This is designed to talk about the current issues that face the field of Biology.
Tuesday, September 23, 2008
Bacteria
What is the difference between gram-positive and gram negative bacteria?
4 comments:
Anonymous
said...
Gram-positive – bacteria has a thick layer of peptidoglycan and no outer membrane. Gram-negative- bacteria has a thin layer of peptidoglycan and have an outer membrane.
Gram Negative is bacteria that has a thin layer of peptidoglycan and has an outer membrane. Gram Positive is bacteria with a thick layer of peptidoglycan and no outer membrane. The difference is the membrane and peptidoglycan.
Gram-positive is stained dark violet or dark blue. Gram-negative cannot retain the crystal violet stain and its stain also appear red or pink. Whereas, gram postive can retain the stain.
When you do your gram-staining you determine if the bacteria is gram-positive or gram-negative. If it's gram positive then the slide will turn dark blue or violet. If it is gram negative then the slide will turn red or pink.
4 comments:
Gram-positive – bacteria has a thick layer of peptidoglycan and no outer membrane.
Gram-negative- bacteria has a thin layer of peptidoglycan and have an outer membrane.
Gram Negative is bacteria that has a thin layer of peptidoglycan and has an outer membrane. Gram Positive is bacteria with a thick layer of peptidoglycan and no outer membrane. The difference is the membrane and peptidoglycan.
Gram-positive is stained dark violet or dark blue. Gram-negative cannot retain the crystal violet stain and its stain also appear red or pink. Whereas, gram postive can retain the stain.
When you do your gram-staining you determine if the bacteria is gram-positive or gram-negative. If it's gram positive then the slide will turn dark blue or violet. If it is gram negative then the slide will turn red or pink.
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