-negative bacteria but it also occurs in some gram-positive and some archaea.
Fimbriae are not used for locomotion they are used for attachment and exchange of genetic material during conjugation.
Generally, fimbriae occur in Gram-negative bacteria but it also occurs in some gram-positive and some archaea.
(1)
Balaji said:
1 decade ago
Mostly Gram negative bacteria's are said to be motile but some of them are also non-motile. Gram Positive bacteria's don't have flagella and are said to be non-motile organisms.
Dancan said:
9 years ago
Fimbriae are not used for locomotion they used for attachment and exchange of genetic material during the conjugation. You're wrong when you say fimbriae used for motility.
Saurabh said:
8 years ago
No, @Stella.
Because many, not all gram+ bacteria have fimbriae but all grame- bacteria have fimbriae. That's why gram (-) was the better answer I think.
Because many, not all gram+ bacteria have fimbriae but all grame- bacteria have fimbriae. That's why gram (-) was the better answer I think.
Stella said:
9 years ago
Many (not all) gram- bacteria contain fimbriae and some gram+ also.
So, the option C is the best for me.
So, the option C is the best for me.
Urooj said:
6 years ago
As it said which bacteria may contain it's mean if they have few or more. Then the answer should be C.
(1)
Wafha said:
7 years ago
Flagella present in G+ and G- bacteria.
Fimbriae present majority in G-bacteria. No/less in G+.
Fimbriae present majority in G-bacteria. No/less in G+.
Pooja said:
8 years ago
Yes, @Saurabh.
The fimbriae occur in gram - bacteria so I also think option B is correct.
The fimbriae occur in gram - bacteria so I also think option B is correct.
Stephen said:
6 years ago
The answer should be B, because most gram-negative bacteria have fimbriae.
(1)
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