(a) Name the polysaccharide that makes up the bacterial cell wall. (b) Bacterial
ID: 65305 • Letter: #
Question
(a) Name the polysaccharide that makes up the bacterial cell wall.
(b) Bacterial cell walls are classified as Gram-negative or Gram-positive according to the response for the Gram stain. What structural characteristic is responsible for this outcome? (answer should be brief – three or four sentences! Alternatively, you can draw clear, labeled diagrams to point out the differences)
(c) What is the most common storage polysaccharide in plants?
(d) In what two chemical forms does (c) exist? (names only)
(e) Name the type of glycosidic linkage in each form in (c). Point out the MAJOR difference between the two forms. (You can draw a figure to show the differences using a diagram or, give a clear description without the diagram).
Explanation / Answer
(a) Name the polysaccharide that makes up the bacterial cell wall.
(b) Bacterial cell walls are classified as Gram-negative or Gram-positive according to the response for the Gram stain. What structural characteristic is responsible for this outcome?
(c) What is the most common storage polysaccharide in plants?
(d) In what two chemical forms does (c) exist?
(e) Name the type of glycosidic linkage in each form in (c). Point out the MAJOR difference between the two forms.
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