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12345 [234]
3 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]3 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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1.
Alexeev081 [22]

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Learn more at: brainly.com/question/15413788?referrer=searchResults

5 0
3 years ago
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3 years ago
The range of motion as well as the direction of motion for the various regions of the spine differs. For example the lumbar spin
Temka [501]

Answer:

The correct answer will be option-D

Explanation:

A Facet joint is a synovial joint present between the inferior articular process of one vertebra to the superior articular process of another vertebra.

The facet joints form articular pillars which provide the structural stability and can have different orientation depending on the plane or angle they form.

1. When the articulating facets lie parallel to the frontal plane and form 45° angle to the transverse plane then it allows all the movements in the cervical spine.

2.  When the articulating facets 20° to the frontal plane and 60° to the transverse plane then it allows the lateral flexion and rotation in the thoracic spine region.

3. When the articulating facets form 45° to the frontal plane and they are at right angles to the transverse plane then it allows only flexion and extension in the lumbar region.

Thus, option-D is the correct answer.

6 0
4 years ago
Which description justifies why the theory of evolution is a theory and not a law?
kompoz [17]

The correct answer is B becasue laws ARE NOT predicted and theorys are.

I hope this helped and have a nice evening dear :)

6 0
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