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12345 [234]
2 years ago
11

1. What information/structures were you able to glean from the Gram stain that you could not get from the methylene blue stain?

Biology
1 answer:
kumpel [21]2 years ago
4 0

Answer 1: Gram staining can stain the outer structure of cell such as cell wall and cell membrane. This stain used to identify the gram positive and gram negative cell in a cluster of bacterial colony. These structure can not be stained by using methylene blue.

Answer 2: Methylene blue stain used to stain the internal structures of the cell including DNA in nucleus and RNA fractions in cytoplasm.  These structures can not be stained and identified using gram staining.

Answer 3: A research paper (J. gen. Microbiol. (1963), 30, 223-235) stated that  Saccharomyces cerevisiae is a gram positive bacteria.

Answer 4: A research paper (The Chemical Composition and Structure of the Yeast Cell Wall) provided the actual and true composition of  yeast cell wall. According to this paper, yeast cell wall is composed of protein  ( 13%), lipids (8.5%), and Polymaccharides (78%). While on the other hand cell wall of gram positive bacteria is composed of peptidogylcane (50-60%), lipids (1-4%), teichoic acid and lipoteichoic acid. Further, cell wall of gram negative bacteria composed of lipopolysacharides, lipoproteins, peptidoglycane and lipids (11-12%).

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How are the graphs of a body chemical controlled by negative feedback and a body chemical controlled by positive feedback simila
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Answer:

brainliest plzzzzz

Explanation:

There is a proper mechanism of controlling the levels of various kinds of hormones and chemicals in our body called as positive feedback and negative feedback.

In a very simple language you can understand it as whenever there is a release of a particular hormone or chemical inside the body in very huge amount then the negative feedback of the body is activated the production of that particular hormone or chemical is stopped and vice -versa for negative feedback.

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