Multiple Choice
What 2 bacterial genera produce endospores?
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26. Prokaryotes
Prokaryotic Cell Structure
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Where is lipopolysaccharide (LPS) located in bacterial cells?
A
In the outer membrane of Gram-negative bacteria
B
In the cytoplasm
C
In the cell wall of Gram-positive bacteria
D
In the nucleus
Verified step by step guidance1
Understand the structure of bacterial cells, focusing on the differences between Gram-positive and Gram-negative bacteria.
Recognize that Gram-negative bacteria have an outer membrane, which is absent in Gram-positive bacteria.
Learn that lipopolysaccharide (LPS) is a large molecule consisting of a lipid and a polysaccharide, and it is a key component of the outer membrane of Gram-negative bacteria.
Note that the outer membrane of Gram-negative bacteria provides a barrier to certain antibiotics and is involved in the immune response.
Conclude that LPS is not found in the cytoplasm, cell wall of Gram-positive bacteria, or the nucleus, as these structures do not contain LPS.
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